3140 21st Street presents a unique turnkey opportunity to acquire a well-maintained and actively managed 28-unit apartment building in San Francisco's Inner Mission District. Owned and operated for 14 years by a TIC partnership of brokerage and investment professionals, the property is being sold due to the conclusion of the partnership rather than asset performance. Built in 1927, the building includes three (3) studios, fifteen (15) junior one-bedroom units, ten (10) one-bedroom units, and twenty (20) parking spacesan exceptionally rare amenity for a property of this size and location. The apartments feature a mix of classic and updated finishes, including hardwood floors, bay windows, abundant natural light, spacious closets, and renovated kitchens and bathrooms. Despite active management and ongoing improvements, existing rents remain below market. Additional amenities include a large side yard, owner storage and workshop space, and shared laundry facilities. Many of the property's most substantial improvements are already complete, including Soft-Story seismic work, Fire Alarm Ordinance compliance, roof and window upgrades, and underground storage tank removal. The boiler and steam-heating system was removed by permit and replaced with baseboard electric heating, while gas and electrical service remain separately metered. Located at 21st and Capp streets, the property sits within the Mission District's growing AI and technology ecosystem, part of San Francisco's emerging Arena.'' Residents enjoy convenient access to Mission Bay, SoMa, Yerba Buena, the Financial District, and Potrero Hill, along with nearby dining, shopping, nightlife, public transit, and major freeways. The property is offered with assumable financing of approximately $3.2 million at a 4.4% interest rate with approximately 12 years remaining. One ownership partner may also be willing to roll a portion of their equity alongside a new owner or sponsor. With extensive parking, completed capital improvements, below-market rents, and attractive financing, 3140 21st Street represents a compelling long-term investment opportunity.
For sale
$8,900,000
3140 21st St, San Francisco, CA 94110
25beds
0baths
17,625sqft
Multi Family
Built in 1927
-- sqft lot
$-- Zestimate®
$505/sqft
$-- HOA
What's special
Large side yardAbundant natural lightRenovated kitchens and bathroomsHardwood floorsExtensive parkingSpacious closetsBay windows
- 6 days
- 193
- 11
Zillow last checked:
Listing updated:
Listed by:
Brad Lagomarsino DRE #01058500 415-786-5246,
Colliers International 415-788-3100
Source: SFAR,MLS#: 426159967
Originating MLS: San Francisco Association of REALTORS
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 25
- Bathrooms: 0
Interior area
- Total structure area: 17,625
- Total interior livable area: 17,625 sqft
Property
Parking
- Total spaces: 20
- Parking features: Covered, Garage
- Has garage: Yes
Lot
- Size: 7,108 Square Feet
- Features: Corner Lot, Curb(s)
Details
- Parcel number: 3610014
- Special conditions: Standard
Construction
Type & style
- Home type: MultiFamily
- Property subtype: Multi Family
Condition
- Year built: 1927
Community & HOA
HOA
- Has HOA: No
Location
- Region: San Francisco
- Elevation: 0
Financial & listing details
- Price per square foot: $505/sqft
- Price range: $8.9M - $8.9M
- Date on market: 9/4/2026
- Cumulative days on market: 6 days
- Total actual rent: 0
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 9/4/2026 | Listed for sale | $8,900,000$505/sqft |
Source: | ||
Public tax history
Tax history is unavailable.
Monthly payment
Est. payment
Payment breakdown
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Neighborhood: Mission
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