Project 111
Caithness Road
Hammersmith · Conservation area
A single-storey glazed extension wrapping the side and rear of a Victorian back addition, opening the lower floor to the garden under a stepped glass roof.
01Glazed side and rear extension
02Stepped frameless glass roof
03Cantilevered oak and glass stair
The house is a Victorian terrace in a Hammersmith conservation area. The new extension fills the narrow side return and continues across the rear, turning a dark, divided lower floor into one open kitchen and dining space.
Planning permission was granted by Hammersmith & Fulham Council in 2013, following a revised application.
The glass roof
Light down the side return
The roof steps down along the old back addition in a run of frameless glass, so the kitchen sits under open sky with the trees above.
At the end, full-height sliding doors open the dining area onto a sheltered terrace and garden.
The stair
Oak treads held in glass
Solid oak treads cantilever from the wall and are held along their open edge by a full-height glass screen, so the stair reads as a series of floating blocks.
Lights set beneath each tread wash the wall at night, and the glass lets daylight from the roof pass straight through to the rooms below.
Gallery
The finished house
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