As a first year student at the Brixton School of Building in 1971 I designed a house with a grass and glass roof and was delighted to realise this in built form thirty-three years later to the back of a listed Georgian house in Peckham. Helen Rogers, of the structural engineers Price and Myers designed a series of steel portals spanning onto a concrete plinth which carried alternate strips of sedum roof and glass, with the large glass panels following the windows in the house, and the grass the brickwork in between. The glazed gable allows a view of the Georgian garden wall.