Sketch of the week: Hackney extension

This week’s #buildingdoodle sketch is a concept of a two-bed roof extension in Hackney, drawn by Kieran Walker, architect at Waugh Thistleton Architects. He says: “Envisioned as a lightweight addition to the existing building, the scheme will incorporate an exposed structural timber ceiling, and prefabricated SIPs system. The open-plan living area (shown here) extends into an external roof terrace, and will be glazed on three sides to capitalise on views towards the City.”
To submit your sketches for publication please email building@ubm.com or post via Twitter using the hashtag #buildingdoodle