Built in 1906 as a flat-over-store in SoMa's post-quake rebuild, 422-424 Tehama sits within one of San Francisco's fastest-evolving corridors shaped by AI, tech, and creative office users. The upper level offers a three-bedroom flat with eat-in kitchen and full bath. The lower level is separately accessed and includes a kitchen, bath, and additional rooms. An accessory rear structure is currently used as a music studio and is not represented as permitted living space. RSD zoning allows a range of residential, live/work, and commercial uses. The 3R Report reflects legal use as a one-family dwelling with commercial, may offer potential pathways for future repositioning, including single-family conversion subject to Planning and DBI approval. Property records differ from current configuration; buyers are advised to review disclosures and independently verify legal use, square footage, layout, conversion potential, and tenancy rights with appropriate professionals. Central location with access to downtown, transit, and major commuter routes.