House of Trace

The demolition of the original extension and its replacement, called for an intervention that could be a part of the original main building, without replicating classical vocabulary or gesture. Our intent was to keep a sense of everyday memory, while simultaneously allowing the new intervention to have its own identity. The original brick extension on this London terraced house had no distinct historical or architectural value, and was structurally unsound, but it had a sloped roof profile typical of those found in terraced house back gardens in the UK. We chose to incorporate the banality of the sloped roof profile into the new face of the rear garden – in a way preserving its charm to carry some sense of associated memory to those who know it or those who see it a new. The new home consists of an open plan ground floor with three bedrooms on the upper level for the parents and two girls.

As the extension increased the depth of the house, a twostorey lightwell was added between the new and old building to bring daylight to interior rooms, now a focal point, connecting the family between floors, and the scream, “food is ready” echoes through this passage. On the upper floor, the master bedroom and the children's rooms each have an internal window facing the lightwell, giving parents and children a sense of closeness, yet allowing for privacy. One of the existing walls was leaning at a displacement of about one brick thick towards an adjacent building. These significant old movements were registered as cracks on the leaning wall, and we revealed and retained them within the corridor. Where possible, the structures of the new envelope have been exposed internally. These surfaces will register future stories of the house. The hand marks on the bare plaster finish are left exposed in the bedrooms, and are now recorded on the internal faces of the building’s fabric. The slow patina of bespoke copper and brass fittings show the passage of time. By registering these notions of memories and stories, the clutters of daily life could fully inhabit the space.

We used the UK’s most conventional construction of brick cavity walls with timber joists to form the floor and roof for the new extension and reinstatement of existing parts, This allowed ordinary building trades to use their skills fully. The full potential of these ordinary building materials were tested through our detailing and incorporating computation helped to minimise waste and ensure correct site executions. The entire building and components were modeled in detail, three dimensionally. Some components, including the main stair and furniture, were broken down further to be processed in CNC routering, to be brought to the site as flatpack packages, and the sheet materials used for the process were already familiar to the carpenters to work on site. The record of this CNC flatpack process can be traced to the numbering system visible on each piece, retained as memories of assembly. This approach cut time and cost significantly, and also reduced the distance between drawing board and site execution. The brick was chosen for its long duration and is maintenance free as is the new roof finish, which is covered with stone pebble that protects from weather exposure.