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Exterior photo of Maison Jericho by Olivia Fauvelle Architecture

Dezeen's top 10 residential extensions of 2023

Our 2023 review continues with a roundup of the top residential extensions featured on Dezeen this year, including a wooden structure slotted behind a cottage and a blush-pink addition to a 1930s home.

The transformation of a bungalow built in world war two and an industrial London residence also feature on the list of home extensions, which are among the most popular to be published by Dezeen this year.

Read on to discover the full selection:


Photo by Richard Chivers

The Pines, UK, by Ström Architects

Fair-faced concrete and lime-washed brick characterise the exterior of this sprawling extension, added to a traditional-style family home in Surrey by British studio Ström Architects.

Organised around an outdoor swimming pool, the single-storey extension contains a gym and sauna, as well as a kitchen, dining space and home office.

Find out more about The Pines ›


Photo by Adrià Goula

House 1616, Spain, by H Arquitectes

Local studio H Arquitectes added two floors above a compact 19th-century dwelling in Barcelona, uniting old and new through the use of red brick.

House 1616 has a street-facing facade punctuated by large rectangular windows, while its rear elevation is broken up by balconies and terraces that aim to connect the interiors to the outside.

Find out more about House 1616 ›


Photo by Stijn Bollaert

Camberwell House, UK, by Pashenko Works

London studio Pashenko Works opted for an industrial palette of corrugated steel and exposed breezeblocks for this extension to a Victorian terrace.

The structure introduced spaces to the top and back of the property, more than doubling its original floor area while helping to create bright and airy interiors.

Find out more about Project ›


Photo by Ståle Eriksen

Fohlenweg, Germany, by O'Sullivan Skoufoglou Architects

A thick limestone band separates the old and new elements of this monolithic home in Berlin, renovated and extended by London studio O'Sullivan Skoufoglou Architects.

The former bungalow was originally built during world war two to house army personnel and now contains a spacious home thanks to two additional storeys.

Find out more about Fohlenweg ›


Photo by Lorenzo Zandri

Steele's Road House, UK, by Neiheiser Argyros

A glass conservatory was removed and a portion of the garden was excavated to make way for this contemporary basement extension, added to a Victorian-era terrace in London by local studio Neiheiser Argyros.

Clad in stained accoya wood, the structure opens out onto a deep courtyard and is crowned by a ground floor-level roof terrace.

Find out more about Steele's Road House ›


Photo by Rory Gardiner

Garden Tower House, Australia, by Studio Bright

A traditional worker's cottage in Melbourne has been extended by local practice Studio Bright with a two-volume extension clad in geometric tiles.

The two structures share a dusty pink hue and contain living, dining, kitchen and bedroom areas. The original building's facade and verandah were restored while a study space was introduced to its interior.

Find out more about Garden Tower House ›


Photo by Peter Molloy

Pink House, Ireland, by Courtney McDonnell Studio

A 1930s home on the outskirts of Dublin was updated with a blush-pink extension by Irish practice Courtney McDonnell Studio that references the work of Mexican architect Luis Barragán.

Those walking through the house are transported from the existing home into the extension via a tunnel-like timber-clad corridor. The pink structure houses an open-plan living space that opens out to the garden via large glazed sliding doors.

Find out more about Pink House ›


Photo by Jack Lovel

Shadow House, Australia, by Grotto Studio

This cottage in Perth, which dates back to the early 20th century, has been expanded with a jarrah timber-clad volume by Australian studio Grotto Studio.

A covered carport on one side of the existing home creates the entryway to the new volume, which runs along the back of the plot and contains a guest suite and living space.

Find out more about Shadow House ›


Photo by Manon Vandenhoeck

Maison Jericho, France, by Olivia Fauvelle Architecture

French studio Olivia Fauvelle Architecture connected an outbuilding to a 1900s stone-built house in Marseille using a contemporary structure clad in green tiles.

Maison Jericho's extension houses a bedroom and living space, positioned beside a courtyard containing an outdoor swimming pool.

Find out more about Maison Jericho ›


Photo by Matthew Williams

Monroe Street House, USA, by TBo

New York studio TBo created "gentle oppositions" between a 124-year-old Brooklyn townhouse and the three-storey extension that it added to the rear.

The added space houses an annexe apartment for the grandparents of the family. Large windows let natural light into its long and narrow interior.

Find out more about Monroe Street House ›


2023 review

This article is part of Dezeen's roundup of the biggest and best news and projects in architecture, design, interior design and technology from 2023.

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