A vivid orange stairwell and a canted glass facade are among the modifications that US studio Fougeron Architecture has made to a century-old house in San Francisco.

Encompassing 2,500 square feet (232 square metres), the Cut Out House is situated in Noe Valley, an affluent neighbourhood of the city.
The project entailed the complete remodel of a Victorian home built over a century ago and left untouched since the 1920s.

The dwelling occupies a slender parcel that measures 65 by 25 feet (20 by eight metres) and is attached to its next-door neighbours.
"In this exceptionally narrow lot, solar orientation and natural light diffusion were paramount for making sure the home felt warm and open," said Fougeron Architecture, a San Francisco studio that was founded in 1985 by architect Anne Fougeron.
While the street-facing elevation was preserved, the architects re-imagined the back facade. A two-storey wall tilts outward at nine degrees, which maximises the floor area within. A portion of the third floor also angles outward, but in the opposite direction.

The canted facade consists of glass panes set within a custom, field-glazed steel frame.
The interior of the three-storey dwelling was completely reconfigured. The team "reversed the original flow" by moving the main public area to the ground level, where it connects to a rear garden.

"Large sliding doors opens the living room, dining room and kitchen to the outdoor space," the studio said. &qu...