Discover authentic urban loft living at Harbor Lofts, a historic landmark building transformed into 46 exclusive live/work lofts in San Francisco's vibrant South Beach neighborhood. Located at 400 Spear Street (at Harrison Street), San Francisco, CA 94105, this award-winning adaptive reuse project combines 19th-century industrial architecture with modern amenities in one of the city's most walkable waterfront locations.
Originally constructed in 1857 as the Hathaway Warehouse, Harbor Lofts is one of the six oldest buildings in San Francisco and a designated National Historic Landmark. This iconic warehouse survived the 1906 earthquake and served maritime commerce for over a century. Additions to the Harrison Street facade were completed in 1875, with upper sections finished around 1900.
In 1996, renowned architecture firm MBH Architects completed the award-winning conversion of the historic warehouse into 46 live/work loft condominiums. The project received the prestigious Gold Nugget Award of Merit for Adaptive Reuse in 1997. MBH Architects, known for their expertise in loft conversions, also designed notable San Francisco projects including North Beach Malt House, The Odeon, and Embarcadero Lofts.
Harbor Lofts residences are arranged around a striking two-story central courtyard and range from 480 to 1,877 square feet. Units feature authentic loft characteristics including soaring high ceilings (up to 20 feet in select units), exposed brick walls, original timber beams, polished concrete or hardwood floors, oversized windows with abundant natural light, and open floor plans that preserve the industrial character of the original warehouse.
Many lofts offer two-level layouts, floor-to-ceiling windows, modern kitchens with updated appliances, spa-style bathrooms, in-unit washer/dryer, and ample storage space. A typical Harbor Lofts residence is approximately 1,114 square feet with 1 bedroom and 1 bathroom, though floor plans range from studios to 2-bedroom lofts.
Harbor Lofts enjoys a premier South Beach San Francisco location at the corner of Harrison and Spear Streets, directly adjacent to the Bay Bridge approach. The building places residents within easy walking distance of the Ferry Building and Ferry Building Farmers Market, Embarcadero waterfront promenade, Oracle Park (San Francisco Giants ballpark), Financial District offices and employers, world-class restaurants and dining, artisan coffee shops, Rincon Park and waterfront parks, and downtown San Francisco shopping and entertainment.
The neighborhood offers exceptional transit connectivity with nearby Muni Metro lines, BART stations, Caltrain access, and direct freeway access to I-80, I-280, and US-101 for East Bay and Peninsula commutes.
Harbor Lofts provides leased parking and valet parking service available for residents, secured entry and building access, central courtyard for relaxation and gatherings, live/work zoning flexibility for home offices or creative studios, and professional HOA management. The low-rise 2-story building design creates an intimate community atmosphere while maintaining the authentic warehouse aesthetic.
South Beach is one of San Francisco's most dynamic urban neighborhoods, combining historic industrial architecture with modern high-rise developments. The area has transformed into a thriving mixed-use community known for its walkability (high Walk Score), access to waterfront recreation, proximity to major employers including Salesforce, Google, and tech companies, and a vibrant dining and nightlife scene.
San Francisco International Airport is 22 minutes away (14 miles), while Oakland International Airport is 28 minutes away (18.5 miles). The building's location at the foot of the Bay Bridge provides easy access to the East Bay, while walkability to downtown San Francisco, public transportation connections, and bike-friendly infrastructure make car ownership optional.
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