




3100 Sonoma Mountain Rd, Petaluma, CA, 94954
About This Home
The Summit is a world entirely of its own, offering an unmatched level of privacy, seclusion, and self-sufficiency in one of Northern California's most breathtaking natural settings. Surrounded by panoramic views stretching from Mt. Tamalpais and Mt. Diablo to San Pablo Bay and the San Francisco skyline, the estate was designed as a private retreat for those seeking space, independence, and complete escape from the outside world. Rolling meadows, lakes, canyon systems, swimming holes, native oak groves, and millions of seasonal daffodils create an environment that feels both expansive and deeply serene. The property includes multiple residences, a 12-car garage, barns, and three state-of-the-art greenhouses, allowing for multi-generational living, private events, agricultural use, or wellness retreats. Extensive infrastructure, water resources, backup power systems, and fire mitigation measures provide a rare sense of security and long-term sustainability. The Summit presents a once-in-a-generation opportunity to own a sovereign estate where privacy, natural beauty, and self-reliance exist in complete harmony.
Getting Around
Schools
Construction
Condition
- Year built: 2016
Materials
- Foundation: Other
- Roof: Metal
- Construction materials: Brick,Concrete
Type & Style
- Home type: SingleFamily
- Architectural style: Contemporary
- Property subType: Single Family Residence,Residential
Interior
Appliances
- Appliances included: Dishwasher,Range Hood,Double Oven,Built In Gas Oven/Range,Wine Refrigerator,Dryer,Washer
- Laundry features: Inside
Bathroom
- Features: DoubleSinks, Marble, Stone, TubinPrimaryBedroom
Bedroom
- Features: WalkinCloset, PrimaryBedroomonGroundFloor
Bedrooms & Bathrooms
- Bedrooms: 10
- Bathrooms: 10
- Full bathrooms: 7
- 1/2 bathrooms: 3
Dining Room
- Features: DiningFamilyCombo, FormalDiningRoom
Family Room
- Features: KitchenFamilyRoomCombo
Features
- High Ceilings,Open Beam Ceiling
- Flooring: Stone,Tile,Wood
- Number of fireplaces: 3
- Fireplace features: Gas Starter,Living Room
Heating & Cooling
- Heating features: Central Forced Air,2 plus Zones,Propane,Radiant,Radiant Floor
- Cooling features: Central Air,Zoned
Interior Area
- Total structure area: 14,966
- Total interior livable area: 14,966 sqft
Kitchen
- Features: Countertop_Marble, Island, Pantry
Property
Details
- Parcel number: 136450001
- Zoning: SFR
- Special condition: Standard
Features
- Has view: Yes
- View description: City Lights,Mountain(s),Vineyard
Lot
- Lot size: 1,119 Acres
Parking
- Total spaces: 4
- Parking features: Garage Door Opener
- Has garage: Yes
- Attached garage spaces: 4
- Covered spaces: 4
Climate Risk is Financial Risk
Every home has a financial story beyond the listing price. Below, you’ll see the climate risks that could affect this property — and in Bills & Affordability, how those risks may influence repairs, insurance, utilities, and long-term value.
Biggest Threats for This Home
- Earthquake
- Inland Flooding
- Drought
- Wildfire
- Landslide
How This Home’s Risks Compare
FEMA Declared Disasters in Sonoma County and California
Understanding the Costs
Financial advisors generally recommend spending no more than 30% of your gross household income on housing costs. In practice, many households stretch to 35% or beyond — especially in high-cost markets.
Estimated Costs Today
| Monthly | Annual | |
|---|---|---|
| Mortgage | $202,236 | $2,426,832 |
| Home Insurance * | $7,929 | $95,148 |
| Property Taxes | $21,663 | $259,956 |
| Electricity | $3,209 | $38,511 |
| Total | $235,037 | $2,820,444 |
Income You'd Need if You Spent...
California FAIR Plan Programs
How Costs Could Change Over Time
Climate risk is quickly impacting all of the major home ownership costs. Adjust the growth rates and percentage of income spent on housing below to see how your housing costs could change over the next 10 years — and what income you'd need to keep up.
Comparing Against the Market
Price Per Sq Ft
vs Other Active Listings
Avg $/sqft
vs Homes Sold Last Month
Median $/sqft
Current Market Trends
Median Price Per Square Foot
The median price per square foot of homes sold in this area each month. Compare this to this listing's price per square foot to gauge whether the home is priced in line with recent sales.
Historicals for This Listing
Zestimate History ($/sqft)
No zestimate history available
Price History
| Date | Event | Price |
|---|---|---|
| 2026-05-20 | Listed for sale | $39,995,000 |
For Sale by Agent
