A concrete dining room cast in situ and framed by red steelwork forms the heart of this Hackney home, remodelled and extended by London studio Archmongers. More about Archmongers revamps 1970s London home with rough concrete and red steel
Architectural studio Bindloss Dawes has added an expressed concrete and timber extension to a dilapidated terraced house Hackney, London. More about Bindloss Dawes adds exposed concrete and brick extension to London terrace
Local architecture studio Carmody Groarke has overhauled a penthouse apartment in London, adding slanted panels of aluminium to create a sheltered rooftop terrace. More about Carmody Groarke tops listed London penthouse with aluminium "rooftop pavilion"
With many homeowners looking to extend their property, we've added a new architecture category dedicated to these modern additions for Dezeen Awards 2025. Below are eight extensions to inspire your entries. More about Eight extensions giving their homes a new lease of life
Historical follies and "secret hideaways" informed the boat-like shape of Folly Fair Hill, an annexe in Norway designed by local architecture studio Rever & Drage. More about Rever & Drage draws on follies for boat-shaped annexe in Norway
London studio Proctor & Shaw has used thin timber battens to clad this house extension in Peckham, which is crowned by planted roofs and a tiered allotment. More about Proctor & Shaw tops Hope Villa extension in London with allotment
A traditional front door opens up to reveal a dramatic double-height space in this terraced house in Dublin, refurbished by Irish studio Scullion Architects. More about Scullion Architects conjures "moment of discovery" for Grattan house in Dublin
Deep-set windows and reading nooks puncture the rammed-earth walls of this school extension in France, completed by local studio NTSA Architectes. More about NTSA Architectes draws on "age-old know-how" for rammed-earth school extension
Local studio Lionel Ballmer Architectes has created a timber annexe for The Wandering House, a traditional barn in rural Switzerland, which "floats" above an exposed concrete base. More about Lionel Ballmer Architectes raises rural Swiss annexe on concrete plinth
Local studio Dominic McKenzie Architects has extended a Victorian home in south London, uniting old and new with arched motifs that appear as decorative brickwork, openings and even a small cat door. More about Dominic McKenzie Architects enlivens Segmental House with arched details
Brazilian studio Metro Arquitetos Associados has extended the Museu de Arte de São Paulo by modernist architect Lina Bo Bardi with an aluminium-clad tower. More about Metro Arquitetos Associados adds black tower to Lina Bo Bardi's MASP
Dezeen Awards has added eight new categories for 2025, including ones aimed at better supporting emerging and smaller studios. More about Dezeen Awards 2025 announces eight new categories
British architecture studio AOMD has used an L-shaped extension to create a free-flowing interior for Hop Cottage, a semi-detached house in Kent, England. More about AOMD reorganises Edwardian cottage with timber-framed extension
London studio Cooke Fawcett has expanded a Grade II-listed mill house in Hampshire with timber-clad additions that open the home up to its surroundings. More about Cooke Fawcett adds timber-clad extensions to Hampshire mill house
Hempcrete and timber form the rough-hewn walls of this south London house extension, designed by local studio Nimtim Architects with a focus on low-carbon materials. More about Nimtim Architects creates "textured envelope" for Hemp House extension
British studio Mole Architects has overhauled the Stone's Throw bungalow on the coast of Suffolk, adding a timber-framed extension containing sunny south-facing living spaces. More about Mole Architects' revamp of Suffolk bungalow "more of an epiphany than a refurbishment"
British architecture practice Studio Merlin has updated Hoj House, a Victorian home in Stoke Newington, with a wildflower-topped extension that draws on Scandinavian design. More about Studio Merlin adds extension with wildflower meadow roof to London home
London-based OEB Architects has completed Lewisham Loggias, a colourful loft extension that takes cues from Italian palazzos and paintings. More about OEB Architects adds Italian-informed loft extension to south London house
A cat climbing frame and a cosy window seat are among the features of this colourful extension, added to Park House in London by local studio Office S&M. More about Office S&M extends Hackney house for "both human and feline residents"
Local studio ROAR Architects has extended a Victorian house in southeast London with grass-topped and oak-framed living spaces that overlook a large garden. More about ROAR Architects adds oak-framed extension to heritage-listed London home