Elegant Nob Hill Triplex with Renovated Flats, Parking & Bonus Studio! Perched atop iconic Nob Hilljust one block from the Fairmont and across from the Cable Car Museumthis elegant 1912 building offers timeless charm with updated interiors and incredible flexibility. The property features three spacious flats totaling approx. 4,500 sq ft, plus garage parking for 3 small cars and a bonus studio with full bath. The top two flats are vacant and recently renovated with updated kitchens, stainless appliances, engineered hardwood floors, in-unit laundry hookups, and two bedrooms plus a fainting room (ideal for guest space or office). Formal living and dining rooms, fresh paint, and split baths complete each home. The lower flat is tenant-occupied with stable, long-term rental income. The garage level was expanded with permits in 2005. All units have updated electrical and no knob-and-tube. With expansion potential and a premier location surrounded by cafs, landmarks, and transit, this is a rare opportunity for investors or owner-users alike. Come early!
Listed by Winnie W. Fok
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License #01235265
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Sotheby's International Realty
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9291500
Last updated November 14, 2025
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Source: SFAR #425071810
Listing Facts
TypeMulti-family
NeighborhoodNob Hill
Days on Prevu69
Size4,500 sqft
Price per sqft$555
Amenities
Dishwasher
Pets Allowed
Parking
Location
Mortgage Calculator
Listing History
10/27/2025
Status changed to Active
$2,499,000
10/23/2025
Status changed to Removed from Feed
$2,499,000
10/22/2025
Status changed to In Contract
$2,499,000
10/16/2025
Status changed to Removed from Feed
$2,499,000
10/16/2025
Status changed to In Contract
$2,499,000
09/11/2025
Listed by Sotheby's International Realty
$2,499,000
Property Details for 1140 Mason Street
Exterior
Construction
Number Of Units Total: 3
Property Condition: Updated/Remodeled, Varies By Unit
Stories: 3
Stories Total: 3
Year Built: 1912
Architectural Style: Edwardian
Construction Materials: Wood
Features
View: City
Measurements
Lot Features: Corner, Curb(s)
Lot Size Acres: 0.03
Lot Size Source: Assessor Auto-Fill
Lot Size Square Feet: 1,650
Lot Size Units: Square Feet
Financial
Residential Income
Cap Rate: 6.87
Taxes
Parcel Number: 0212-025
Interior
Features
Appliances: Dishwasher, Disposal, Free Standing Gas Range, Free Standing Refrigerator
Flooring: Carpet, Linoleum, Simulated Wood, Tile, Varies By Unit
Measurements
Living Area: 4,500
Living Area Source: Assessor Auto-Fill
Rooms
Basement: Finished
Rooms Total: 17
Other
Environmental
Green Energy Efficient: Appliances
Parking
Parking
Garage Spaces: 3
Parking Features: Attached, Garage, Tandem Garage
Parking Total: 3
Utilities
Equipment
Heating: Central
Laundry Features: In Common Area, In Each Unit, Varies By Unit, Washer/Dryer Owned
Sewer: Public Sewer
Utilities: City
Water Source: Public
Based on information from San Francisco Association of REALTORS® and/or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by Prevu or the MLS. Information is provided exclusively for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing.
Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.