18986 Sweet William Court, Sonoma, CA, 95476
About This Home
A rare offering in Diamond A blending modern luxury, quiet country charm, and resort-style amenities. 50 minutes from the Golden Gate Bridge, this beautifully remodeled single-level home sits on 1.77 acres and offers 2,328 sq. ft. of bright living space with 4 bedrooms and 2.5 baths. Enjoy remote work and long weekends with stunning valley views from the expansive deck featuring a hot tub and shaded canopy. Inside, the custom-designed kitchen boasts full slab counters, a French antique island, high-end appliances, and designer finishes throughout. Extensive recent improvements include new flooring, plumbing, high end fixtures, HVAC, water heater, electrical panel and wiring, exterior stucco, and interior and exterior paint, creating a home that is fully move in ready. Additional highlights include a wood-burning fireplace, Frame TV, and custom built-in units. Outside, a built-in barbecue and covered dining area complete the entertainment space. The home is smart-enabled with NEST thermostat, Ring camera, and fingerprint entry lock. A charming barn with 4 stables offers potential for a guest space, gym, wine cellar, or flex space. The land features 110 Cabernet vines (French Bordeaux clones) and 200 lavender plants, all on automatic irrigation. Residents enjoy access to the Diamond A Recreation Center with pool, bocce, tennis, paddle courts, riding trails, and a private park.
Getting Around
Car-Dependent
Very Limited Transit
Somewhat BikeableSchools
Construction
Condition
- Year built: 1972
Materials
- Roof: Composition
- Construction materials: Stucco
Type & Style
- Home type: SingleFamily
- Architectural style: Ranch
- Property subType: Single Family Residence
Interior
Appliances
- Appliances included: Built-In Gas Oven,Built-In Gas Range,Dishwasher,Disposal,Free-Standing Refrigerator,Range Hood,Wine Refrigerator,Dryer,Washer
- Laundry features: Cabinets,Inside Room
Basement
- Basement: None
Bathroom
- Level: Main
Bedroom
- Level: Main
Bedrooms & Bathrooms
- Bedrooms: 4
- Bathrooms: 3
- Full bathrooms: 2
- 1/2 bathrooms: 1
Dining Room
- Level: Main
Family Room
- Level: Main
Features
- Open Beam Ceiling
- Number of fireplaces: 1
- Fireplace features: Wood Burning
- Fireplace: Yes
Heating & Cooling
- Heating features: Central
- Cooling features: Central Air
Interior Area
- Total structure area: 2,328
- Total interior livable area: 2,328 sqft
Kitchen
- Features: Breakfast Area,Kitchen Island,Slab Counter
- Level: Main
Living Room
- Level: Main
Master Bedroom
- Level: Main
Property
Details
- Parcel number: 064080010000
- Special condition: Offer As Is
Features
- Stories: 1
- Exterior features: Built-In Barbeque
- Has spa: Yes
- Spa features: Private
- Has view: Yes
- View description: Bay,Forest,Valley
- Has water view: Yes
- Water view: Bay
Lot
- Lot size: 1.77 Acres
- Features: Landscaped,Landscape Front
Parking
- Total spaces: 2
- Parking features: Attached,Electric Vehicle Charging Station(s)
- Has garage: Yes
- Attached garage spaces: 2
- Covered spaces: 2
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 | $10,087 | $121,044 |
| Home Insurance * | $518 | $6,216 |
| Property Taxes | $1,315 | $15,780 |
| Electricity | $499 | $5,990 |
| Total | $12,419 | $149,028 |
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)
Price History
| Date | Event | Price |
|---|---|---|
| 2026-04-16 | Listed for sale | $1,995,000 |
| 2025-10-06 | Listing removed | $2,350,000 |
| 2025-09-13 | Price change | $2,350,000 |
| 2025-04-29 | Listed for sale | $2,450,000 |
| 2022-06-21 | Sold | $1,385,000 |
| 2022-06-17 | Pending sale | $1,475,000 |
| 2022-06-02 | Contingent | $1,475,000 |
| 2022-05-26 | Price change | $1,475,000 |
| 2022-04-18 | Listed for sale | $1,600,000 |
| 2019-08-19 | Listing removed | $1,133,000 |
| 2019-07-12 | Price change | $1,133,000 |
| 2019-06-13 | Price change | $1,148,000 |
| 2019-05-20 | Listed for sale | $1,199,000 |
| 2016-10-02 | Listing removed | $1,080,000 |
| 2016-07-29 | Price change | $1,080,000 |
| 2016-06-01 | Listed for sale | $1,137,000 |
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