London loft extension by Office S&M explores how far cork can go

London studio Office S&M has used cork as cladding, insulation and flooring in this mansard extension to a house in Walthamstow, which is enlivened by bright yellow details.

Aptly named Cork Loft, the extension has created space for an additional bedroom and bathroom, marking the first phase of a wider renovation of the Victorian terraced home.

The homeowners tasked Office S&M with prioritising sustainability in its material choices, which led the studio to "exploring how...