Une Maison sur la Maison by THE Architectes
A mysterious black gable frames two new bedrooms on the roof of a house in the outskirts of Paris. More
A mysterious black gable frames two new bedrooms on the roof of a house in the outskirts of Paris. More
London architects Liddicoat & Goldhill added an extension to a south London home with an oak-screened staircase and double-height windows. More
Austrian architects Atelier Thomas Pucher built a glass box and courtyard onto this house in Graz to bring the family's living space outdoors (+ slideshow). More
A chunky bay window protrudes from this timber-clad addition to a house in Ontario by Canadian studio The Practice of Everyday Design (+ slideshow). More
Belgian studio EXAR Architecture have replaced walls of brick and plaster with glass and Corten steel on this extension to a suburban house outside Brussels. More
Slovenian studio OFIS Arhitekti have added a bleached larch extension onto the side of a 1930s house in Ljubljana designed by modernist architect Josip Costaperaria. More
Patchy timber shields the glazed upper storeys of this extension to a historic town hall in southern Spain by architects Viar Estudio. More
Designed in Hackney: it's week four in our celebration of design from the London borough of Hackney and today's featured project is a modest glass extension to a house in Dalston by Shoreditch-based architects Platform 5. More
Slideshow: the faceted copper envelope of this house extension near Sydney was designed by architects Innovarchi to resemble a roof. More
Slideshow: German architects Schneider+Schumacher have completed an underground gallery that creates a bulge beneath the lawn of the Staedel Museum in Frankfurt. More
The two storeys that London architects Project Orange have added to the roof of a redundant brick warehouse in Sheffield look like another building stacked on top. More
A 1960’s bungalow in Cambridgeshire is hidden behind a Siberian larch-clad extension with a row of gabled roofs. More
English architects Designscape have reversed the orientation of a country house in Bath by adding a prominent glazed entrance to its rear. More
A single-storey studio at the bottom of the garden of a semi-detached house in London creates a separation between work and domestic life for its residents. More
London architects Gundry & Ducker have added a blackened larch extension onto the rear of a Victorian terrace in south London. More
Climbing plants grow in the recesses of this mysterious steel fence, which conceals the entrance to a renovated coach house in north London. More
Innsbruck architect Daniel Fügenschuh has completed a concrete and glass extension to a school at a former monastery in Rattenberg, Tyrol. More
A frameless sheet of glass undulates around this barrel-vaulted conservatory in west London. More
Architect Renzo Piano has completed a new wing at the Isabella Stewart Gardner Museum in Boston, which opens next week. More
Cavernous holes in the courtyard of three museum buildings in Graz, Austria, lead underground into a new, shared entrance by Spanish architects Nieto Sobejano and local firm eep architekten (photographs by Roland Halbe). More