Lisbon studio Orgânica Arquitectura have completed a two-storey residence behind the solid stone walls of an otherwise ruined house in Sintra, Portugal.

A wall of windows at the rear of Cabrela House overlooks a small courtyard, which is bounded by the retained stone structure.

The new steel-framed house has a pitched roof that imitates the profile of both the existing building and the adjoining property next door.

Photos by Fernando Guerra