An extraordinary extension to a semi-detached house in a Tynemouth conservation area. The clients - a growing family - needed space, light and a healthy sustainable place to be together. The design evolved around the heart of the scheme – a dynamic integrated water feature inset into the living space. It also involved the addition of two bedrooms, including a room in the roof. The living space is covered with a radial stepped glass and sedum roof. This channels the rainwater, and the eye, towards the gap between the edge and the water feature. Innovative use of external insulation over super-insulating blocks gives Passivhaus-level insulation with roof and floor construction to match. Careful attention to the radial folds in the external surface are replicated in the internal ceiling finishes. The use of a cellulose-based dynamic vapour control layer on the flat roof, linoleum based bathroom floors, rubber kitchen and stair finishes and Douglas Fir with Osmo finishes helps to enhance the healthy environment created by the extension, both inside and out. The Project won an Excellence LABC Award 2011