Bloco Arquitetos has created an extra storey for a family home in Brasília by adding a stilted concrete structure that incorporates panels of perforated brickwork. More about Brick screens are set into framework of concrete columns and beams at Casa Grid
This house in Belgium has been overhauled for a couple of art and book collectors to include a wood-lined living space and plenty of cosy reading nooks. More about Rob Mols and Studio K update Belgian home with wood-lined garden room
A dormer window with a thick black frame offers views of the garden from this reading room, which is one of three new loft spaces created for a home in south-east London by A Small Studio. More about Victorian loft conversion by A Small Studio creates "relaxation oasis"
Architect Henri Bredenkamp has overhauled a London house once used as a teaching space by Goldsmiths university to create a light-filled home for his family. More about Henri Bredenkamp converts derelict university building into family home
US studio Desai Chia Architecture has overhauled a country home in Long Island, New York, and created an extension that is meant to be an "expressive counterpoint" to the main dwelling. More about Desai Chia adds pointy extension to cedar-clad cottage in the Hamptons
A geological-inspired addition to the Natural History museum in New York by US firm Studio Gang has received unanimous approval from the city's Landmarks Preservation Commission. More about Studio Gang's American Museum of Natural History extension moves forward
This extension to a day-care centre for disabled adults in the Swiss town of Stans has been kitted out with muted red awnings and spiralling pastel-tinged walkways. More about Disability support centre by Architekten CM features tinted concrete ramps and retractable awnings
The Natural History Museum in London has won planning permission for a major upgrade of its entrance areas, designed by Niall McLaughlin Architects and landscape firm Kim Wilkie. More about London's Natural History Museum set for major extension by Niall McLaughlin Architects
A huge, faceted glass volume sits on the roof of the new headquarters Zaha Hadid Architects has designed for Antwerp's Port Authority (slideshow). More about Zaha Hadid Architects sits rippling glass lump on top of Antwerp port building
Atelier Lame has added a steel-framed extension to an old stone house in a Parisian suburb, as part of a renovation that creates ample storage for an avid CD and record collector (+ slideshow). More about Steel and glass extension added to traditional stone house in Paris by Atelier Lame
Dezeen promotion: New London Architecture is now accepting entries for Don't Move, Improve! 2017, a competition to find the best house extensions in London. More about Call for entries to NLA's Don't Move, Improve! awards 2017
Architects office Studioplusthree has overhauled a traditional house in Sydney for a pair of musicians, adding a recycled-brick extension that features a projecting black steel awning. More about Dark-toned extension added to white Federation house in Sydney by Studioplusthree
Northern Ireland studio McGarry-Moon Architects has renovated a historic house in west London, and added a contemporary timber and concrete extension connected by a glass-lined corridor (+ slideshow). More about McGarry-Moon Architects updates Richmond Park gatehouse with contemporary extension
Belgian studio Atelier Tom Vanhee has added two offset gabled volumes onto the side of an existing brick structure near the village of Aartrijke to turn it into a modern home (+ slideshow). More about Atelier Tom Vanhee adds pair of gabled extensions to brick farmhouse in Belgium
Local architecture firm Studio Octopi added this brick and glass extension to a Victorian terrace in west London to improve the connection between the property's reconfigured interior and garden (+ slideshow). More about Studio Octopi adds glass-fronted extension to White Lodge house in London
Architecture studio Hayhurst and Co has built a home and studio for leading leather-design duo Whitaker Malem, featuring a steeply stepped roof covered in over 800 plants (+ slideshow). More about Hayhurst and Co creates "hanging-basket roof" for designers' home and studio
Australian architect Matt Gibson used zinc cladding to distinguish this faceted structure from the Edwardian residence it extends (+ movie). More about Matt Gibson's faceted Shadow House extends an Edwardian home in Melbourne
This extension to a Swiss art museum by Spanish studio Barozzi Veiga features gridded concrete facades and subterranean galleries (+ slideshow). More about Barozzi Veiga adds gridded concrete extension to Bündner Kunstmuseum
Architecture studio Selencky Parsons has extended a typical midcentury end-of-terrace house in southeast London by adding a pair of brick gables that diminish in size like Russian dolls (+ slideshow). More about Selencky Parsons adds stepped extension to 1960s terraced house in London
Kirkwood McCarthy has added a black zinc-clad wing to the rear of a London house, creating a light-filled living space that sits between the garden and a new courtyard. More about Kirkwood McCarthy adds zinc-clad garden wing to north London house