Tucked away in one of the most desirable districts of San Francisco. Sandwiched in between North Beach & Russian Hill, this mixed use corner property is a once in a lifetime opportunity to own a piece of San Francisco. This Edwardian Style building features three residential units and commercial storefront (1801 Mason Street). The top two units are identical large 6 room flats with spacious eat-in kitchen, split bath, double parlor living room, and formal dining room, that could be used as three bedrooms. South-facing windows allow abundant natural light and elegant period details include: high coved ceilings, gorgeous wood trim, inlaid hardwood floors, French pocket doors, and distinctive circular bay window. Newer roof, newer roof deck, remodeled interior in 810 Union St, & upgraded electrical. Full basement with height clearance for future development. Awesome rooftop views of downtown skyline, Coit Tower, St Peter & Paul, Alcatraz, and the Bay. The iconic San Francisco Cable Car runs along side Mason St & Union St. Walking distance to Washington Park, restaurants in North Beach, famous "Crookedest Street", Fisherman's Wharf & so much more.