项目说明 | Project Description
The house is built on an abandoned farm overlooking the Luberon valley, a protected regional park with strict guidelines imposing traditional building materials. The ruins of the farmhouses were preserved so as to frame the new house, while the guesthouse and pool where inserted within the existing stone walls.
▼住宅远景，新旧墙体相结合，distant view of the house with the combination of the old and new walls ©Herv Abbadie
住宅的主体量是用尺寸为50 x 50 x 200厘米的坚固的砂岩砌块建造而成的。这些砂岩均来自于加德桥（Pont du Gard）旁的采石场，开采于罗马时期。砌块的堆砌原理十分随性，既可以交错着堆叠，也可以倾斜着排列，从而形成门窗洞口和表面纹理。由砌块打造而成的厚墙壁在热工学方面有着极大的优势：得益于其热质量，住宅不必设置额外的保温隔热层，即使是在炎热的夏季和飘雪的冬季，室内的环境也十分舒适。住宅的其他体量由混凝土或是落叶松木材打造而成，局部设置着镶嵌着木窗框三层玻璃窗户的大开间空间。住宅室内采用混凝土地板和桦木胶合板天花板，不做任何的额外装饰。
▼住宅外观，exterior view of the house ©Eric Laignel
▼住宅外观局部，采用木条饰面，partial exterior view of the house with wooden strips facade ©Herv Abbadie
The main house is built with solid sandstone blocks 50 x 50 x 200 centimetres, quarried next to the Pont du Gard, and extracted since Roman times. The building principle is almost childlike, giving freedom to stagger or skew the blocks to make openings or to give texture. The thick walls of the house also create thermal mass, breathe and do not require insulation, even in this area of hot summers and snowy winters. The rest of the house is either in concrete or larch wood, with large bays in triple-glazed timber frames. The interiors are left untreated, with concrete floors and birch plywood ceilings.
▼镶嵌着木窗框三层玻璃窗户的大开间空间，the large bays in triple-glazed timber frames ©Herv Abbadie
▼墙体细节，wall details ©Herv Abbadie (left), ©Carl Fredrik Svenstedt Architect (right)
The 200m2 main house is built as a large, shading roof straddling a dense bedroom wing. The glazed living room and open terraces under this roof maintain the transparency between the courtyard to the south, and the broad views down the valley to the north.
▼内庭院，起居室和餐厅体量拥有一个大型的遮光屋顶，the inner courtyard, the main house is built as a large, shading roof ©Herv Abbadie
▼大型屋顶下的用餐空间，the dining area under the large, shading roof ©Eric Laignel
▼起居室，采用玻璃立面，形成了南北向的通透视野，the glazed living room maintains the transparency from south to north ©Herv Abbadie
▼餐厅，the dining room ©Eric Laignel
▼餐厅墙体细节，wall details of the dining room ©Herv Abbadie
The open plan of the bedroom wing is structured by three distinct plywood volumes, like large crates integrating storage and wet spaces. Hidden sliding doors divide the space into bedrooms and bathrooms depending on occupancy.
▼由胶合板围合而成的卧室，the bedroom made of plywood ©Eric Laignel
▼由交错的石墙限定而成的客房体量，设有一个小院字，the guesthouse defined by staggered stone walls with a small yard ©Eric Laignel
A timber garage completes the square plan of the main house, and frames the narrow entry passage along the ruins that also leads to the 35m2 guesthouse, with its staggered stone wall. The linear concrete pool at the end of the passage is built into the ruins, such that one swims inside the old walls. The existing stone walls have proved to be rather fragile, filled with clay in their center, and mostly built without foundations. What walls could be saved were partially regrouted and sealed from above in order to avoid water damage. The pool within the walls of one of the old buildings was also therefore built as a separate, inserted concrete volume, stabilising the existing ruins.
▼建在断壁残垣中的线性混凝土泳池，the linear concrete pool built into the ruins ©Herv Abbadie
技术性说明 | Technical Description
The house is built of concrete, larch-wood, triple-glazed pine windows, flat concrete and pitched tiled roofs. The material that stands out the most however is of course stone: the existing ruined walls of small stone and the new walls of solid blocks. For the stone house, the building code required using “stone-coloured” materials, and so it became evident that using real stone would be a much more pertinent solution. The Vers limestone is easy to extract and under-appreciated locally, so using large blocks also turned out to be financially viable.
▼项目石材，the stone used in the project ©Carl Fredrik Svenstedt Architect
The main issue for the house proved to be the poor soil for the foundations. The house is on a hill made largely of clay, which has a tendency to expand and contract depending on humidity and rain. This ground movement is particularly harmful to building foundations, perhaps explaining the fact that the existing stone walls were largely in ruins. The new house therefore sits on three-meter deep “massifs”, or thick pilings, and ground beams that anchor it to the slope. A floated concrete plate for the flooring avoids any potential buckling from soil movement. As this is a seismic area, the engineers integrated concrete anchor columns into the walls. Although considered unnecessary by the masons, these columns were simply poured into hollowed forms in the stone filled with steel reinforcements, thereby tying the walls to the foundations.
▼项目地基，the base of the project ©Carl Fredrik Svenstedt Architect
Recent statistics have suggested that the stone has poor insulating properties, which remain to be seen on the ground. Nevertheless, as a precautionary measure a 10 centimetre gap was designed into the project along the inside of the few exposed stone walls, should the client find necessary to add interior insulation.
▼施工过程，the construction process ©Carl Fredrik Svenstedt Architect
▼总平面图，site plan ©Carl Fredrik Svenstedt Architect
▼平面图，floor plan ©Carl Fredrik Svenstedt Architect
▼剖面图，sections ©Carl Fredrik Svenstedt Architect
▼构造细节，details ©Carl Fredrik Svenstedt Architect
Project Title: STONE HOUSE
Project Address: Saint-Philibert , 84400 VILLARS, FRANCE
Design period : 1 year and a half
Construction period: 9 months
Clients: M. et Mme Ryding
Architects: Carl Fredrik Svenstedt
Project team: Carl Fredrik Svenstedt, Tae In Kim
Structural engineers: Beccamel Mallard
Building general contractor: Les compagnons du Barroux
Stone materials employed (Type, name, and quarry region) Exteriors: Pierre du Gard stone from Vers, near the Pont du Gard
Stone suppliers (Firms): Pro’Roch