Prime San Francisco Redevelopment
34 Mason Street, San Francisco, CA 94102
For Sale
$4,500,000
Mixed-use building in downtown San Francisco, ideal for redevelopment.
Property Size12,375 SF
Lot Size0.08 Acres
Price / SF$363.64
Days on Market295
Property Features for 34 Mason Street
General Information
Standard status
Size
Lot size
Property subtype
Site & Location
Neighborhood
Amenities
BART Nearby
City Lot
Hotel/Motel Nearby
Light Rail Nearby
Near Public Transit
Restaurant Nearby
Shopping Nearby
Building Details
Year Built
Listing Agency:
INTERO REAL ESTATE SERVICES
(650) 589-1000
Listed By:
MINDY TSOI
(415) 846-3506
Source:
Corcoran
Added: Jan 24
Changed: Aug 21
Last Checked: Oct 26 at 8:09AM
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 INTERO REAL ESTATE SERVICES
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Investment Insights
Based on property information with market context.
Located in downtown San Francisco, 34-38 Mason Street is a 12,375 sq. ft. building constructed in 1907. The property features a brick facade and spans three floors. Currently, the ground floor is occupied by a restaurant, the second floor houses an engineering company, and the third floor contains vacant office space. The property is zoned C-3-G (Downtown Commercial General), which permits residential conversion. This opens possibilities for hybrid use, partial office-to-residential transformation, or full residential redevelopment. The location is near Powell BART, Market Street transit lines, Union Square, the financial district, Moscone Center, and retail and hospitality destinations. The building's features include expansive windows, open floor plates, historic brick details, and generous ceiling heights, making it suitable for adaptive re-use and modern living or workspace concepts. The property offers potential for residential conversion to 26 units or hybrid conversion to 18 units plus retail.
Key Highlights
- Prime downtown San Francisco location near Powell BART, Market Street transit, Union Square, and the Financial District.
- Flexible C‑3‑G zoning allows for residential conversion, hybrid use, or full redevelopment.
- Potential for 26 residential units or 18 units plus retail.
Financial Insights
Estimated NOI and Cap Rate
NOI / Yr
$276,117
Cap Rate
6.14%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$5,522,340
$5.5M
Cap Rate 7%
$3,944,529
$3.9M
Cap Rate 9%
$3,067,967
$3.1M
Market Conditions
NOI Build-Up for 12,375 SF
Gross rent
$519.8K $42.00/SF
− Vacancy
−$78.0K −$6.30/SF
EGI
$441.8K $35.70/SF
− OpEx
−$165.7K −$13.39/SF
NOI
$276.1K $22.31/SF
Area
San Francisco, CA
Vacancy
15.00%
Lease Rate
$42.00 /SF/Yr
Expense Ratio
37.50%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$5,522,340
Cap Rate 7%
$3,944,529
Cap Rate 9%
$3,067,967
Alternative Uses
Best Use
Mixed Use
$3.94M
$3.45M – $4.60M
NOI $276,117 @ 7.0% cap · market cap 6.14%
Second Best
—
—
no second resolved use
Theoretical Best
Multifamily LT 5
$6.28M
$5.50M – $7.33M
NOI $439,802 @ 7.0% cap · market cap 9.77%
Zoning and permitted uses should be independently verified with authorities.
How Realmo checks its estimates
Property Analytics
Who owns this building?
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Current Use
Location Intelligence
Trade Area within ½ mile
25,837
Businesses Nearby
Explore this area
Business Placement
Demographics for 94102, CA
39,432
Population
23,153
Households
1.7
Avg Household Size
40
Median Age
42%
College-Educated
81%
High-School Grad
0.7 sq mi
ZIP Area
56,331
Density / Sq Mi
$64,781
Median Household Income
$55,873
Median Earnings
$1,517
Median Rent
$996,300
Median Home Value
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Cap Rate, Value Estimation, Potential NOI and more
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Market
Average Price Trend$/SF for Mixed-use properties in San Francisco, CA
Properties on Market for Mixed-use properties in San Francisco
Frequently Asked Questions
What type of property is this?
Mixed-use property - Mixed-use building in downtown San Francisco, ideal for redevelopment.
Where is this mixed-use property located?
The property is located at 34 Mason Street San Francisco, CA.
What is the asking price?
The asking price for this property is $4,500,000.
What are key features of this property?
This property features: Prime downtown San Francisco location near Powell BART, Market Street transit, Union Square, and the Financial District.; Flexible C‑3‑G zoning allows for residential conversion, hybrid use, or full redevelopment.; Potential for **26 residential units or 18 units plus retail**.
