3900 Marsten AVE, BELMONT, CA 94002

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Active Under Contract

$5,800,000

bedrooms

bathrooms

square feet

Acreage

19.75

Open Houses

year built

Full Baths

Half Baths

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*NEW PRICE* RARE Peninsula Offering! One of the Last Open Parcels for Possible Luxury Development! Extraordinary opportunity to acquire lone of the last remaining open tract of land! Bucolic setting, sweeping natural beauty, unmatched future potential. Per the Seller, this property of approx. 19.75 acres may offer the possibility to create 6 to 8 parcels, each envisioned for a luxury estate home+ ADU. Buyer can choose to pursue and qualify under Cal. SB9, a parcel could potentially accommodate 2luxury estate homes + ADUs. *No development potential has been verified. This special property could lend itself to a range of uses: multi-generational living, income opportunity, a family compound, private gated community, premium investment, or signature development, all subject to Buyer investigation & City & County Building Division approval. Part of the acreage was formerly used as a farmhouse with horse stalls & corral, enhancing the property's character & versatility. The lands mature landscape, peaceful surroundings create an environment seldom available! Minutes to premier schools, transportation, SF/Silicon Valley, modern conveniences. A highly coveted location! Buyer must conduct their due diligence regarding buildability, development feasibility, allowable uses & lot size.

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MLS number: ML82028983

Listing status: Active Under Contract

Listing agent: Wong Real Estate Grp #70010239

Listing broker: Keller Williams Peninsula Estates (650) 627-3700

Last update: Tuesday, July 28 2026 at 5:34 p.m. EDT

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