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4 Beds
5 Baths
6,248 sqft

$2,999,999

125 E Sylvestris Drive, San Geronimo CA, 94963

Price per sqft$480.15
Built in1996
Property size6,248 sqft
Property typeResidential

Overview

Active

Listed Apr 30, 2026

Updated Aug 10

Get ready for State Rock Ranch, an epic 10+ acre luxury estate in West Marin's San Geronimo Valley, tucked among towering redwoods. This isn't just a home, it's a lifestyle, a legacy, a total game-changer. Comprised of two parcels, this offering presents a rare opportunity to build a second residence and create a true private compound in one of Marin's most serene settings. Direct gate access to Giacomini Preserve, Cascade Canyon, Hunt Camp Fire Road, and MMWD trails leading to Mount Tam. Off-grid ready with 50+ solar panels, lead-acid batteries, dual propane generators, and lightly used PG&E 400 amp service. Fully self-sufficient with 3 wells, pressurized septic, Starlink, and Comcast. Private trails wind through the property, connecting to Marin's vast open space. Wildlife is abundant with deer, hawks, owls, coyotes, and more.A serpentine lined pond showcases California's state rock and unique natural beauty.The residence offers 4 beds, 5 baths, including 6,200 sq ft of living space with a flexible two-level layout ideal for multigenerational living or guests. Highlights include a glass-wrapped living room with stunning views of Roy's Redwoods, gourmet kitchen, theater room, and EV-ready garage with pre-wired lifts. Recent upgrades include black-trim windows, refinished deck, spray foam roof, and enhanced security.A rare chance to own unmatched privacy with expansion potential.

$19,959/mo

Est. mortgage payment based on a $2,999,999 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
326033463

Interior Features

Bedrooms
4
Bathrooms
5
Cooling
Yes
Heating
Yes
Basement
Yes

Exterior Features

Lot Size
10.79 Acres

Other Property Details

Garage
Yes
View
Yes
55+/Senior Community
No

Listed by Peter Maselli (DRE #02054402) with Coldwell Banker Realty

Listing Contact:  

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