73 Sumner St 402, San Francisco, CA 94103
The top floor of the Mullen Building rarely comes available. This corner penthouse loft sits atop one of SoMa's most distinctive buildings, a 16-residence boutique conversion of a 1920s warehouse originally designed by architect George Hauser. Step inside and the architecture reveals itself immediately. A full wall of industrial steel-framed windows rises to soaring ceilings, flooding the space with natural light and framing Twin Peaks and the San Francisco skyline beyond. Radiant-heated concrete floors, a wood-burning fireplace, and a sculptural steel staircase rising to the loft suite create a space that feels both expansive and distinctly personal. What truly distinguishes this residence is its rare connection to the outdoors. A private patio off the main living level extends the home's entertaining space into the open air, while a second terrace off the upper loft suite offers sweeping city views and a quiet retreat above the surrounding neighborhood. The shared rooftop deck, located on the same level, provides panoramic views stretching across San Francisco. The chef's kitchen is outfitted with a Wolf range, Viking appliances, quartz countertops, and a herringbone tile backsplash. The open floor plan flows effortlessly from kitchen to dining to living, preserving the volume, light, and flexibility that define authentic loft living. Two en-suite bedrooms, in-unit laundry, and deeded two-car tandem parking complete the offering. Tucked away at the end of a tree-lined cul-de-sac, the Mullen Building offers a rare sense of privacy and calm just moments from SoMa's restaurants, cafes, cultural destinations, transit connections, and the city's evolving technology and innovation corridor. A rare top-floor loft where the energy of the city remains close at hand and the quiet of a cul-de-sac becomes your own retreat.
Bedrooms
2
Bathrooms
2
Square Feet
1,368
Lot Size
5,972 sqft
Year Built
2002
Property Type
Condominium
Days on Market
0
HOA Fee
$1060/mo
Garage Total
2
MLS #
41137131
Flooring
Concrete, Tile, Wood
Fireplace
Living Room
Appliances
Gas Water Heater, Washer
Cooling
Whole House Fan
Heating
Radiant
Total Parking Spaces
2
Garage Spaces
2
Attached Garage
Yes
Parking Features
Underground, Garage, Garage Door Opener, One Space
Patio & Porch
Deck, Patio
Construction
Aluminum Siding
Maintenance Grounds, Other, Security, Trash, Water
$0
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Balanced market
Avg. time on market
This is a Balanced Market. Homes are selling at a moderate pace.
Flood Risk
Minimal — not in a FEMA flood zone
Wildfire Risk
Moderate — near wildland-urban interface
Heat Risk
Low — moderate summer temperatures
Earthquake Risk
Southern California seismic zone
Based on price, location, and features
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