Rare Peninsula Land
For Sale
$7,999,999
3900 Marsten Avenue, Belmont, CA 94002
19.75 acres for luxury development in Belmont, CA
Property SizeContact for details
Lot Size19.75 Acres
Days on Market279
Property Features for 3900 Marsten Avenue
General Information
Standard status
Active
Lot size
19.75 Acres
Property subtype
LOTS AND LAND / Lots and Land
Amenities
No, No
https://www.3900marstenave.com/
Listing Agency:
Better Homes and Gardens Real Estate JFF
Listed By:
Debbie Wong · License #01074881
(650) 619-2790
Source:
Compass
Added: Dec 7, 2025
Changed: Sep 8
Last Checked: Sep 12 at 10:38AM
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 Better Homes and Gardens Real Estate JFF
Investment Insights
Based on property information with market context.
This 19.75-acre property in Belmont, California, presents a rare opportunity for potential luxury development. The land may offer the possibility to create 7 to 8 parcels, each envisioned for a luxury estate home with an additional dwelling unit (ADU). Subject to buyer qualification under California Senate Bill 9 (SB9), a parcel could potentially accommodate two luxury estate homes plus ADUs. The property could lend itself to a range of uses, including multi-generational living, income opportunity, a family compound, a private gated community, a premium investment, or a signature development, all subject to buyer investigation and City and County Building Division approval. Part of the acreage was formerly used as a farmhouse with horse stalls and a corral. The land's natural contours, mature landscape, and peaceful surroundings create a unique environment. The location is within minutes of schools, transportation, San Francisco, Silicon Valley, and modern conveniences. The property has a bike score of 7, indicating it is somewhat bikeable, a walk score of 44, indicating car dependence, and a transit score of 0, indicating no nearby transit.
Key Highlights
- Large 19.75‑acre parcel in a desirable peninsula location.
- Potential for luxury estate home development (7‑8 parcels, subject to verification).
- Possible SB9 development opportunity (2 homes + ADUs on a parcel, subject to verification).
Property Analytics
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Current Use
Location Intelligence
Trade Area within ½ mile
104
Businesses Nearby
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Business Placement
Demographics for 94002, CA
28,513
Population
11,307
Households
2.5
Avg Household Size
40
Median Age
69%
College-Educated
96%
High-School Grad
5.6 sq mi
ZIP Area
5,092
Density / Sq Mi
$204,573
Median Household Income
$120,322
Median Earnings
$2,889
Median Rent
$2,000,001
Median Home Value
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Frequently Asked Questions
What type of property is this?
Residential land & home lot - 19.75 acres for luxury development in Belmont, CA
Where is this residential land & home lot located?
The property is located at 3900 Marsten Avenue Belmont, CA.
What is the asking price?
The asking price for this property is $7,999,999.
What are key features of this property?
This property features: Large 19.75‑acre parcel in a desirable peninsula location.; Potential for luxury estate home development (7‑8 parcels, subject to verification).; Possible SB9 development opportunity (2 homes + ADUs on a parcel, subject to verification).
