Dumican Mosey includes red staircase for "sculptural relief" in San Francisco renovation

Local studio Dumican Mosey has completed a renovation of a 1907 house with a four-storey, red staircase in San Francisco's Russian Hill neighbourhood.
Dumican Mosey completed the 3,300-square foot (300-square metre) house, named the Red Stair House, in 2022.
Red Stair House was originally built in 1907
The completed residence preserved the original building footprint but expanded the living space by excavating a level below the ground floor and adding a single-story addition to the top of the ho