The original bungalow was small and subdivided. The extension adds a new kitchen volume at the rear, clad in black charred timber board-and-batten and capped with a flat roof and dark metal fascia. The back wall is almost entirely glass: a three-panel lift-and-slide door flanked by fixed lites, putting the backyard and deck on the same plane as the interior. Partition walls in the original house were removed to open a sightline from the front door straight through to the garden.