This scheme designed by Ashenden–Bax Architects is a contemporary code 3 building providing 450m2 of living accommodation below gently curving roofs, flanking a central octagon structure that provides a commanding focal point for the whole project.
The site was a gently sloping piece of land for which we had to cut and fill to provide the level site from which the main structure and the lower level garage could be constructed. Temporary site roads had to be laid and maintained due to the in-accessability of the site.
The structural steel and blockwork structure is clad in western red cedar with white self coloured render to the ground floor and octagon. Fenestration is RAL coloured aluminium. The curved roofs were constructed from curved steel beams and decking covered with cefil flexible synthetic membrane mechanically fixed to insulation board.
We also constructed the garage building. This two storey structures transforms to a single storey structure and is connected to the existing house via a glazed link and contains a den area to the first floor which is accessed via a separate staircase.
The project has been finished to a high specification with oak flooring throughout and glass balustrading to the octagon walkway and stairwell. The staircase itself is contemporary open riser structural steel with oak treads winding up to first floor level.
The house is underfloor heated throughout powered by air source heat pump, Electric supply is generated in part by photo-voltaic panels which will generate much of the electricity needed to run the dwelling.
Externally the house has a rainwater harvesting system used to supply the utility room water and toilet cisterns. There is a Klargester bio-dic sewerage treatment system, together with a new six metere deep soakaway built to accommodate clean treated waste and to service all rainwater overflow requirements.
This is a superb building and indeed a grand design.