Architect Simon Astridge employed a varied material palette of plywood, concrete, brick and stone to create this extension to a Victorian terraced house in London (+ movie). More about Simon Astridge opts for a variety of raw materials in Balham House extension
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 about High-level windows funnel daylight into Skylight House extension by Andrew Burges
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 about ADN Architectures adds V-shaped extension to Brussels bungalow
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 about Suppose Design Office adds double-height dining room to House in Chiba
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 about Glazing disappears into the walls of Tigg Coll's Malbrook Road extension
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 about Doyle Gardens extension by Jonathan Tuckey features a criss-crossing wooden ceiling
After 15 years of incremental work, architect Niall McLaughlin has restored and extended a London house with a subterranean gallery (+ slideshow). More about Niall McLaughlin extends Duncan Terrace house with translucent passageway and gallery
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 about Wildfowl Cottage extension by 5th Studio is clad with shingles and raised over a flood plain
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 about Punctured wall separates old from new at Westgarth House by Kennedy Nolan
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 about Donal Colfer Architects adds concrete and glass extension to Dublin residence
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 about B.E. Architecture designs Sydney house extension around mature gum tree
A thin metal staircase provides access to the renovated attic space of this house in Belgium by Kortrijk design studio Five AM (+ slideshow). More about Delicate staircase leads to Isle of Water attic extension by Five AM
News: Swiss office Fruehauf Henry & Viladoms has been selected ahead of Kengo Kuma, Bernard Tschumi and Studio Mumbai to envision a new wing for the Musée du Léman on the edge of Lake Geneva (+ slideshow). More about Musée du Léman unveils extension proposal featuring concrete walls and a rooftop lawn
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 about Concrete extends from the kitchen into the garden of Studio Gil's London house extension
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 about Robert Dye Architects extends a London mews house by pushing out a wall
Czech studio 3+1 Architekti has added a zigzagging wooden extension over old stone walls to turn a former agricultural barn into a woodwork training centre (+ slideshow). More about Serrated timber extension by 3+1 Architekti transforms stone barn into woodwork facility
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 about Angular windows create glass shards across Plasma Studio's Schäfer Roofscape
London firm Rogers Stirk Harbour + Partners has put the finishing touches to the World Conservation and Exhibitions Centre – a new £135 million wing at the British Museum in London (+ slideshow). More about Rogers Stirk Harbour + Partners completes new conservation and gallery wing at British Museum
A folded fabric canopy helps to shade the interior of this glazed extension to a nursery in Paris by local firm h2o Architectes (+ slideshow). More about Nursery extension by h2o Architectes enveloped by a folded fabric sunshade
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 about Victorian house renovation by Clare Cousins features a courtyard dining room