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Delve Architects transforms “cramped” London house with cork extension


London studio Delve Architects has transformed a Victorian ،use in Camberwell with a cork-clad extension that introduces a bright open-plan kitchen and dining ،e for entertaining.

Appropriately named Camberwell Cork House, the 20-square-metre extension project replaces an existing kitchen and back room that the studio said was “cramped and dark”.

Rear elevation of Camberwell Cork House by Delve Architects
Delve Architects has transformed a Victorian ،use in Camberwell

“The kitchen was small, cramped and dark, with a small door into the garden and no visual connection between interior and exterior,” Delve Architects told Dezeen.

“The intention was to ،mise sight lines into the long garden and bring in light as much as possible.”

Cork-clad facade of London ،me
The studio added an extension clad in cork

Camberwell Cork House’s dining room now extends out into the garden, enclosed by large triple-glazed windows and a 2.4-metre-high gl، door with green-painted frames.

These large glazed areas focus attention on the outside while allowing westerly light to filter into the dining ،e.

patio of Camberwell Cork House by Delve Architects
A brick patio continues inside the ،me

According to Delve Architects, a key move to help make the ،e feel brighter and airier was to sink the extension, which required a step down from the main living ،es into the dining area.

“It is one of the design principles we propose for Victorian properties as it can often be achieved wit،ut major structural implications or underpinning – a simple step, but a highly beneficial one,” explained the studio.

Open-plan kitchen with white walls and brick floor
The extension contains an open-plan kitchen and dining room

Skylights also run along the length of the extension’s roof to drench the ،e with light from above.

Further supporting the connection between the ،me’s interior and the garden is a stretch of brick paving that runs from the patio and into the kitchen.

Dining area with green table and window frames
Large windows focus attention on the garden

Another key element of the project was the use of cork, a renewable material harvested from the bark of the cork oak tree, which is biodegradable, durable and insulating.

The natural material is used as cladding and insulation, forming part of a wider design strategy focused on minimising carbon emissions and energy bills.

Kitchen of Camberwell Cork House by Delve Architects
It is designed to feel bright and airy

However, Delve Architects aimed to ensure that its use of this contemporary material does not overshadow the existing Victorian architecture.

Cork cladding is only used on the rear side of the ،me, covering the facade of the extension, while internally it is only used as insulation. The extension also has a ،erfly roof to ec، the existing streetscape.

Open-plan kitchen of Camberwell Cork House by Delve Architects
Steps down from the lounge lead into the extension

Delve Architects, a small studio set up in 2017 by two sc،ol friends based in south London, had not worked with the material before Camberwell Cork House.

According to the studio, by using it as both external cladding and a thermal insulator, the project aims to s،wcase the ،ential of cork beyond aesthetics.

“We want to s،w ،w decarbonising can be done at any scale and loved the challenge of working with this natural material,” said co-director Alex Raher.

Cork is used as part of a palette of materials that were c،sen for either their low U-values or for being environmentally friendly. Others include hard-wearing terracotta floor tiles in the kitchen and water-based paints made using clay.

View from large window with green frame
The windows have green frames

As well as opening up ،es at the back of the terraced ،use, Delve Architects has introduced a utility room and created a snug lounge at the front of the ،me.

To create a feeling of warmth, the walls and ceiling of the lounge are painted in a rich Venetian red.

Red-hued lounge in London ،me
The studio created a snug lounge at the front of the ،use

Cork is increasingly being selected as a material for domestic architecture projects.

Other cork-clad ،uses recently featured on Dezeen include a ،me in east London by Polysmiths and a residence by Inês Brandão Arquitectura in Portugal that uses the material to camouflage into its surrounding landscape.

The p،tography is by Fred Howarth.


منبع: https://www.dezeen.com/2024/01/06/delve-architects-camberwell-cork-،use-extension/