This south London house extension by Studio Octopi features a pre-cast concrete staircase that had to be craned into position.
More about Pre-cast concrete staircase forms centrepiece of basement extension by Studio Octopi
This plant-covered extension to a bungalow in Miami is supported by a spiral concrete core that was precisely calibrated to match the sun's path at the height of summer. More about Christian Wassmann uses sun's path to shape Miami bungalow extension
To build their own home in the Massachusetts town of Brookline, the principals of Spanish firm Ensamble Studio prefabricated individual parts of the structure in Madrid and sailed them across the Atlantic to be assembled on site. More about Parking garage extension forms home for architects Ensamble
Working within a limited budget, Israeli interior designer Eliat Dar has renovated and extended a small 60-year-old Jaffa apartment using affordable materials and built-in furniture. More about Glass wall separates kitchen and bathroom in renovated Jaffa apartment
This extension to the roof of a Brussels apartment block by local studio Notan Office features a fireplace that takes its cues from the work of modernist architect and designer Alvar Aalto. More about Alvar Aalto inspires orange blockwork fireplace in Notan Office's Brussels roof extension
Atelier Pierre Thibault has restored and enlarged an early 19th-century home in Montreal, creating two separate libraries and a writing studio overlooking a river. More about Atelier Pierre Thibault expands historic Montreal home to create writer's studio
Austin-based architect Tom Hurt has extended the back of a ranch house using a series of stacked units and wooden interiors to form a multi-storey living space. More about Tom Hurt attaches tiered white pods with plywood core to Austin house
Brooklyn-based Office of Architecture has completely gutted and expanded a local row house for an architect, jewellery designer and their two children. More about Office of Architecture includes rooftop bedroom suite in Brooklyn row house overhaul
A climbing wall, a study and a bedroom are all contained within this Brisbane house extension, designed by Phorm Architecture + Design to be reminiscent of a treehouse. More about Extremely pointed garden room features a treehouse-like design and a climbing wall
Skylights helps to bring daylight into all three levels of this Porto townhouse, which has been refurbished and extended by local studio Pablo Pita Architects. More about Casa Boavista is a renovated Porto townhouse featuring three skylights
A large sliding window set into the end wall of this extension to a terraced house in Dublin by Irish practice Architectural Farm is enclosed within a wooden frame that provides internal and external seating. More about Recessed window creates bench between lounge and garden in Dublin house extension
Floor-to-ceiling windows allow guests to wake up to views of the Dolomites at this complex of copper-clad holiday apartments in northern Italy by Plasma Studio. More about Plasma Studio's copper-clad apartment block has huge windows facing the Dolomites
US firm Jensen Architects has revamped a Victorian home in San Francisco with perforated aluminium panels across the back and minimalist interiors to match. More about Jensen Architects adds contemporary rear facade and pared-down interiors to historic San Francisco house
New York firm EL Studio has placed a contemporary box-shaped extension on top of this suburban home in Maryland to more than double its size. More about Cuboid extension by EL Studio sits atop a Maryland bungalow
Located near Dublin's docklands, this three-storey Georgian terraced house has been converted from three bed-sits into one light-filled "upside-down house" with a charred-larch extension at the back. More about Scullion Architects adds charred-larch tower to terraced home in Dublin
This moody Melbourne house extension by local studio Branch Studio Architects features dark rammed-charcoal walls, window nooks and an outdoor bathtub. More about Branch Studio uses rammed earth to build Melbourne house extension
British studio Guarnieri Architects has added a glazed box containing a swimming pool, hot tub and steam room to the rear of a Victorian terrace in Clapham Common, south London. More about Glass box defines extension with basement pool for Victorian home in south London
A pair of interlocking volumes clad in pale brick and fronted by large, frameless windows extend the rear of this Victorian house in west London, which has been overhauled by McLaren Excell. More about McLaren Excell adds contrasting pale brick extension to black-painted Victorian house
London studio Amin Taha Architects has updated a 1950s terraced house in the city's Bayswater neighbourhood, adding a basement level topped with a rugged concrete soffit and a lightwell set into a courtyard garden. More about Amin Taha Architects reconfigures London home around lightwells and a spiral staircase
Architecture studio Bergmeisterwolf has completed an extension to a house on the shores of Italy's Lake Garda, featuring glazed walls that disappear into the ground to open the living area up to the garden. More about Vertically sliding walls open Bergmeisterwolf's Italian villa extension to the garden