A timber-lined loft renovation, a seven-square-metre extension and a triangular room feature among the 30 projects shortlisted in a competition to find London's best home extensions. More about London's best new house extensions revealed in Don't Move, Improve! 2018 shortlist
Foster + Partners has unveiled plans to add a glazed terminal building to Marseille Provence Airport, which will link the 1990s extension designed by Richard Rogers with the original 1960s building. More about Foster + Partners to add "missing piece" to Rogers' Marseille airport extension
Dutch firm UNStudio has unveiled plans for a "user-oriented" extension to its Kutaisi International Airport terminal in Georgia, featuring a rooftop plaza. More about UNStudio plans extension to Georgia airport just four years after completing it
The founder of MW Architects used black-blue engineering bricks to add an extension of just seven square metres to his renovated London home. More about Matthew Wood adds seven-square-metre extension to his small London home
Canadian architect Natalie Dionne has attached a geometric extension onto the back of a brick townhouse in Montreal, to include more space in the kitchen and a balcony for the master bedroom. More about Natalie Dionne extends Montreal residence using offset black boxes
Canadian studio Naturehumaine has extended a house in Montreal to create a family living area and an elevated master bedroom, which are all encased in a large grey frame that offers privacy from neighbours. More about Angular frame juts over Montreal house extension by Naturehumaine
Architect Curro Checa Romero has refurbished and extended a 1980s house in east London, more than doubling its interior dimensions and creating a series of light-filled spaces with an improved connection to the rear garden. More about Checa Romero Architects "makes the most" of small brick house by extending in every direction
Amsterdam studio Krft has updated and extended a museum and cultural complex in the Dutch town of Laren, adding a new brick-clad theatre and a glazed foyer wrapped in a "curtain" of slatted timber. More about Krft adds two-tone brick theatre to Singer Laren museum
This revamp of a family home in west London features a loft extension covered in scale-like wooden shingles, yellow-framed arch windows, and interiors that use colour to separate spaces for adults and children. More about Office S&M uses scale-like tiles and vibrant colours to add personality to London house
O'Sullivan Skoufoglou Architects has extended a typical terraced home in northwest London, by adding a new timber-lined room that opens onto a brick-paved garden. More about O'Sullivan Skoufoglou Architects adds "simple, warm and characterful" extension to London house
For the renovation of contemporary art gallery SITE Santa Fe, New York-based SHoP Architects has added a pair of pointed courtyards wrapped with diamond-patterned perforated aluminium. More about SHoP extends Santa Fe art gallery with folded aluminium corner
This new building added to a school in the English town of Beaconsfield by London architecture office DSDHA flanks a tree-lined playground and is clad in waney-edged timber to give it a natural appearance. More about School extension by DSDHA features rough-edged timber cladding and outdoor learning spaces
Architect Laura Dewe Mathews has added a staggered red brick extension to a London house, as part of a renovation that involved creating spaces for the clients' various hobbies. More about Laura Dewe Mathews creates spaces for birdwatching and painting in London home of a retired couple
This south London house extension by Studio Octopi features a pre-cast concrete staircase that had to be craned into position.
More about Pre-cast concrete staircase forms centrepiece of basement extension by Studio Octopi
Simon Conder Associates has placed a prefabricated, black-stained timber extension on top of a former warehouse in east London, creating a new home for the designers whose studio occupies the old building. More about Black House is a duplex apartment above a converted Victorian warehouse in Hackney
Architecture studio LT2A has added a brick extension to a school near Lille, featuring an entrance sheltered by an anodised-aluminium canopy, and circular windows that provide glimpses of courtyard gardens. More about Lille school extension by LT2A features porthole-like windows and golden details
Jamie Fobert Architects has completed a cliffside extension to the Tate St Ives in Cornwall, southwest England, which includes an underground gallery, a rooftop garden and ceramic cladding that mirrors the hues of the sea. More about Jamie Fobert sinks Tate St Ives extension into Cornish cliff facing the Atlantic Ocean
This extension to the roof of a Brussels apartment block by local studio Notan Office features a fireplace that takes its cues from the work of modernist architect and designer Alvar Aalto. More about Alvar Aalto inspires orange blockwork fireplace in Notan Office's Brussels roof extension
Atelier Pierre Thibault has restored and enlarged an early 19th-century home in Montreal, creating two separate libraries and a writing studio overlooking a river. More about Atelier Pierre Thibault expands historic Montreal home to create writer's studio
Austin-based architect Tom Hurt has extended the back of a ranch house using a series of stacked units and wooden interiors to form a multi-storey living space. More about Tom Hurt attaches tiered white pods with plywood core to Austin house