Australian architecture firm Panovscott has overhauled a federation-era cottage in Sydney, adding a stacked extension onto the rear of the building with large picture windows that overlook the garden. More about Stacked windows face a 116-year-old tree in Panovscott's Sydney cottage extension
Inbetween Architecture has renovated and extended a dated brown-brick property in Melbourne's Doncaster suburb to improve the quality of its living spaces and capture views of nearby Ruffey Lake. More about Inbetween Architecture transforms "terribly dated" 1970s Melbourne house to open up lake views
During the renovation of this Montreal home, local firm L McComber Architects reinterpreted its mock-Tudor facades with an expansion that echoes the architectural style. More about L McComber Architects gives contemporary update to Tudor-style home in Montreal
San Francisco architecture firm Spiegel Aihara Workshop has extended a 1930s hillside residence by duplicating its layout and stacking it over the original structure, raising the home so it looks over the city's landmarks. More about SAW inserts variation of an old San Francisco home into its roof
Chilean architect Gonzalo Claro has renovated a family home in Santiago, reducing the ground floor footprint but adding a level for bedrooms. More about Gonzalo Claro hides rooftop extension of Chilean house behind dark waterproof membrane
Architecture firm Zeller & Moye has outfitted an old residence with a sprawling rooftop garden, serving as a getaway within a crowded neighbourhood in the Mexican capital. More about Verdant garden with white marble paths tops renovated Mexican home by Zeller & Moye
Chilean architect Felipe Alarcón Carreño has added an angled volume to the top of this small house in the city of Linares to raise the ceiling and create a brighter, more spacious interior. More about Protruding roof offers skyward views at renovated Chilean home by Felipe Alarcón Carreño
This extension to a 1930s bungalow in suburban Sydney features glass walls, protruding box windows and decorative brickwork that pays tribute to the building's heritage. More about Tribe Studio builds Sydney house extension featuring "brick sunburst"
Appareil Architecture entirely renovated this Montreal duplex to restore existing elements of the structure, extend the home with an additional floor, and bring more light to the interiors. More about Appareil Architecture combines two Montreal flats to create single-family home
Boston architecture firm NADAAA has remodelled a 1920s Washington DC residence by extending the attic, adding large windows, and using plywood sheets to arrange the internal layout. More about NADAAA overhauls brick house in Washington DC with ample glazing and a plywood interior
A spiralling steel staircase connects the living spaces inside this timber and glass extension to a semi-detached property in Hackney, north London. More about Steel-wrapped staircase winds through Hackney extension by Cousins & Cousins
Benn + Penna Architecture has renovated and extended a dilapidated terrace in Sydney's eastern suburbs, creating a new kitchen with a long counter that continues into a planted courtyard. More about Worktop extends from kitchen to garden in Sydney residence by Benn + Penna Architecture
Sydney architecture studio CO-AP has renovated and extended a typical suburban home in the Australian city, adding a two-storey concrete structure that opens onto a garden at the rear. More about CO-AP adds contemporary concrete and glass extension to Sydney home
Simon Astridge has used pigmented concrete to create the pink facade of this extension to a north London house, accenting the warm-toned colours found in the existing brick walls. More about Simon Astridge adds dusty-pink concrete extension to north London house
Lipton Plant Architects has updated a 1970s house in Berkshire, England, with a small two-storey extension, featuring a concealed brick-patterned door and windows with bright orange frames. More about Lipton Plant's Ugly House is a 1970s property with a black and orange extension
Adam Kane Architects has added a garage and painting studio to a house in the Australian state of Victoria, which features pitched corrugated-metal roofs, cement walls and pared-back interiors. More about Adam Kane Architects adds gabled art studio and gallery to Australian home
This home in the woods of Wisconsin was originally built as a single, open-plan volume by Salmela Architect, and subsequently extended on three occasions to fit its occupants needs. More about Salmela builds Wisconsin residence in four separate phases over time
Fed up with all the "McMansions" springing up along Australia's Great Ocean Road, Austin Maynard Architects has restored an old beach shack and built a second, elevated building alongside it. More about Glasshouse on stilts by Austin Maynard Architects extends Australian beach shack
The winner of 2017's Don't Move, Improve! awards has just been announced, so we're taking a moment to dwell on London house extensions. These 10 from Dezeen's Pinterest boards are our most pinned. More about 10 of the best London house extensions from Dezeen's Pinterest boards
A garden room containing a sunken Japanese-style bath has won top prize in a competition to find London's best new house extensions. More about Sunken Bath Project named London's best new house extension in Don't Move, Improve! 2017