This conservatory, built for an existing Grade 2 listed house, sits in a north-facing garden. The roof profile had to be pitched shallow to ensure that it sits below the existing adjacent boundary wall shared with the neighbour. The roof also needed to be well-drained. One solid piece of wood, enclosed by four seasons glazing units, forms the entire structure and acts the building's envelope, structure, insulation and cladding. The diagrid frame is a combination of falls that are either short and steep or long and shallow. The pieces were all CNC fabricated and were light enough to be assembled manually onsite. The beam cross junctions were fixed without any glue or mechanical fixings. Each wood section is wide and deep which helps to emphasise natural light and cast shadows throughout the space.