Skylights at the apex of a sloping roof project light onto the brick internal walls of this extension to a bungalow in Sydney, by local studio Andrew Burges Architects (+ slideshow) More
Belgian firm ADN Architectures gave this wooden house extension in Brussels a V-shaped roofline that inverts the pointed gables of the existing property (+ slideshow). More
Japanese firm Suppose Design Office has replaced the roof of a 35-year-old family house, creating a lofty new living room that opens to the garden at both ends (+ slideshow). More
This London house extension by Tigg Coll Architects features sliding glass doors that retract into the brick walls to open the space up to the garden (+ slideshow). More
Jonathan Tuckey Design has refurbished the interior of a semi-detached house in London and added a dining room extension with a latticed wooden ceiling (+ slideshow). More
After 15 years of incremental work, architect Niall McLaughlin has restored and extended a London house with a subterranean gallery (+ slideshow). More
UK architecture firm 5th Studio has added a shingle-clad extension to a house in a listed former inn that is raised above the flood level of the River Cam in Cambridgeshire (+ slideshow). More
This house extension in Melbourne by local studio Kennedy Nolan Architects is separated from the rest of the Edwardian property by a wall with a circular hole that children can climb through (+ slideshow). More
Irish firm Donal Colfer Architects has renovated a Victorian terraced house in Dublin, adding an extension with a glazed ground floor and concrete mullions above (+ slideshow). More
The extension to this refurbished house in Australia includes a covered outdoor space built around the trunk of a large lemon-scented tree (+ slideshow). More
A timber-clad box frames a new living area added to the heart of this house in Winchester, England, by local firm AR Design Studio (+ slideshow). More
A thin metal staircase provides access to the renovated attic space of this house in Belgium by Kortrijk design studio Five AM (+ slideshow). More
Studio Gil used a combination of exposed concrete and reclaimed iroko wood to unite the interior of this extension to a Victorian terraced house in east London with its redeveloped garden. More
Robert Dye Architects has shifted the entire end wall of a mews house in London's Primrose Hill neighbourhood, as part of a renovation and extension designed to bring in more natural light (+ slideshow). More
Shards of glazing frame views of the distant mountains from the apartments inside this angular attic extension in northern Italy, designed by Plasma Studio (+ slideshow). More
Melbourne studio Clare Cousins Architects rearranged and extended a Victorian house in the city's St Kilda East district to create two wings for living and sleeping, either side of a dining space that opens out to the garden. More
Reflective stainless steel surfaces and a polished concrete floor brighten the interior of this extension to a terraced house in the Islington area of London by Architecture for London (+ slideshow). More
Recycled bricks, corrugated cladding and oak flooring were used to build this barn-inspired extension to a house in Melbourne by Australian studio Whiting Architects. More
This top-heavy house extension in Trondheim, Norway, was designed by local office TYIN Tegnestue to maximise space on the first floor while minimising its footprint on the garden (+ slideshow). More
Australian studio Wolveridge Architects ran a brickwork pathway through the inside and outside of this timber-clad extension to a house in Melbourne, using old bricks found in the garden (+ slideshow). More