South San Francisco Apartment
515 Baden Avenue, South San Francisco, CA 94080
7-unit apartment building in South San Francisco's downtown area.
Type:5+ Units / Five or More Units
Property size:
7,017 SFPrice / SF:
$341/SF- Added:
- Feb 12, 2026
- Days on Market:
- 108
- Last Refresh:
- Mar 13 at 11:02 am
Property Features for 515 Baden Avenue
General Information
- Standard status
- Active
- Size
- 7,017 SF
- Property subtype
- 5+ Units / Five or More Units
Building Details
- Year Built
- 1977
Listing agent Jim Cary License #01101007 (650) 291-1751
Listing office Reliance Realty Group (650) 291-1751
Listing date Feb 12, 2026
Source Compass
Displayed information is deemed reliable but is not guaranteed and should be independently verified.
All listing content including descriptions, pricing, images are the copyrighted material of Reliance Realty Group
HighLights
- Prime location in booming downtown South San Francisco, known as "The Biotech Capital of the World."
- Strong investment potential due to significant biotech expansion: 3.5 million sq ft existing, 10.6 million sq ft planned.
- Seven‑unit apartment building with a mix of unit types: one 2 bed/2 bath and six 1 bed/1 bath.
- Ample parking: 3‑car garage, 4‑car garage, and 7 tandem onsite spaces.
- Convenient access to amenities: shops, schools, parks, public transportation, and restaurants.
- Proximity to major employment centers: Genentech, Second Genome, Sutro Biopharma, and Kaiser Permanente.
Overview
Located in downtown South San Francisco, this 7-unit apartment building at 515 Baden Avenue features one 2-bed, 2-bath unit and six 1-bed, 1-bath units. Units 3, 4, and 6 include balconies. Parking amenities consist of a 3-car garage, a 4-car garage, and 7 tandem on-site parking spaces. The property is situated in a high-density area with access to shops, schools, parks, public transportation, restaurants, and other services. Major employment centers such as Genentech, Second Genome, Sutro Biopharma, and Kaiser Permanente are nearby. South San Francisco, known as "The Biotech Capital of the World," has 3.5 million square feet of biotech space with another 10.6 million square feet in planning, presenting an investment opportunity. The building has a size of 7017 square feet.
Local Financial Insights For Apartment 5plus
Simulate Cap Rate and NOI
NOI Build-Up
- Vacancy
- income lost from leasable area expected to sit empty during the year — subtracted from gross rent.
- EGI (Effective Gross Income)
- gross rent minus vacancy losses — the realistic income before paying operating costs.
- OpEx (Operating Expenses)
- recurring costs to operate the property (property tax, insurance, utilities, maintenance, management) — excludes financing and capital improvements.
- NOI (Net Operating Income)
- income a property generates after operating costs but before financing and taxes.
| Component | $ | $/SF |
|---|---|---|
| Gross rent | $366.3k | $52.20 |
| − Vacancy | −$19.0k | −$2.71 |
| EGI | $347.2k | $49.49 |
| − OpEx | −$156.3k | −$22.27 |
| NOI | $191.0k | $27.22 |
7,017 SF · lease $52.20/SF/yr · vacancy 5.20% · expense 45.00%
Alternative Uses
Best Use
Apartment 5plus
$2.73M
$2.39M – $3.18M
NOI $190,982 @ 7.0% cap · market cap 7.97%
Second Best
—
—
no second resolved use
Theoretical Best
Warehouse
$5.57M
$4.88M – $6.50M
NOI $390,158 @ 7.0% cap · market cap 16.29%
Zoning and permitted uses should be independently verified with local authorities.
Location Intelligence
Current Use by Public Records
Apartment buildings
Location Insight
- Map
- Local Demand
- City
- South San Francisco
- County
- San Mateo
- State
- California
- Longitude
- -122.4170748
- Latitude
- 37.6553896
Nearby Similar for Sale
FAQs
What type of property is this?
Apartment building - 7-unit apartment building in South San Francisco's downtown area.
Where is this apartment building located?
The property is located at 515 Baden Avenue South San Francisco, CA.
What is the asking price?
The asking price for this property is $2,395,000.
What are key features of this property?
This property features: Prime location in booming downtown South San Francisco, known as "The Biotech Capital of the World."; Strong investment potential due to significant biotech expansion: 3.5 million sq ft existing, 10.6 million sq ft planned.; Seven‑unit apartment building with a mix of unit types: one 2 bed/2 bath and six 1 bed/1 bath.
