The project started off as a relatively straight forward rear extension and kitchen refurbishment but when the clients agreed to include a 6m long board marked concrete wall the design took on a new dimension.
One rear corner was extended; 1m sideways and 1.5m backwards. This was all that was needed to relocate the kitchen and create a dining space and family room for the client. The 6m long concrete side wall extended above the existing ceiling by 600mm before being glazed over so that natural light can wash the wall without the space being overlooked by the neighbour.
The rear extension is glazed on 3 sides and connects to the side roof glazing. To take full advantage of this wrap-around glass roof the main structural beam supporting the 1st floor room above is cranked up out of sight so that the ceiling appears to float.
The concrete wall was formed using vertical boards to the full height of the wall allowing for no horizontal breaks, carefully site mixed with white cement and fine sand aggregate. The effect is very striking and unusual for concrete. The butt-jointed spruce scaffold planks fully embossed their grain onto the finished wall such that on first glance it appears to be timber save for the tie holes and textural honeycombing which we embrace.
The warm colour of the concrete meant the flooring needed to be carefully considered. In the end we opted for a washed engineered oak with the boards running perpendicular to the vertical board marks on the concrete.
The sliding glass doors in the in the rear extension are 3.2 M tall to match the concrete wall, again extending beyond the original ceiling level and connecting the internal space to the garden.
The kitchen was kept simple in a white handle-less design, which boasts a 3.2m long white corian island, extending through a glazed pivot door to an outside cooking area - formed in concrete with the use of delicate ceramic hand painted tiles to the legs.
The formal living area is connected to the family space through a piece of joinery that conceal pocket doors. There is a concrete shelf for media and the fire place cast across the chimney breast to compliment the concrete wall in the dining space. The hallway was given a more traditional treatment with new tiled floor and a coat cupboard blended into the paneling.