Part of a larger renovation project the client's brief was to create a
new stair linking two flats to form a single house within the Grade A
listed Edinburgh terrace. The stair is positioned at the heart of the
house linking the two levels together seamlessly allowing as much light
as possible into the lower ground floor level. Inspired by the work
of sculptors Locky Morris and Barbara Hepworth the proposal endeavoured
to abstract the floor surface to form a sculptural, flowing spiral. The
conventional spiral stair plan has been twisted so that the leading
edge of each tread runs perpendicular to the tangent of the central
void, meaning visually each tread tapers into the next creating a
continuous timber surface when viewed from above. In order to achieve
this complex geometry while allowing light to pass through the structure
each tread is supported on a unique cantilevered steel profile tapering
in plan and section. While forming a single solid surface when viewed
from above, the profile of the treads means that each step is viewed as
an individual element from below visually reminiscent of turbine blades
or a wing profile. The light flows between the steps and creates
different qualities of light and form when viewed from any point in the
space. A central glazed balustrade is supported form the end of each
cantilevered tread, while a recessed handrail runs around the perimeter
wall. The grain of the timber cladding has been orientated to
match the direction of the leading of each tread and to enhance the flow
and movement of the stair, while the upper floor landing. This
treatment is carried into the upper floor landing, tying the stair into
the rest of the house. The lighting is incorporated into each
step, with LED strips discreetly fitted between the steel profile and
timber cladding. The space, form and lighting of the stair have created
a serene quality to this area which has formed a new central point to
the family homePictures: Daniel Farrar