California firm Edward Ogosta Architecture has dramatically transformed a corner-lot house into "an intimate pocket of luminosity, atmosphere, and serenity" in a local beach town. More about Edward Ogosta overhauls California bungalow with "clarity and restraint"
A loft library, a converted chapel and a Japanese-inspired flat are in the running to be named London's best home-improvement project of 2019. More about London's best new house extensions revealed in 2019 shortlist for Don't Move, Improve!
Merrett Houmøller Architects has renovated and extended a house in north London using a consistent palette of simple materials and repeated patterns. More about London townhouse updated with pared-back materials and patterns
Montreal firm Appareil Architecture has designed a stark extension for a home in the city, featuring facades and interiors that match the snowy landscape come winter. More about Appareil Architecture adds white dining annex to Waterloo Residence in Montreal
Fraher Architects has refurbished a terraced house in London's King's Cross, adding a rear extension clad in perforated black metal, and a metalwork staircase. More about Industrial setting informs robust palette of Fraher Architects' Signal House
Brazilian firm Studio MK27 has renovated and enlarged a house designed by its founding partner in the early 2000s, which features white surfaces and huge windows that open to the garden. More about Studio MK27 updates and expands Gama Issa house in São Paulo
Quebec City studios Hatem + D and Étienne Bernier have given a 20th-century residence a new life, by refurbishing the existing building and adding a small extension to the back yard. More about Black extension by Hatem + D and Étienne Bernier contrasts pale-brick Quebec City home
This extension to an Edwardian house in north London by Trewhela Williams features carefully detailed brick surfaces that extend from the exterior into a minimal kitchen and dining room. More about Trewhela Williams' Sinter House extension "celebrates the sculptural potential of brickwork"
Architecture firm Chen + Suchart Studio has added an art studio to a Phoenix area home, cladding the new building in large sheets of reflective glass and silver-hued weathering steel. More about The Little Art Studio by Chen + Suchart reflects desert landscape in Arizona
American studio Rowland + Broughton has overhauled a 1960s house in Aspen, Colorado, to offer occupants a better connection with the mountain landscape. More about Ridge House by Rowland + Broughton frames views of Rocky Mountains
Paz Arquitectura has extended a small cabin on the outskirts of Guatemala City, flanking the existing structure with two additional volumes connected by a terrace and a glass walkway. More about Paz Arquitectura expands Guatemala forest retreat with new living spaces and huge terrace
A steel grid containing 102 olive trees fronts this extension to a house in Bangkok, designed by locally based architecture office Anonym. More about Flower Cage House is a Bangkok home with a facade of olive trees
Atelier Pierre Thibault has created an addition to a 1950s residence in Canada, providing its occupants with a new living room, studio, and garage. More about Atelier Pierre Thibault extends ageing Montreal home with double-height living space
Massachusetts firm Maryann Thompson Architects has enlarged a shingle-style house by opening up its ground floor, and building two additions on the grassy coastal property. More about Maryann Thompson refurbishes and extends shingled Cove House in Martha's Vineyard
Architecture office Al-Jawad Pike used pigmented concrete blockwork for the exterior and interior of this two-storey extension to a Victorian house in south London. More about Al-Jawad Pike combines robust and affordable materials for extension to Peckham house
Architecture office Hutch Design has renovated and extended a mews house in north London, incorporating folding walls, mirrors and hidden storage to make the most of the compact space. More about Hutch Design reconfigures Hackney mews to create space-saving family home
American firm The Ranch Mine has overhauled and expanded a Phoenix residence, adding limestone cladding and generous terraces, and reorganising the home so it capitalises on views of the desert terrain. More about Red Rocks house by The Ranch Mine nestles into Arizona mountainside
Neumann Monson Architects has restored a 1850s farmhouse in Iowa, stripping away a series of poorly coordinated additions before updating it for the owners' "modern" lifestyle. More about Neumann Monson turns Iowa farmhouse from "dog's dinner" into liveable home
Edward Ogosta Architecture has renovated a 1940s house in California with light-filled white interiors and a master bedroom extension overlooking the garden. More about Edward Ogosta brightens Californian bungalow with Rear Window House extension
Local architecture studio Wowowa has renovated a Victorian house in Melbourne and added an extension with a scalloped brick facade that contains an open-plan living space. More about Wowowa adds fluted-brick extension to refurbished Melbourne house