Downton Avenue

London

2023

A house extension extending the ground floor and roof. The design references the Edwardian details of the local area with an arched projecting window seat and textured brickwork. Built in timber frame and reclaimed Suffolk white brick, which is sourced within 50 miles of the site. The building uses wood fibre insulation which has net positive embodied carbon.

Inside, a new oak stair is inspired by the original features and sliding pocket doors are used to make efficient use of the space. All with improved energy performance measures to the original house, adding insulation beneath existing floors and upgrading the performance of the existing windows.

The project was featured in the RIBA exhibition ‘Long Life, Low Energy: Designing for a circular economy’. We also wrote about the project's embodied carbon benefits in Design for Me article: Making more with less about sustainable house extensions.

Client

Private

Collaborators

Blue Engineers

Reuse

~200kgCO2e/m2

See also

Read more about in our news page highlighting the RIBA’s RIBA’s Built for the Environment report