Paramount Residence Alma by Plasma Studio

This slatted structure by architects Plasma Studio looks like it’s crawling over an apartment building in the Italian Dolomites (+ slideshow).

Paramount Residence Alma by Plasma Studio

Plasma Studio were faced with the dual tasks of adding a circulation space and a new family home to an existing block in the South Tyrol village of Sesto, close to the Austrian border.

“An under-utilised roof space gave way to an angular crown, connected to a ground floor reception space and architectural office by the host’s renovated spine,” said the architects.

Paramount Residence Alma by Plasma Studio

Parametric software created an angular shape that folds around and on top of the original cuboid form, covered by thin strips of larch wood similar to the Strata Hotel the studio designed just down the valley.

The structure appears to grow out of the hillside, snaking up the back of the building as a series of faceted planes.

Paramount Residence Alma by Plasma Studio

Two levels are housed inside the extension, which uses the sloping site so the lower floor nestles against the top floor existing building but opens out onto a garden on the same level behind.

Inside, bedrooms face on to a corridor lit by a glass chasm that extends up and over the building.

Paramount Residence Alma by Plasma Studio

An open-plan living, kitchen and dining area are housed in the upper storey, which sits at a slight angle to the structure below to further differentiate it.

The large balcony on this level looks out to the forested hills and snow-capped peaks on the other side of the valley.

Paramount Residence Alma by Plasma Studio

These two floors are linked by internal and external staircases, and also connect to the circulation core that provides access to each of the six apartments in the whitewashed building underneath.

Plasma Studio has also designed an apartment block with jagged copper balconies and angular LED street lamps.

Paramount Residence Alma by Plasma Studio

More houses set in the rugged Italian landscape include a gabled home with stripy wooden walls and a holiday retreat that incorporates an enormous window frame into a reconstructed stone wall.

Photography is by Hertha Hurnaus.

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The architects sent us the project description below:


Paramount Residence Alma

This project was conceived to fulfil a two-part problematic: (1) Residence Alma -a Tyrolean guest house with 6 holiday apartments from the 1960s adorned with a pitched roof – was due for a common circulation and service core, and (2) the project architect, Ulla Hell, was looking for a new home for her young family of five in the mountain community of Sesto. The result: an under-utilised roof space gave way to an angular crown, connected to a ground floor reception space and architectural office by the host’s renovated spine.

Paramount Residence Alma by Plasma Studio
Extension diagram

Having already made their mark on nearby Residence Königswarte with the addition of the Strata Hotel in 2007, Plasma Studio sought to follow a similar skin organization. A timber strip section in larch wood was borrowed from the neighbouring Strata and extruded along two paths. The first stretches across the site, picking up the topography on either end of the building and climbing to enclose a third storey balcony. Here, the edge skirts around the existing footprint, leaving corners exposed to acknowledge its presence.

A second path draws the timber skin up from behind, folding around the chimney to return to the ground. Interstitial spaces between the exterior walls and wooden bands swell at ground level to offer sheltered outdoor living spaces. The design team employed parametric modelling software to optimize the density of these timber strips and their metal substrustructure, balancing budget, aesthetics, privacy and views. This approach allowed for flexibility throughout the design phase and output shop drawings for pre-fabricated elements at an efficient pace.

Paramount Residence Alma by Plasma Studio
Roof plan diagram

The Alma addition departs, however, from the Strata in its approach to volume. The practical constraints of a multi-room hotel structure called for a regular distribution of modules along a connecting spine. The perceived volume was achieved through horizontal sections around free-flowing terrace spaces. With the Alma, we took advantage of a more flexible program to create unique spatial conditions. These interior volumes are rendered legible from the exterior by the timber strips–an honest depiction of the playful activity within.

The interior of this family home is characterized by 360-degree views. Perhaps the most spectacular of these being a view of the sky through an incision over the central stair. This opening delivers an immediate reading of exterior weather conditions, collecting precipitation and receiving direct sunlight.

Paramount Residence Alma by Plasma Studio
Elevation diagram

The main living spaces are split over two floors with first floor bedrooms off a skylit corridor, and an open plan kitchen, dining and family room encircling a fireplace on the second floor. By grouping functional elements in orthogonal cores, the surrounding space is liberated. The exterior walls of the main living spaces collapse inwards to catch light, views and varying degrees of enclosure.

All living spaces in the private residence have direct access to the outside through a series terraces or gardens. Its multiple access points include: a main entrance through an internal connection to the neighbouring house, a series of openings that follow the natural topography, and an external stair connecting the third floor terrace to the garden. Each inhabitant has come to find their own favourite route.

Paramount Residence Alma by Plasma Studio
Isometric diagram

Limited material and colour palettes give strength to the space, with splashes of colour in the children’s washroom. The otherwise white walls provide a backdrop for an ever-changing display of shadows from the pleated roof above.

As the extension sits within the steep topography, substructural elements were developed in reinforced concrete, while the superstructure was built from prefabricated cross laminated timber (CLT) insulated with wood fiber and sealed with black bitumen. The outer skin in larch wood strips on a galvanized steel structure was determined according to cost and aesthetics by the aforementioned parametric model. A consistently limited colour code was applied to the exterior, allowing the volume to dissolve into the surrounding hillside when viewed from afar.

Through its use of form, materials and views, this newly completed addition flirts with its context at three scales. The first, and most immediate, with its host: as an addition to the Alma residence, it shares a newly renovated core, carrying the fractal geometry from the roof down to Plasma’s Italian office through the Alma’s cartesian skeleton. The second, with its neighbour: together the Strata and the Alma define the next generation of the family-owned hotel complex. And finally, with its terrain: the sculptural addition acts, not as a parasite, but as a mediator between the existing house and surrounding topography, extending from the landscape like a lichen.

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Highacres by Duncan Foster Architects

Glass walls slide back to open up this house extension by British firm Duncan Foster Architects to the surrounding English woodland (+ slideshow).

Highacres Oxfordshire by Duncan Foster Architects

Duncan Foster Architects added the new living and dining room while reorganising the interior of the 1930s Arts and Crafts-style five-bed house in South Oxfordshire.

Black zinc and black timber cladding were chosen for the external finishes to reference local agricultural buildings.

Highacres Oxfordshire by Duncan Foster Architects

Large-span laminated timber beams echo the exposed timber in the original house and allow for an uninterrupted view of the woodland as they require no support at the corner.

Vertical steel elements used along one wall extend out past a sunken pool. A large window fills the gable to let in the maximum amount of light.

Highacres Oxfordshire by Duncan Foster Architects

“The client had bought the property because of its charm and character, so the brief was to maintain the spirit of the existing house yet at the same time to re-organise the interior to open the house up to the landscape beyond,” said Duncan Foster.

After considering a variety of renewable energy options for heating the home, a log-burning boiler was chosen due to the availability of wood on the client’s land.

Highacres Oxfordshire by Duncan Foster Architects

Our most recent residential extension stories include a steel-clad tower inspired by the fortress of fairytale character Rapunzel and a timber-framed guest house raised up on stilts.

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Duncan Foster Architects sent us the following text:


Concept

The existing five-bed detached house was originally constructed in the 1930s as a ‘self build’ by a retired army major, in the arts and crafts style. The house occupies a 9 acre densely wooded site overlooking the Vale of Aylesbury, in Chinnor, South Oxfordshire, and is located within an Area of Outstanding Natural Beauty.

The client had bought the property because of its charm and character, so the brief was to maintain the spirit of the existing house (characterised by low ceilings, small windows and exposed timber beams) yet at the same time to re-organise the interior to open the house up to the landscape beyond.

Highacres Oxfordshire by Duncan Foster Architects

On the ground floor, the entrance hall, family living room and study retain original features. A small hall extension creates a bay window seat in the language of the existing house.

The new living/dining extension to the north contrasts the existing architecture – with a large open plan vaulted roof which sits on exposed glulam beams – chosen as a contemporary reference to the exposed beams in the main house.

The external structure enables the corner of the room to be opened up to the woodland landscape beyond. Minimal glazing strengthens the contrast with the existing glazing and links the building to the landscape beyond.

Highacres Oxfordshire by Duncan Foster Architects

Refurbishment Strategy

As well as the layout and design issues, the thermal performance of the existing fabric and the existing servicing strategy needed a complete overhaul.

The existing house was heated by an oil burning boiler. The oil bill alone was around £6000 per annum. The existing house had little or no insulation, and had single glazed Crittal windows

It was clear therefore that the first step was to improve the thermal performance of the existing fabric, and this was done by installing a new ground bearing insulated concrete slab throughout the ground floor, utilising underfloor heating. The existing external walls were cavity walls (uninsulated) so these were easily insulated with blown fibre.

Highacres Oxfordshire by Duncan Foster Architects

The existing roof and skeilings were insulated between joists and also underlined with rigid insulation with taped joints and re-plastered to proved a warm and air tight ‘hat’ for the building.

The majority of the glazing was replaced by double glazed timber windows, with a high performance aluminium glazing system specified for the extension.

All of these changes improved the efficiency, yet maintained the character of the existing house.

Several renewable technologies were considered at the outset, including ground source heat pumps via boreholes, and wind energy, but it was established early on that due to the abundance of woodland owned by the client, a log burning boiler would be utilised to provide the majority of the house’s hot water and heating demands.

Highacres Oxfordshire by Duncan Foster Architects

The Log Burning Boiler feeds a 1500L accumulator tank which acts as a thermal store to provide both the hot water and heating for the house. This is supplemented in the summer months by 2 roof mounted solar panels (when the log burning boiler is not used), and also by a small LPG condensing boiler to deal with vacations and any additional peak demands. The Orligno 200 log burning boiler was specified as it runs at an efficiency of 92%, with nominal CO2 emissions.

It is calculated that 90% of the houses heating and hot water will be met by the onsite renewables – reducing the client’s energy bill to approx £750 per year.

A purpose built plant room was built adjacent to the new front porch to accommodate the large accumulator, and the log burning boiler and LPG boiler. The layout of this underwent several permutations to ensure that the 1250mm diameter accumulator, the log burning boiler and the LPG boiler could all be accessed for both operational and maintenance purposes- as well as integrating the flue requirements. The plant room sits within the recess of the existing house’s front elevation, without dominating the existing character of the house.

In addition to the log burning boiler, a 8kwP bank of PV’s was installed within the curtledge and is expected to provide 6867kwH/Y, with an estimate annual saving/earning of £1665, with an 8 year payback period.

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Maiden Tower by Marte.Marte Architects

The towering fortress of fairytale character Rapunzel inspired this steel-clad house extension that accommodates the three oldest daughters of Austrian architect Stefan Marte (+ slideshow).

Maiden Tower by Marte.Marte Architects

Named Maiden Tower, the four-storey residence sits alongside the family’s existing concrete home in the Alpine district of Vorarlberg, western Austria, and is clad with oxidising steel to create a visible contrast between the new and old structures.

Maiden Tower by Marte.Marte Architects

Stefan Marte, of Marte.Marte Architects, planned the building over four storeys, allowing each daughter to have her bedroom on a different floor to her sisters.

Maiden Tower by Marte.Marte Architects

A corridor leads through to the extension from the existing house, arriving at a small library. Beyond this, the girls have their own separate kitchen and dining room.

Maiden Tower by Marte.Marte Architects

A corner staircase leads up to the bedrooms, while doors lead out to a swimming pool and terrace in the garden.

Maiden Tower by Marte.Marte Architects

Corten-steel panels clad three sides of the tower, while the east elevation features floor-to-ceiling glazing, offering views back towards the main house.

Maiden Tower by Marte.Marte Architects

Additional windows and doors are dotted across the north and south elevations and can be concealed behind hinged steel shutters.

Maiden Tower by Marte.Marte Architects

This is the third project by Marte.Marte Architects to feature on Dezeen recently, following a twisted bridge and a concrete holiday house.

Maiden Tower by Marte.Marte Architects

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Maiden Tower by Marte.Marte Architects
Site plan – click for larger image

Photography is by Marc Lins.

Here’s a project description from writer Marina Hämmerle:


Maiden Tower

What could match the massive presence of Marte’s concrete home, this raw, stony material, this self‐contained unit? Oxidising steel: just as raw, just as authentic in its expression and its properties. The interior impression remains the same – wood surfaces, warm colours, fine pores. The new exterior structure, on the other hand, is masculine, striving skywards, rising up from the surrounding landscape like the neighbouring pear tree. That behind the massive exterior lies a building of lightweight materials may be inspired by the tale of the Trojan horse.

Maiden Tower by Marte.Marte Architects
Ground floor plan – click for larger image

A new space opens up between the two buildings, complemented by an in‐ground pool – uncompromising, hard, less sensible, but therefore all the more magical, idiosyncratic, and sensuous. Oxidising steel on the walls and bottom, encased like in a suit of armour. The tower also appears this way with its steel ventilation flaps to the north and south and fixed glazing to the east.

Maiden Tower by Marte.Marte Architects
First floor plan – click for larger image

Rapunzel, Rapunzel… Through the library, down a few steps into the separate kitchen, and then through the dining room, facing the pool, the little princesses can climb the newel stairs to their bedrooms. There, they are presented with a view, on the one hand, of their parents’ protective house and, on the other, the nearby scenic forest. The spatial perspective mirrors this interplay of freedom and guidance, becoming a symbol of their possibilities for development within the family.

Maiden Tower by Marte.Marte Architects
Second and third floor plan – click for larger image

The whole structure seems so sealed off, but in terms of use, it not only offers an astonishing amount of free space, but also conveys respect and draws boundaries. This makes it possible to live together in a relatively small space and at the same time provides each person with opportunities for participation and private space.

Maiden Tower by Marte.Marte Architects
Cross section – click for larger image

What an unparalleled atmosphere for the girls. If it is true that the first few years of life shape our future spatial desires, then these girls will have had a very valuable personal experience that their future Prince Charmings will probably not have had: a life in manifest appreciation.

Maiden Tower by Marte.Marte Architects
Elevations – click for larger image

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KubiK extension by GRAS arquitectos

Spanish firm GRAS arquitectos has extended a traditional detached house in Mallorca by adding a series of contrasting Corten steel boxes.

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The existing white-painted building was left intact, with the extensions joined to external walls or added to gaps between the structures.

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The steel volumes contain new facilities including an indoor pool, spa and game room, while a roof deck provides additional outdoor space with views of the nearby bay.

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An elongated extension housing the game room and a new bedroom projects into the garden and the spa area is buried in the side of a hill.

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The walls, ceiling and floors in the spa are covered with ipe wood (also known as Brazilian walnut) which adds warmth to the subterranean space, while south facing windows admit plentiful daylight.

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The architects explain that the the Corten volumes “surround and embrace the old house, generating an innovative combination between the existing building and the new ‘boxes’ of steel.”

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As well as creating an aesthetic contrast, Corten steel was chosen because it is “a ‘living’ material that changes over the years; acquiring the patina that [the] test of time provides to noble materials.”

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We recently featured a landscape architecture project comprising several Corten steel structures scattered across a Spanish hillside.

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See all of our stories about Corten steel and check out our Pinterest board dedicated to the material.

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Photography is by José Hevia.

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Here are some more details from the architects:


Kubik extension

Extreme contrast: extension of a single-family detached home in Mallorca.

The intervention in an existing building, and even more so with the ambition of this project, is always a delicate matter.

In this case the client wanted to add many programme requirements to the current house: an indoor pool, a game room and several rooms in addition to reorganizing the existing dwelling.

dezeen_KubiKextension-by-GRAS-arquitectos_Exploded-view

It was chosen, after much research, to extend the house through an exercise of Extreme Contrast.

The possibility of intervening in the façades of the existing house to adjust them to a more current aesthetic was cast aside; instead the contemporary language of the new volumes was emphasized to maximise contrast.

dezeen_KubiKextension-by-GRAS-arquitectos_Composite-view

The result is a series of “boxes” that surround and embrace the old house, generating an innovative combination between the existing building and the new “boxes” of steel. This combination enhances both architectures: the framing of the new volumes highlights the old, of little value and the new stands out greatly in contrast to the former.

dezeen_KubiKextension-by-GRAS-arquitectos_Plan
Plan – click for larger image

The materialisation of the project was in line with the concept; the original building was left in the same state, painted white, with sloping Arab tile roofs and wood carpentry, whilst the extension was done with Corten steel searching for rotundity of the elements.

dezeen_KubiKextension-by-GRAS-arquitectos_First-floor-plan
First floor plan – click for larger image

Corten steel is a material that clearly contrasts with the already existing dwelling, as required by the concept. It is also a “living” material that changes over the years; acquiring the patina that test of time provides to noble materials.

dezeen_KubiKextension-by-GRAS-arquitectos_Ground-floor-plan
Ground floor plan – click for larger image

The combination of both languages creates interesting situations and new programmes for the dwelling. The entrance sequence, which is essential in a house, is enhanced by architectural intervention: a new volume conceived as porch wraps-up arrivals; and the volume that houses the new bathroom of the main room projects over the garden creating a new porch which emphasises the exit to the garden, as well as it offers spectacular views over the bay of Palma. At the far ends of the house both the new bedroom as well as the game room project from the main volume stretching the house and spanning more garden and providing further views. Finally the indoor pool and spa are below ground level.

dezeen_KubiKextension-by-GRAS-arquitectos_North-elevation
North elevation – click for larger image

This unique space features a swimming pool, a small spa area and gym. A large window to the south maximizes the relationship with the surroundings and views, so that the SPA can become a semi-outdoor space. Aiming to provide this space with the maximum warmth, close attention has been paid to the materials in this area: the volume of concrete that forms the SPA is covered with IPE wood on both ground and ceiling, creating a continuous space that surrounds the pools, these in turn mollify in white marble to brighten the space. This way, users forget that they are in a buried space.

dezeen_KubiKextension-by-GRAS-arquitectos_East-elevation
East elevation – click for larger image

The result is a very cosy environment suitable for the purpose for which it is intended.

dezeen_KubiKextension-by-GRAS-arquitectos_South-elevation
South elevation – click for larger image

The house is situated on a plot within a pine forest, with a steep slope facing south and offers extensive views over the bay of Palma. By placing the semi-buried SPA volume in front of the house, advantage is taken of the SPA’s roof deck to extend the garden; thus the dwelling obtains a space it was lacking: a large landscaped horizontal surface.

dezeen_KubiKextension-by-GRAS-arquitectos_West-elevation
West elevation – click for larger image

KUBIK EXTENSION is a GRAS arquitectos project, Guillermo Reynes with Alvaro Perez

Architects: GRAS arquitectos, Guillermo Reynés con Álvaro Perez
Location: Palma de Mallorca, Spain
Area: 950 m2
Year: 2013
Photography:  José Hevia

dezeen_KubiKextension-by-GRAS-arquitectos_Section
Section – click for larger image

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Vale da Abelha House by Duarte Pape

Portuguese architect Duarte Pape has combined a long stone wall with folding timber facades in this residential extension in northwestern Portugal (+ slideshow).

Vale da Abelha House by Duarte Pape

Duarte Pape used timber cladding and blue limestone to extend the traditional Portuguese house located in a tiny rural village called Mação.

Vale da Abelha House by Duarte Pape

“The goal was to create a connection between the old structure and the surrounding nature,” explains the architect.

Vale da Abelha House by Duarte Pape

A long stone wall constructed from Portuguese blue limestone Ataija runs the entire length of the extension and stretches out into the surrounding landscape, providing protection from prevailing northerly winds.

Vale da Abelha House by Duarte Pape

Oriented for maximum sunlight, the south and east facades of the extension are encased in a timber shell with screens that concertina open in front of sliding glass doors.

Vale da Abelha House by Duarte Pape

Constructed from American pine, the timber structure extends beyond the building facade forming a chunky frame that overhangs the veranda.

Vale da Abelha House by Duarte Pape

A canopy can be suspended within the void of the frame to create a covered outdoor space.

Vale da Abelha House by Duarte Pape

The blue limestone floor and wall create a uniform backdrop within the interior space, broken up by a central support column that features a small open fireplace.

Vale da Abelha House by Duarte Pape

Private bedrooms and bathrooms are contained within the existing building, while the extension houses living areas, a kitchen and transitional spaces.

Vale da Abelha House by Duarte Pape

Duarte Pape collaborated closely with local carpenters and stonemasons during the design and construction process, including local sculptor Moisés Preto.

Vale da Abelha House by Duarte Pape

Other timber extensions we’ve recently featured on Dezeen include a converted chapel with a blackened-timber extension and a timber-clad house extension with curvy towers that point outwards like periscopes.

Vale da Abelha House by Duarte Pape

See all our stories about extensions »

Vale da Abelha House by Duarte Pape

Earlier this year we featured a Portuguese house that nestles into the landscape with an angular upper level that follows the incline of the hill.

Vale da Abelha House by Duarte Pape

See more houses in Portugal »

Vale da Abelha House by Duarte Pape

Photography is by Francisco Nogueira.

Vale da Abelha House by Duarte Pape

Here’s a project description from the architect:


Located in a small village in the Portuguese North West border, the project arises from the necessity of expansion of a preexisting old housing structure, with typical and vernacular identity, and adaptation to new constructive and spatial requirements.

Vale da Abelha House by Duarte Pape
Concept sketch

The preexisting structure – ground floor and first floor levels – hosts the private housing program, rooms and bathrooms, which in the constructive issue, sought to recover some of the traditional construction techniques, keeping as well the humble architecture language.

Vale da Abelha House by Duarte Pape
Ground floor plan – click for larger image

The new expansion volume, receives the social housing program – living rooms, kitchen and transition spaces – takes on to an contemporary language that searches for the better landscape framework, connected with the efficient sunlight orientation, that creates an fine relation between interior & exterior space. The option for the wood and noble material facade, contributes to the low visual impact and good integration to surrounding atmosphere.

Vale da Abelha House by Duarte Pape
First floor plan – click for larger image
Vale da Abelha House by Duarte Pape
West elevation – click for larger image
Vale da Abelha House by Duarte Pape
East elevation – click for larger image

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Cosgriff House by Christopher Polly

Australian architect Christopher Polly has converted a small Sydney bungalow into a two-storey house by adding extra rooms behind and underneath.

Cosgriff House by Christopher Polly

The extension more than doubles the floor area of Cosgriff House, a family residence in the Sydney suburb of Annandale. At ground floor level the plan extends to accommodate a new bathroom, bedroom and study room, while the extra storey below adds a large open-plan living and dining room at the same level as the garden.

Cosgriff House by Christopher Polly

Christopher Polly designed the extension as an asymmetric volume that initially follows the hipped profile of the house’s original roof but then angles up further to let in light through high-level windows.

Cosgriff House by Christopher Polly

The structure features an all-black exterior combining fibre-cement panels with black window and door surrounds, designed to complement the brown tones of the original brickwork facade.

Cosgriff House by Christopher Polly

A new staircase leads down from the ground floor to the large basement living room. The base of the stairs never meets the floor, creating the impression of a floating structure, while new storage closets are tucked into the space beneath.

Cosgriff House by Christopher Polly

Glazed panels open the living room out to the garden beyond. The architect has also integrated a system of louvred shutters that can be used to screen this elevation when residents want more privacy.

Cosgriff House by Christopher Polly

Other recently completed houses in Australia include a Melbourne residence with the silhouette of three little buildings and a Queensland house designed to withstand cyclones. See more houses in Australia.

Cosgriff House by Christopher Polly

Photography is by Brett Boardman.

Cosgriff House by Christopher Polly

Here’s a project description from Christopher Polly:


Cosgriff House

The project retains its original envelope as part of its environmental, economic and planning values. A substantial lower ground living volume is sensitively inserted beneath the original fabric to harness the fall in the site towards the rear, extending deeply beneath the existing dwelling and outwards towards the garden to transform it – while a re-crafted rear ground floor above enfolds the existing rhythm of front rooms over the new lower ground below.

Cosgriff House by Christopher Polly

Both levels accept a modestly-sized lightweight addition which extrapolates existing wall alignments, gutter levels and enclosing wall heights – that at once, extends and subverts existing geometries to present an interpreted mirrored slice of the original vernacular form attached to the retained rear fabric. An eccentric roof form extrapolates the original southern roof plane to mitigate adjacent impacts – lifting to light and tree views to the east, while also folding upwards for access to northern light and sky through a sole fire-rated window along the boundary.

Cosgriff House by Christopher Polly

The majority of the project is carefully crafted within the retained masonry and hipped roof envelope. Vaulted ceilings and skylights carved within the original roof form expand volumes for access to light and sky within the middle of the ground floor – while consciously surrendered floor area permits a generous stair void that spatially expands to the lower level below, and upwards to views of the external environment to strengthen connections to its setting.

Cosgriff House by Christopher Polly

Utilities located deep within the semi-subterranean rear of the lower ground enable direct connection of the living space to the garden and jacaranda tree, while the re-worked ground floor above adds a bathroom, main bedroom and adaptable bedroom providing flexibility for future use as a study. Fenestration placement improves natural light access and promotes passive ventilation, assisted by ceiling fans and a roof venting system to exhaust trapped heat out of the original roof space.

Cosgriff House by Christopher Polly

Location: Annandale, Sydney Australia
Architect: Christopher Polly Architect
Structural Engineer: SDA Structures
Hydraulic Engineer: ACOR Consultants
Builder: R.G.Gregson Constructions

Cosgriff House by Christopher Polly

Land Size: 370 sqm
Floor Area: 167 sqm
Completion: December 2012

Cosgriff House by Christopher Polly
Ground floor plan – click for larger image
Cosgriff House by Christopher Polly
Lower ground floor plan – click for larger image
Cosgriff House by Christopher Polly
Section AA – click for larger image
Cosgriff House by Christopher Polly
Sections BB and CC – click for larger image

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Pedervegen 8 by Rever & Drage

This timber-clad house extension in Norway by Oslo studio Rever & Drage features curvy towers that point outwards like periscopes (+ slideshow).

Extension in Molde by Rever & Drage Architects

Located on a hillside in the outskirts of Molde, the single-storey house had only a small bedroom and bathroom on its western side, so Rever og Drage Arkitekter was asked to increase the size of both of these rooms.

Extension in Molde by Rever & Drage Architects

Two towers with quarter-circle profiles were installed on the roof of the extension to function as lightwells. The first curves west to bring evening sun into the bathroom, while the second is pointed east to let morning sun into the bedroom.

Extension in Molde by Rever & Drage Architects

The bedroom extends outwards by just over a metre while the bedroom is now more than three metres wider. Together, the rooms frame a small terrace in the south-east corner of the plot.

Extension in Molde by Rever & Drage Architects

The clients asked for views across the water towards a mountain range, so the architect added generous windows to the southern elevations of both rooms.

Extension in Molde by Rever & Drage Architects

The exterior of the building is clad with white-painted timber boards to reference both the white-painted brick and brown timber panels of the existing house.

Extension in Molde by Rever & Drage Architects

“We initially wanted to make a clear distinction between the extension and the original building,” explain architects Tom Auger, Martin Beverfjord and Eirik Skogen Lilledrange. “At the same time we did not want to create too much contrast in terms of materials and formal means.”

Extension in Molde by Rever & Drage Architects

The architects carried out all the construction themselves.

Extension in Molde by Rever & Drage Architects

The small city of Molde is best known as the home of an annual jazz festival and Danish architects 3XN recently completed a cultural centre to be used there during the festivities.

Extension in Molde by Rever & Drage Architects

See more architecture in Norway, including a wooden house overlooking the sea and a small gabled summerhouse.

Photography is by Tom Auger.

Here’s a project description from Rever og Drage Arkitekter:


Extension of single-family house, Pedervegen 8, Molde

The new owner of a detached house in Molde wanted an extension of an existing bath- and bedroom. The house was still in more or less its original 1962-condition and appeared as a time-typical house from this period. That is Scandinavian functionalism with a flat roof and brown exterior panels contrasted with white brick walls. Furthermore the house had an elegant and somewhat closed composition.

Extension in Molde by Rever & Drage Architects

Above: floor plan – click for larger image

The owner wanted to get the evening sun in the bathroom (which was on the east side of the building) and to keep the morning sun in the expansion of the bedroom without being exposed to neighbours. Views of the spectacular mountain range to the south were required from both rooms.

We initially wanted to make a clear distinction between the extension and the original building. At the same time we did not want to create too much contrast in terms of materials and formal means. We chose to use wood cladding, as the existing building, while the colour of the new cladding was taken from the original bright brick walls. We also changed the orientation of the panels. In order to solve the requested light preferences we brought in a new form, the quarter circle, which we held for a type of basic shape that could easily relate to architecture of the early sixties.

Extension in Molde by Rever & Drage Architects

Above: cross section through bedroom – click for larger image

The bathroom has a clear everyday zone in the innermost part with shower, toilet and sink, while the outer section provides the more time-spending bathroom artifacts; a bathtub, a wide window sill with a view and a door to the garden. The latter part has a skylight in the shape of a curve facing west. The room bathes in the late evening sun when the west-coast weather allows it. Tiles are sober in the inner part, whilst the outer part has a more festive consortium. The contrast between the inner and outer zones of the bathroom was in danger of being too hard. The relaxing ambiguity is that the outer zone suggests peace of mind in its use, yet at the same the form here is intense. While the inner zone, which reflects more efficiency, has a calmer expression in terms of colours and patterns.

The bedroom is long and has three different zones. First, a dressing-section with a large mirror and a backstage-like atmosphere. In the middle a lounge area with a fireplace and a generous window facing the green to the north. At the end of the bedroom is the bed with a large window and its view to the south. Over the bed a vaulted ceiling with a window heralding the morning sun as well as giving a view of the stars at night.

Extension in Molde by Rever & Drage Architects

Above: cross section through bathroom – click for larger image

In retrospect, we were surprised at the modest exterior contrast between the extension and the original building. To a large extent we believe this is due to the fact that the selected wood panels have about the same size as the bonds in the original brick wall, so that these two surfaces relate. This is particularly evident in the north facade. Also, the quarter circles seem to work as form and at the same time they provide the building with a touch of relieving humour.

Architects: Rever og Drage
Location: Bjorset, Molde, Norway
Design Team: Eirik Lilledrange, Martin Beverfjord, Tom Auger
Area: 20 sqm

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House N by Maxwan

Dutch studio Maxwan has renovated a thatched house in the seaside town of Noordwijk in the Netherlands and added concrete and glass protrusions to the front and back (+ slideshow).

House N by Maxwan

Named House N, the residence dates back to the 1930s and had become run down over the years, so Maxwan was brought in to repair the existing structure and create more room on the ground floor.

House N by Maxwan

The architects added two extensions to the house. The first is a precast concrete block that stretches the kitchen out beyond the facade, while the second is a glazed box at the rear that extends the living room into the garden.

House N by Maxwan

“We wanted the extension of the kitchen to read as one monolithic object, almost like a sculpture or a piece of street furniture,” Maxwan’s Jason Hilgefort told Dezeen.

House N by Maxwan

Strips of glazing across the roof of each extension create a visible separation between the old and new structures.

House N by Maxwan

To create a new route up to the second-floor attic, the architects installed a spiral staircase with a custom-designed filigree balustrade.

House N by Maxwan

“This historic lace-like pattern traditionally would have to be repeated to be formed, but this was fabricated with a metal laser cutter,” explained Hilgefort. “Therefore, the pattern could do things traditionally not possible, which is why we chose to warp it in places.”

House N by Maxwan

“An additional feature of the lace pattern is that it is structural. This is why the pattern is more dense at the tread level, but has a more open transparency along the handrail.”

House N by Maxwan

Bedrooms, bathrooms and the basement in the house are also renovated, plus the thatched roof is restored.

House N by Maxwan

Other residential extensions completed in the last year include a barrel-vaulted addition to an English farmhouse and a dark brick extension to a red brick house in France. See more house extensions on Dezeen.

House N by Maxwan

Photography is by Filip Dujardin.

House N by Maxwan

Here’s a project description from Maxwan:


House N
Extension to a seaside villa
Noordwijk, 2012

Built in 1938, this Noordwijk seaside villa was originally the holiday home of a concrete factory owner. Battered and blustered by the salty sea weather over the decades, the house was in need of renovation.

House N by Maxwan

Besides roof replacement and basement repairs, the bedrooms, bathrooms and windows were outdated and some spaces had grown too small for the clients’ requirements. Maxwan’s additions bring new distinctive features to the house, while respecting its original character.

House N by Maxwan

Extending into the back garden with floor-to-ceiling glass on three sides is the new living room, which maximizes light and views from among the treetops towards the garden and further out to the sea.

House N by Maxwan

In the opposite direction stretches the new kitchen, incorporated in a single precast concrete block. Its color contrasts to the existing house while harmonizing with the surroundings.

House N by Maxwan

Both extensions of the new kitchen and living room are clearly separated from the existing structure with glass slits, through which the sky dramatically bursts.

House N by Maxwan

The bespoke spiral staircase connecting the uppermost levels elegantly uses the balustrade to support the treads, with the laser-cut pattern blending from closed to open for structural efficiency and recalling the breaking waves. The attic is given a new lease of life by new multi-functional wall furniture and large windows.

House N by Maxwan

In addition to these major components, the entire house is renewed in a manner complementary to the original house.

House N by Maxwan

Above: concept diagram – click for larger image

Client: private
Country: Netherlands
City: Noordwijk
Scale: S
Team leader: Rene Sangers
Partner in charge: Hiroki Matsuura
Team: Anna Borzyszkowska, Larraine Henning, Jason Hilgefort, Claudia Strahl
Collaborators: F. Wiggers – Varsseveld (structural engineer)

House N by Maxwan

Above: site plan – click for larger image

House N by Maxwan

Above: ground floor plan – click for larger image

House N by Maxwan

Above: first floor plan – click for larger image

House N by Maxwan

Above: second floor plan – click for larger image

House N by Maxwan

Above: cross section – click for larger image

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East London House by David Mikhail Architects

London studio David Mikhail Architects has renovated a nineteenth-century house in London and added a glazed kitchen and dining room at the rear (+ slideshow).

East London House by David Mikhail Architects

Recent additions and extra staircases were removed to make room for the new rear extension: a larch-framed glass box that stretches along the rear elevation to create an open-plan kitchen and dining room at the lowest ground floor level. This room is double-height on one side to accommodate a staircase and mezzanine library.

East London House by David Mikhail Architects

As well as using Siberian larch, the architects specified pale brickwork for both interior and exterior walls. Doors and windows are framed by chunky timber surrounds, while balustrades are made from bronze.

East London House by David Mikhail Architects

“These materials were all chosen to provide texture and scale and to achieve a domestic intimacy, which can so easily be lost with the tendency towards abstract planes and surfaces,” David Mikhail told Dezeen. “They also need to mediate between both the feel and the construction of the new and the older parts of the house, the inside and the outside.”

East London House by David Mikhail Architects

Other additions include a pivoting wall, which links the study with a billiard room, and a new landscaped garden comprising tiered patios and built-up planting areas.

East London House by David Mikhail Architects

The house was first constructed in the 1830s at three times the width of most London terraces, resulting in a later conversion into three separate residences. David Mikhail Architects’ job was to restore the original logic of the building so that it could again be used as a single family home.

East London House by David Mikhail Architects

The architects tracked down early photographs of the building and consulted other architects that had worked on the property in the 1980s to piece together plans of the original design and layout.

East London House by David Mikhail Architects

In front of the library is the original grand staircase, which winds up between the upper ground floor and first floor of the house. Previously there were no corridors beside this stair, but now residents can walk around it to reach the new rooms beyond.

East London House by David Mikhail Architects

One of these corridors leads through to a study in the north-east corner of the building. The architects extended this space to add an extra metre in length, creating a top-lit window seat beneath a large skylight. This extension also increased the size of a living room underneath.

East London House by David Mikhail Architects

“Our philosophy was to give the building back its dignity as a single house, and to be mindful of the likely original plan form,” David Mikhail told Dezeen. “But to combine original features with modern details is a question of both philosophy and detail; it needs an absorption in both to work.”

East London House by David Mikhail Architects

David Mikhail launched his studio in 1992. Other residential projects in London by the practice include a set of houses with triangular skylights and an extension that is just one metre wide.

East London House by David Mikhail Architects

See more residential extensions on Dezeen, including a barrel-vaulted addition to a farmhouse.

East London House by David Mikhail Architects

Photography is by Tim Crocker.

East London House by David Mikhail Architects

Here’s some more information from David Mikhail Architects:


East London House

Introduction

The East London House is the principle house of a picturesque development built in the 1830s and Grade 2 Listed. At 16m, it is the width of three typical London houses. The original house had been subdivided into three units, with an uneasy relationship to the garden. A glass conservatory to the rear gave the only rear access via an internal spiral staircase. These multiple alterations over time changed what was once a grand home into a jumble of dark, disconnected rooms, with no meaningful access to the large garden.

East London House by David Mikhail Architects

Client brief

This was to re-establish the elegance of the original, whilst removing the feeling of their being separate dwellings. At the same time, to inject a fresh, modern feel, maximising natural light and harnessing the potential of a large rear garden. The clients have children and other family members often stay. They had several ideas about how the house could function, but guidance was sought on how to connect the various levels and to make sense of the warren of rooms and staircases.

East London House by David Mikhail Architects

Spatial Strategies

Spatial remodelling has focused on the rear, the basement and the attic. The garden has also been designed by David Mikhail Architects (with planting by Jane Brockbank) and is the other major addition to the building. Much of the remainder of the work was about meticulously restoring the original, with recent works such as staircases and extensions removed. Upper ground and first floors were refurbished to respect the original. For example, one wall has been rebuilt on the upper ground floor to concord with the original plan form, making resultantly smaller, but more usable rooms. (Study/Billiards rooms). The basement and rear garden were excavated to give level access and a sense of openness to the landscape while the gentle terracing of the garden avoids the sense of being underground. The garden forms two spaces, a formal walled garden with water features and raised beds, and beyond it a rougher area for play, with garden sheds and turf.

East London House by David Mikhail Architects

Upon entering the house the original sweeping staircase is now presented in its original form, with the entrance hallway fully restored. Originally there were no views through beyond the stair, and no real connection to the garden, but now the stair hall is a prelude to the main event. Moving forward either side of the stair, you pass through the rear wall of the main house into a naturally lit double-height library with views to the garden and a bronze staircase down to the dining area. We were keen that this journey from the old to the new was explicitly experienced. The extension itself is a modern open-plan kitchen and dining space giving full views of the garden, with the junction between old and new highlighted through the use of linear flat roof lights.

East London House by David Mikhail Architects

Planning constraints

Although many original-styled features were present, some were later additions. Unfortunately, many records had been lost. We tracked down the local architects that had worked on the terrace in the 1980s and also used images from the Metropolitan Archive. We were able to use their records to form an understanding of where original details lay, and presented this knowledge to planners in the form of a room-by-room analysis. The extension was designed to clearly differentiate the new from the old, making our own works legible in the future. Even so, the design challenge of such a strategy is to do so in a way that resonates with the scale and sensibility of the original.

East London House by David Mikhail Architects

Materials and construction

The rear-half of the basement and rear garden was excavated and underpinned to increase head height and accessibility. The extension is a predominately timber and steel structure. Where two-storey, steel gives way to posts and beams of laminated Larch, forming a timber portal frame. The engineering required to achieve such a thin library floor was challenging.

East London House by David Mikhail Architects

All the timber used in the project is a white-oiled Siberian Larch, including the bespoke sliding doors designed by the architects, the floors the joinery and the external cladding. A white brick with light-grey lime mortar is used inside and out. Metalwork and ironmongery is bronze. A specialist precision metalwork company, where joints are glued rather than welded, constructed the fine bronze stair.

East London House by David Mikhail Architects

Above: basement floor plan – click for larger image

East London House by David Mikhail Architects

Above: ground floor plan – click for larger image

East London House by David Mikhail Architects

Above: first floor plan – click for larger image

East London House by David Mikhail Architects

Above: second floor plan – click for larger image

East London House by David Mikhail Architects

Above: third floor plan – click for larger image

East London House by David Mikhail Architects

Above: cross-section – click for larger image

East London House by David Mikhail Architects

Above: rear elevation – click for larger image

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Hawthbush extension by Mole Architects

UK firm Mole Architects extended a protected farmhouse in south-east England by adding an extension with a barrel-vaulted roof that references local agricultural buildings (+ slideshow).

Hawthbush by Mole Architects

Located in the High Weald area of the Sussex Downs, the Hawthbush extension replaced several earlier additions constructed in the 1970s.

Hawthbush by Mole Architects

The new structure was placed at an angle to the existing house and visually separated from it by a glass link to replicate the layout of traditional local farmsteads, according to recent research carried out using historical maps of the area.

Associating the design with this research allowed them to gain planning permission where previous proposals had failed. This apparent separation also helps to reduce the scale of the additional volume, giving prominence to the original house.

Hawthbush by Mole Architects

When briefing Mole Architects, one of their clients presented the designers with a pot instead of a room schedule, underlining their wish to gain “a beautifully finished object carefully made from ‘natural’ materials”.

Hawthbush by Mole Architects

A coated steel roof arches over courses of bricks reclaimed from a nearby farmhouse, reinterpreting the barrelled structural language of local agricultural buildings.

Hawthbush by Mole Architects

The concave ceiling that results from the unusually shaped roof is emphasised by internal horizontal cladding, directing attention towards a semi-circular window at the end of the master bedroom on the first floor.

Hawthbush by Mole Architects

Whilst the bedroom’s picture window frames the sunrise, the kitchen on the ground floor benefits from the skewed angle of the extension, which orientates the kitchen on the ground floor towards the south so it’s flooded with sunlight during the day. The kitchen can be opened up to the garden with timber-framed glass doors that concertina out onto the patio.

Hawthbush by Mole Architects

This ongoing project also includes spatial reorganisation of the interior of the old farmhouse as well as a sustainable development strategy that affects a broader collection of buildings in the farmyard.

Hawthbush by Mole Architects

Hawthbush farmhouse extension was shortlisted for AJ Small Projects award 2013, which was won by Laura Dewe Mathews for her Gingerbread House. The Forest Pond House folly by TDO was also nominated for this award.

Hawthbush by Mole Architects

Other projects by Mole Architects include a refurbishment of a 1960s bungalow in Cambridgeshire and a house set within the Suffolk dunes designed in collabouration with Jarmund/Vigsnæs Architects.

Hawthbush by Mole Architects

Photography is by David Butler.

Here’s some more information from Mole Architects:


In place of an existing 70’s extension, the clients required an extension that was sympathetic to the integrity of the original Grade II listed 17th century farmhouse, but which provided additional space and a spacious kitchen diner with lots of glazing providing views out. They weren’t keen on creating a ‘radical’ ultra-modern extension but did want to avoid a pastiche of the old. They wanted a modern space with ‘good flow,’ ideal for a growing family and a practical addition to a working farm.

They identified an appreciation for natural materials – wood cladding, glass, lead, copper and definitely wanted sustainability. When asked to produce a list of rooms Lisa (one of the clients) instead presented MOLE with a pot she had made, saying, “I don’t know what I mean by it, but there’s something about this pot that conveys what I feel about the extension.”

Hawthbush by Mole Architects

Above: site plan

Planning Constraints

The scheme is located in the within the Low Weald Area of Outstanding Natural Beauty, close the boundary of the High Wield. It won approval following a site history of refusals. The scheme was designed following research into the historic development of farmyards within the Weald – well documented/published by Forum Heritage Services for the Joint Advisory Committee of the High Weald AONB (JCA 122), based on 3500 farmstead sites analysed on historic maps.

Both High and Low Weald are characterised by high densities of isolated farmsteads, which comprise small scale groups of individual farmyard structures. These historic farmsteads are characterised by: ‘Loose Courtyards,’ ‘L-plans’ and ‘Dispursed Clusters.’.

Hawthbush by Mole Architects

Above: ground floor plan

JCA 122 notes that Dispersed Cluster is most prevalent in the High Weald, and the scheme adopts this formal pattern. The extension is designed to be redolent of an agricultural building adjacent to the farmhouse. This form decreases the extension’s apparent scale, allowing greater prominence to the farmhouse. Two meetings held at pre-application stage with planners from Wealden District Council, suggested that further thought/background was required on the location of the extension, and relationship to existing house.

These comments were considered and alternative locations tested in CAD model form and discussed at a further meeting, during which it was agreed that the logic of the original location was acceptable, and difficulties in the revised location (in terms of sunlight penetration and incorporation into the plan) made it less feasible.

Hawthbush by Mole Architects

Above: first floor plan

Materials & Methods of Construction

Attached while visually separated from the existing farmhouse, the extension provides a contemporary reinterpretation of local farmsteads. It is constructed from reclaimed brick from a nearby farmhouse, with a glulam timber frame barrel-vaulted roof structure covered in terne-coated steel.

Hawthbush by Mole Architects

Above: long section

A glass link provides access into the farmhouse while giving breathing space to the new extension. The ground floor of the extension contains a generous south-facing family kitchen and above, a master bedroom enjoys the vault. Alongside other alterations carried out by the client to the existing house, including a revised entry for a more accessible drop off, the extension helps make the original building function better as a family home. Ultimately, the overall plan, including the extension, makes use of the site, the sun, the revised entry, and organises the house better.

Hawthbush by Mole Architects

Above: short section

The clients project managed construction and the extension forms part of a broader ongoing sustainable development strategy organised across the larger collection of buildings that make up Hawthbush farmyard. While this strategy is not part of the project £220K budget, it is worth noting as it forms the framework within which the project sits.

Hawthbush by Mole Architects

Above: southern elevation

This strategy includes a 50KW woodchip boiler, 10KW array of solar PV, MHRV system and a borehole for house water. The Client ensured all hardcore was provided on site and all soil disposal dealt with on site. The solar PV and boiler fuelled by woodchip generated on-site and installed by the client as part of the larger strategy generate all electrical and heating requirements for the house and extension.

Hawthbush by Mole Architects

Above: northern elevation

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