Peninsula Development
For Sale
$5,800,000
Pending
3900 Marsten Avenue, Belmont, CA 94002
Large peninsula parcel offering potential for residential subdivision or estate development, subject to buyer due diligence and approvals.
Property SizeContact for details
Lot Size19.75 Acres
Days on Market244
Property Features for 3900 Marsten Avenue
General Information
Standard status
Pending
Lot size
19.75 Acres
Property subtype
Lots/Land
Listing Agency:
KW Advisors
(650) 619-2790
Listed By:
Wong Real Estate Grp · License #70010239
(650) 619-2790
Source:
Exitrealty
Added: Dec 8, 2025
Changed: Aug 8
Last Checked: Aug 8 at 8:03AM
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 KW Advisors
Investment Insights
Based on property information with market context.
Offered for sale is a land parcel described by the seller as approximately 19.75 acres, presented as a rare peninsula opportunity. The property is characterized by mature landscaping and a peaceful, bucolic setting with sweeping natural beauty. The land includes an area that was formerly used as a farmhouse with horse stalls and a corral, adding to the site’s character and versatility.
The seller indicates the tract may be suitable for creating approximately 6 to 8 parcels, with each envisioned for a luxury estate home and an ADU. The buyer may also choose to pursue and qualify under California SB 9, where a parcel could potentially accommodate two luxury estate homes plus ADUs, depending on qualification. The seller further notes that no development potential has been verified, and all feasibility, allowable uses, and buildability are subject to buyer investigation and City and County Building Division approval.
This property is best suited to buyers planning a multi-generational residence, a family compound, or a private residential community, as well as those exploring subdivision or other residential concepts. Any development approach, including gated community plans or income-oriented living arrangements, should be validated through due diligence regarding permitting requirements, lot configuration, and development feasibility.
The seller indicates the tract may be suitable for creating approximately 6 to 8 parcels, with each envisioned for a luxury estate home and an ADU. The buyer may also choose to pursue and qualify under California SB 9, where a parcel could potentially accommodate two luxury estate homes plus ADUs, depending on qualification. The seller further notes that no development potential has been verified, and all feasibility, allowable uses, and buildability are subject to buyer investigation and City and County Building Division approval.
This property is best suited to buyers planning a multi-generational residence, a family compound, or a private residential community, as well as those exploring subdivision or other residential concepts. Any development approach, including gated community plans or income-oriented living arrangements, should be validated through due diligence regarding permitting requirements, lot configuration, and development feasibility.
Key Highlights
- Approximately 19.75‑acre peninsula parcel offering potential for residential subdivision or estate development, subject to buyer due diligence and approvals.
- Seller indicates potential to create 6 to 8 parcels for luxury estate homes with ADUs (no development potential verified).
- Buyer may be able to pursue Cal. SB9; seller notes that a parcel could potentially accommodate 2 luxury estate homes with ADUs (qualification/buildability to be verified).
Property Analytics
Property Profile
Current Use
Location Intelligence
Trade Area within ½ mile
120
Businesses Nearby
Explore this area
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
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.
Frequently Asked Questions
What type of property is this?
Residential land & home lot - Large peninsula parcel offering potential for residential subdivision or estate development, subject to buyer due diligence and approvals.
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 $5,800,000.
What are key features of this property?
This property features: Approximately 19.75‑acre peninsula parcel offering potential for residential subdivision or estate development, subject to buyer due diligence and approvals.; Seller indicates potential to create 6 to 8 parcels for luxury estate homes with ADUs (no development potential verified).; Buyer may be able to pursue Cal. SB9; seller notes that a parcel could potentially accommodate 2 luxury estate homes with ADUs (qualification/buildability to be verified).
