Visit 6a architects’ award-winning “Tree House”

Each September in London the wonderful “Open House” takes place, and over the course of one weekend a vast number of notable buildings open their doors to the public for free. This year’s festival takes place on 20 and 21 September and 6a’s RIBA Award-winning “Tree House” will be open to visitors.

The full list of accessible buildings will be released on the Open House website on Friday 15 August. Visits to all buildings are subject to capacity restrictions and some require advance booking.