該住宅位於倫敦市中心的一棟雙層建築內，設有兩間臥室。由於業主夫婦有了第二個孩子，因此需要更多的居住空間。礙於購買三居室的昂貴价格，他們決定研究如何在現有的房子裡創造更多的空間。
The clients owned the existing two-storey, two-bedroom property, located on a central London Housing Estate. With a second baby on the way, they needed more space. Priced out of three-bedroom properties in the area they decided to investigate what could be done to create more space in their existing home.
▼住宅外觀，exterior view ©French + Tye
該住宅區與其他地段有所不同，無法獲得加建單層閣樓的許可。業主提出的規劃申請遭到了兩次拒絕：擴建後的建築高度不允許超過現有屋頂的最高點。
The challenge with this property, unlike others on the estate, they were unable to secure planning permission for a single-storey loft extension. They received two planning refusals since they were not permitted to build any higher than the highest point of the existing roof, due to its lower profile.
▼一層起居空間，first floor living area ©French + Tye
設計師為此採取了“連鎖拼接”的方法，在“一層半”的高度上創造了兩個互鎖的樓層。儘管增加的面積並不多，但通過創造性的使用方法，一間新的臥室被打造出來，同時既有房屋也獲得了更多的空間。
We approached the design as an interlocking jigsaw. We knew the half-height of the loft was fixed so the design was all about creating two interlocking floor levels in the space of one and a half floors. We may have given less footprint, but we created more volume and an additional bedroom by using it creatively.
▼設計示意圖 – 剖面，original design – section ©Bradley Van Der Straeten
整個設計的關鍵在於將下層臥室的天頂用作上層臥室擺放床鋪的平臺，並通過對屋頂窗戶的巧妙利用使該空間變得寬敞而明亮。內嵌式的床架可以留出更多交通空間。所有的新舊空間通過膠合板統一起來，並且巧妙地隱藏了大量的儲物空間。
▼新的閣樓臥室，the new loft bedroom ©French + Tye
▼通過對屋頂窗戶的巧妙利用使二層臥室變得寬敞而明亮，the bedroom above is spacious and light due to the effective use of roof windows ©French + Tye
▼光的層次，layers of light ©French + Tye
▼牆上的擱板，shallow shelving ©French + Tye
The whole design of the project hinged on using the ceiling of the bedroom below as a bed platform for the bedroom above, which is spacious and light due to the effective use of roof windows. Integrating the bedframe into the fabric of the design allowed space to be freed up for other things such as the communal circulation spaces. Plywood unifies all the new and old spaces and helps to conceal lots of clever storage spaces.
▼新舊空間通過膠合板統一起來，plywood unifies all the new and old spaces ©French + Tye
▼儲物空間，storage spaces ©French + Tye
對細部的毫釐必爭保證了最大的天花板高度，具體做法包括將天花板內的結構性木材裸露出來，並使用真空隔熱板來限制地板和屋頂的深度。
Close attention to millimetre detail ensured ceiling heights could be maximised, which included exposing structural timbers in the ceilings and using vacuum insulation panels to limit floor and roof depths.
▼主臥室，master bedroom ©French + Tye
業主對於最終的結果感到十分滿意，尤其是他們可以從一層的走廊窗戶直接看見孩子們在新閣樓臥室裡玩耍的樣子。
The clients are delighted with their new house and love being able to see their eldest son playing in his new loft bedroom from the hallway window on the first floor, thanks to the split levels.
▼孩子們的理想空間，a perfect space for the kids ©French + Tye
▼交通空間，circulation space ©French + Tye
▼一層平面圖，first floor plan ©Bradley Van Der Straeten
▼二層平面圖，second floor plan ©Bradley Van Der Straeten
▼剖面圖，section ©Bradley Van Der Straeten
DetailsProject size: 98 m2Site size: 125 m2Project Budget: $110000Completion date: 2019Building levels: 2Project team: Tiny orange social media square Bradley Van Der Straeten
Photo credit: French + Tye
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