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
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
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
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
Architect Adam Kane 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
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
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
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
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
A plywood box hosts the kitchen and staircase in this minimal maisonette in Islington, which has been reconfigured and extended by local architect Larissa Johnston. More
Inbetween Architecture's founder John Liu added this gabled extension to his home in suburban Melbourne, creating a new entrance that leads straight through to a garden at the rear. More
Coarse concrete walls contrast transparent glazing in this extension designed by Paul Archer Design to create a light-filled kitchen and dining room for a north London house. More
Slats of larch dress this angular addition to a Victorian property in Dalston, which was built for a young family and is shortlisted in 2017's Don't Move, Improve! competition for best London house extension. More
Canadian firm Naturehumaine has renovated and extended a 1920s residential building in Montreal, adding a white-clad upper level to the old brick structure. More
Californian firm AJ-A has extended an adobe brick residence from the 1940s, contrasting the rustic material with pared-down finishes and minimalist geometry. More
Black zinc cladding and a sinuous staircase feature in the renovation and expansion of an urban masonry building by New York studio Young Projects. More
Architecture for London has created a pair of contrasting extensions for adjoining houses in east London, using pale brick for one and dark slate for the other. More
One wall of this petite extension to a Lisbon apartment by RCJV Arquitectos is made entirely from glass – providing its owners with views of the courtyard gardens below. More
Warc Studio has reinterpreted the typical lean-to extensions of many Melbourne houses with this timber and glass addition to a home in the city's Oakleigh suburb. More
Studio 1 Architects has added a brick extension with a large window to the rear of this Victorian house in London, creating a light-filled seating area lined in white-washed ash slats. More