A sliver of glazing stretches all the way up from the ground to the roof of this extension to a west London house, which is named The Lantern in reference to the way it glows at night (+ slideshow). More
This extension to a home in Kortrijk, Belgium, was added by local architect Steven Vandenborre to wrap around the property's outdoor swimming pool (+ slideshow). More
A cluster of glass pavilions positioned around the base of this existing Melbourne house open onto terraces that are sheltered by a copper-edged canopy (+ slideshow). More
Pre-rusted steel clads this L-shaped extension to a farmhouse in rural Canada, giving the block a burnt orange colouring that complements the red brickwork of its neighbour (+ slideshow). More
This concrete pod with faceted sides and a glass facade is perched up over a courtyard, creating an extension to a house in Mexico that doesn't compromise its existing outdoor spaces (+ slideshow). More
Melbourne studio Make Architecture has renovated a red brick bungalow outside the city, adding an extension featuring a decorative timber facade that references brickwork patterns (+ slideshow). More
This London house extension features a red brick exterior thought to look like a profile of a fox and a multi-hued interior that references Adolf Loos' Modernist houses of the 1920s (+ slideshow). More
The sloping roofline of an old extension to a London residence is surrounded by the pale brickwork of its replacement, designed by local studio Tsuruta Architects (+ slideshow). More
This blackened plywood box added by architect Antonin Ziegler to one end of a rural home on France's northern coast provides a private library and garage for its inhabitants (+ slideshow). More
A sloped section of roof joins this timber-clad extension by Melbourne studio Julie Firkin Architects to the adjacent weatherboard house (+ slideshow). More
Slender batons of untreated larch cover two extensions erected in the garden of this semi-detached home in London, as part of a refurbishment and remodelling by architecture studio Haptic (+ slideshow). More
A cylindrical tower clad in weathered steel forms part of this extension to a 19th-century stone cottage in the English countryside, designed to recall a gasworks that previously stood on the site. More
The residents of a house in Melbourne have allowed architect Andrew Maynard to reveal their living spaces to passers-by, with a timber-framed extension that slots into the perimeter fence (+ slideshow). More
A living room is contained within this glazed extension to a period property in Dublin, forming a transparent connection between the existing building and its garden. More
A small extension to the rear of this remodelled townhouse in Dublin is clad and roofed in panels of opaque black glass, designed by architectural studio Ailtireacht to reflect the building's surroundings. More
Australian studio Mihaly Slocombe has returned to a Melbourne home it completed almost a decade ago to add a timber nursery annex patterned with circular cutouts (+ slideshow). More
This red-painted timber-clad extension was added to the rear of an old stone farmhouse in Portugal, framing a new courtyard at the centre of the family home (+ slideshow). More
This extension to a Victorian house in London features a decorative wooden ceiling, exposed brickwork and a dining space that opens out to a garden filled with bushy plants (+ slideshow). More
A triangular lightwell covered in scale-like shingles extends from the roof of this living room that architect Nuno Melo Sousa has added to a house in Penafiel, Portugal (+ slideshow). More
Irish studio NOJI Architects experimented with plywood to create the three different kinds of structure that frame this extension to a terraced house in Dublin. More