Date
Details
Price
Change
Source
6/17/2022
Sold
$1,385,000
—
Public Record
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
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$1,995,000 Just Listed
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Property Description
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.
Full Property Details
Full Property Details for 18986 Sweet William Ct
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General
- Price: $1,995,000
- Status: Active
- Type: Single Family
- Source: BAREIS
- MLS ID: 326022164
- Updated: Today (4/16/2026)
- Added to Site: Today
Interior
- Number of Rooms: 10
- Interior Features: Beamed Ceiling
- Fireplace: Yes
- Number of Fireplaces: 1
- Fireplace(s): Wood-Burning
- Appliances: Built-In Gas Oven, Built-In Gas Range, Dishwasher, Disposal, Free Standing Refrigerator, Hood Over Range, Wine Refrigerator
Rooms
Bathrooms
- Total Bathrooms: 3
- Full Bathrooms: 2
- Half Bathrooms: 1
Bedrooms
- Total Bedrooms: 4
Other Rooms
- Kitchen: Breakfast Area, Island, Slab Counter
- Laundry: Cabinets, Dryer Included, Inside Room, Washer Included
Additional Information
- Security/Safety: Video System
Exterior
- Exterior Features: Built-In Barbeque
Parking
- Garage: Yes
- Garage Spaces: 2
- Garage Description: Attached, EV Charging
Location
- Cross Streets: Spring
- Driving Directions: Follow CA-37 E to CA-121 N/Arnold Dr in Sonoma County. Sharp right onto CA-121 N/Arnold Dr (signs for Sonoma/Raceway) Follow CA-116 W to Arnold Dr Continue on Arnold Dr. Take Grove St to Sweet William Ct.
Heating & Cooling
- Cooling Type: Central
- Heating Type: Central
Utilities
- Sewer: Septic System
- Water: Shared Well
- Utility Description: Cable TV Available, Electricity, Propane, Propane Tank Leased
Structural Information
- Architectural Style: Ranch
- Construction: Stucco
- Roof: Composition
- Stories/Levels: 1
- Square Feet: 2,328
- Sq. Ft. Source: Not Verified
- Year Built: 1972
Lot Features
- Property View: Bay, Forest, Valley
- Lot Size (Acres): 1.77
- Lot Size (Sq. Ft.): 77,101
- Lot Description: Landscape Back, Landscape Front
Disclosures and Reports
- Special Conditions: Offer As Is
Listing provided by Golden Gate Sotheby's International Realty, Kristie Eddy and Compass, Chris Meadors
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Listing agents
— 18986 Sweet William Ct —
Kristie Eddy
Golden Gate Sotheby's International Realty
Chris Meadors
Compass
NMLS#: 1598647Get Pre-Approved Today
Schools
Schools serving 18986 Sweet William Ct
School District:Sonoma Valley Unified School District
| Name | Grades | Distance |
|---|---|---|
El Verano Elementary School 18606 Riverside Drive, Sonoma, CA 95476 | K-5 | 3.9 mi |
Altimira Middle School 17805 Arnold Drive, Sonoma, CA 95476 | 6-8 | 3.2 mi |
Sonoma Valley High School 20000 BRd.way, Sonoma, CA 95476 | 9-12 | 5.6 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 18986 Sweet William Ct
Tax History
Tax History for 18986 Sweet William Ct
Year
Property Taxes
Change
Tax Assessment
Change
2025
$17,048
4%
$1,469,772
4%
2023
$16,422
116%
$1,412,700
123%
2022
$7,611
2%
$633,994
2%
2021
$7,452
—
$621,563
1%
2020
$7,416
4%
$615,191
2%
2019
$7,155
1%
$603,130
2%
2018
$7,070
2%
$591,305
2%
2017
$6,960
6%
$579,711
2%
2016
$6,565
3%
$568,345
2%
2015
$6,362
1%
$559,809
2%
2014
$6,270
1%
$548,844
—
2013
$6,212
—
$546,364
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 18986 Sweet William Ct
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- Single Family
- Active
- Updated 3 hours ago
- 4Beds
- 3Total Baths
- 1,550Sq. Ft.
Listing provided by W Real Estate, Amanda Shone and Sotheby's International Realty, Tina Shone
- Single Family
- Active
- Updated 5 days ago
- 4Beds
- 4Total Baths
- 3,232Sq. Ft.
Listing provided by Golden Gate Sotheby's International Realty, Sara Downs and Golden Gate Sotheby's International Realty, Alisa Wynd
- Single Family
- Active
- 3Beds
- 2Total Baths
- 2,088Sq. Ft.
Listing provided by Douglas Elliman of California, Inc., Christine Krenos and Douglas Elliman of California, Inc., Joseph P Zichelle
- Single Family
- Active
- 3Beds
- 3Total Baths
- 2,739Sq. Ft.
Listed by Compass, Duncan C Wheeler
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- Single Family
- Active
- Updated 3 days ago
- 5Beds
- 7Total Baths
- 7,740Sq. Ft.
Listing provided by Sotheby's International Realty, Caroline Sebastiani and Sotheby's International Realty, Charlie Luna
- Single Family
- Active
- Updated 2 hours ago
- 3Beds
- 2Total Baths
- 1,125Sq. Ft.
Listing provided by Reserve Properties, Mara Kahn
- Single Family
- Active
- Updated 3 days ago
- 8Beds
- 10Total Baths
- 11,179Sq. Ft.
Listed by John Reid (CalRE#: 01994802) (707) 328-0101 and Tim Allen (CalRE#: 00891159) (831) 214-1990
- Single Family
- Active
- Updated 1 day ago
- 2Beds
- 1Total Bath
- 874Sq. Ft.
Listing provided by Coldwell Banker Brokers of the Valley, Casey A Morse and Coldwell Banker Brokers of the Valley, Virginia Morse
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- Single Family
- Active
- Updated 7 days ago
- 1Bed
- 2Total Baths
- 1,190Sq. Ft.
Listing provided by Compass, Monica J Bugica and Vanguard Properties, Sonia Quintero
- Single Family
- Active
- Updated 1 day ago
- 5Beds
- 4Total Baths
- 5,315Sq. Ft.
Listing provided by W Real Estate, Will Lance
- Single Family
- Active
- Updated 5 days ago
- 5Beds
- 6Total Baths
- 3,340Sq. Ft.
Listing provided by Sotheby's International Realty, Daniel Casabonne
- Single Family
- Active
- Updated 5 days ago
- 4Beds
- 4Total Baths
- 3,232Sq. Ft.
Listing provided by Golden Gate Sotheby's International Realty, Sara Downs and Golden Gate Sotheby's International Realty, Alisa Wynd
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- Single Family
- Closed
- 2Beds
- 2Total Baths
- 1,704Sq. Ft.
Listing provided by Compass, Rick Avery
Sold provided by Compass, Maurice Tegelaar and Compass, Matt R Sevenau
Sold provided by Compass, Maurice Tegelaar and Compass, Matt R Sevenau
- Single Family
- Closed
- 5Beds
- 4Total Baths
- 3,518Sq. Ft.
Listing provided by Sotheby's International Realty, Alex Yankee
Sold provided by W Real Estate, Hayley Bennett
Sold provided by W Real Estate, Hayley Bennett
- Single Family
- Closed
- 5Beds
- 3Total Baths
- 2,428Sq. Ft.
Listing provided by Sotheby's International Realty, Alex Yankee
Sold provided by Compass, Matt R Sevenau and Vanguard Properties, Josh Dempsey
Sold provided by Compass, Matt R Sevenau and Vanguard Properties, Josh Dempsey
- Single Family
- Closed
- 2Beds
- 3Total Baths
- 2,590Sq. Ft.
Listing provided by Sotheby's International Realty, Maria Lounibos
Sold provided by Sotheby's International Realty, Jennifer L Parr
Sold provided by Sotheby's International Realty, Jennifer L Parr
18986 Sweet William Court, Sonoma, CA 95476 (MLS# 326022164) is a Single Family property with 4 bedrooms, 2 full bathrooms and 1 partial bathroom. 18986 Sweet William Court is currently listed for $1,995,000 and was received on April 16, 2026. Want to learn more about 18986 Sweet William Court? Do you have questions about finding other Single Family real estate for sale in Sonoma? You can browse all Sonoma real estate or contact a Coldwell Banker agent to request more information.