125 E Sylvestris Drive
San Geronimo, CA 94963
Map
- 4 beds
- 5 baths
- 6,248 sqft
- ~11 acre lot
- $600 per sqft
- 1996 build
- – on site
Get ready for State Rock Ranch, an epic 10+ acre luxury estate in West Marin's San Geronimo Valley, tucked among majestic Redwoods. This isn't just a home, it's a lifestyle, a legacy, a total game-changer. Off-grid ready with cutting-edge tech and private access to the Bay Area's premier trails. Key Features: Direct gate to Giacomini Preserve, Cascade Canyon, Hunt Camp Fire Road, and MMWD trails to Mount Tam. Solar-powered with 50+ panels, lead-acid batteries, dual propane generators, and barely-used PG&E 400 amp service. Self-sufficient with 3 wells, pressurized septic, Starlink, and Comcast. Private trails for hiking, biking, or horseback that tie into Marin's wild open spaces. Wildlife? Deer, hawks, coyotes, owls, even the occasional black bear. A serpentine-lined pond flaunts California's state rock and rare eco-vibes. The residence: 4 beds, 5 baths, 6200 sqft,flex two-level layout ideal for multigenerational living or VIP guests. Glass-wrapped living room with Roy's Redwoods views that'll stop you cold. Gourmet kitchen for culinary masterpieces. Theater room with sound that hits hard. EV-ready garage with pre-wired lifts for your car collection. Fresh upgrades: black-trim windows, refinished deck, spray foam roof, security. This is your shot at unmatched solitude!
Last checked:
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Last updated Jun 1, 2025
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MLS# 325035641 —
The Building
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Year Built:1996
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Year Built Source:Assessor Auto-Fill
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Levels:2
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Levels:Two
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Roof:Elastomeric
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Patio And Porch Features:Front Porch, Uncovered Deck
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Security Features:See Remarks
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SqFt:6,248 Sqft
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SqFt Source:Assessor Auto-Fill
Interior
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Interior Features:Cathedral Ceiling, Skylight(s)
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# of Rooms:14
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Main Level:Bedroom(s), Dining Room, Family Room, Full Bath(s), Kitchen, Living Room, Primary Bedroom, Partial Bath(s)
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Kitchen Features:Breakfast Area, Island, Quartz Counter
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Dining Room Features:Breakfast Nook
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Miscellaneous:Balcony, Entry Gate
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Flooring:Tile
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Laundry Features:Dryer Included, Washer Included
Financial & Terms
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Sale Conditions:Offer As Is
Location
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Directions:Use GPS, google or apple maps. Do not disturb.
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Cross Street:Meadow Way
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Area:San Geronimo Valley
The Property
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Property Type:Residential
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Property Type:Single Family Residence
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Lot Description:Landscape Front, Secluded
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470012Lot SqFt:
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Lot Size Measurement:Acres
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Lot Size Source:Assessor Agent-Fill
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View:Mountains View, Panoramic View, Valley View
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10.7900Acres:
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Attach/Detach Home:Detached
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Driveway:Gated, Paved Driveway
Listing Agent
- Contact info:
- No listing contact info available
Taxes
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Assessors Parcel Number:169-341-02
Beds
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Total Bedrooms:4
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Master Bedroom Features:Closet, Sitting Area, Walk-In Closet 2+
Baths
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5Total Baths:
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4Full Baths:
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1Half Baths:
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Master Bath Features:Double Sinks, Skylight/Solar Tube, Soaking Tub, Stone
Heating & Cooling
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Heating:Radiant Floor
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Cooling:Other
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Electric:Battery Backup, 220 Volts
Utilities
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Description:Cable Available, Cable Connected, Electric, Off Grid, Propane Tank Owned, Public, Solar, Underground Utilities
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Water Source:Well
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Sewer:Septic System
Appliances
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Appliances:Dishwasher, Double Oven, Gas Cook Top, Gas Plumbed, Microwave
The Community
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Senior Age Requirement::No
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Spa:Yes
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Pool Description:No
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Spa Features:Spa/Hot Tub Personal
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HOA Fee Amount:$No
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Association:Sonoma
Parking
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Garage Spaces:4.00
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Total Parking Spaces:14.00
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Parking Features:Detached, See Remarks
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Off Street Spaces:10.00
Monthly cost estimate
Asking price
$3,749,000
| Expense | Monthly cost |
|---|---|
|
Mortgage
This calculator is intended for planning and education purposes only. It relies on assumptions and information provided by you regarding your goals, expectations and financial situation, and should not be used as your sole source of information. The output of the tool is not a loan offer or solicitation, nor is it financial or legal advice. |
$20,074
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| Taxes | N/A |
| Insurance | $1,030 |
| Utilities | $282 See report |
| Total | $21,386/mo.* |
| *This is an estimate |
Walk Score®
Provided by WalkScore® Inc.
Walk Score is the most well-known measure of walkability for any address. It is based on the distance to a variety of nearby services and pedestrian friendliness. Walk Scores range from 0 (Car-Dependent) to 100 (Walker’s Paradise).
Bike Score®
Provided by WalkScore® Inc.
Bike Score evaluates a location's bikeability. It is calculated by measuring bike infrastructure, hills, destinations and road connectivity, and the number of bike commuters. Bike Scores range from 0 (Somewhat Bikeable) to 100 (Biker’s Paradise).
Air Pollution Index
Provided by ClearlyEnergy
The air pollution index is calculated by county or urban area using the past three years data. The index ranks the county or urban area on a scale of 0 (best) - 100 (worst) across the United Sates.
Max Internet Speed
Provided by BroadbandNow®
This is the maximum advertised internet speed available for this home. Under 10 Mbps is in the slower range, and anything above 30 Mbps is considered fast. For heavier internet users, some plans allow for more than 100 Mbps.
Sale history
| Date | Event | Source | Price | % Change |
|---|---|---|---|---|
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6/1/25
Jun 1, 2025
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Price Changed | BAREIS | $3,749,000 | -11.8% |
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5/7/25
May 7, 2025
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Listed / Active | BAREIS | $4,250,000 |
