Date
Details
Price
Change
Source
11/14/2011
Sold
$300,000
—
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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$810,000 Just Listed
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Sunday 4/5 1:00 PM - 3:00 PM
550 Thomson Avenue,Sonoma, CA 95476550 Thomson AvenueSonomaCA95476
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Property Description
Sonoma Oasis. Welcome to 550 E Thomson, a charming retreat located in desirable Boyes Hot Springs, in the heart of lovely Sonoma Valley. Nestled in a friendly neighborhood, this adorable, two bedroom, plus a spacious officе/flex room , one bath home has a large kitchen with a butcher block island offering storage and seating, and separate pantry closet. Charming wood floors throughout, beam ceilings, stone fireplace with mantle and multiple skylights offering tons of natural light in every room. Step outside to a very private outdoor oasis with a large patio for dining and conversation, a sparkling in ground Cocktail Pool with perimeter bench seating, soothing fountains and heated for year-round enjoyment bordered by lush landscaping offering privacy. A detached Studio guest house with a full bathroom, kitchen prep area, and private deck and lovely open beam ceilings, offers flexible living for extended family or weekend guests. Freshly painted exterior of both units and corrected all pest report section 1 repair. Close to neighborhood restaurants, shopping and recreation. A rare Sonoma gem, w/ so much to offer! Yours to love....
Full Property Details
Full Property Details for 550 Thomson Ave
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General
- Price: $810,000
- Status: Active
- Type: Single Family
- Source: BAREIS
- MLS ID: 326026435
- Updated: 3/31/2026
- Added to Site: 2 day(s) ago
Interior
- Rooms/Areas: Bonus Room, Office
- Interior Features: Beamed Ceiling
- Fireplace: Yes
- Number of Fireplaces: 1
- Fireplace(s): Family Room, Stone, Wood-Burning
- Appliances: Disposal, Free Standing Gas Range, Free Standing Refrigerator, Tankless Water Heater
- Flooring: Simulated Wood, Wood
Rooms
Bathrooms
- Total Bathrooms: 1
- Full Bathrooms: 1
- Bathroom Features: Skylight/Solar Tube
Bedrooms
- Total Bedrooms: 2
Other Rooms
- Kitchen: Butcher Block Counters, Pantry Closet, Skylight(s)
- Laundry: Dryer Included, Laundry Closet, Washer Included
Additional Information
- Pool: Yes
- Pool Description: Built-In, Gas Heat, Pool Sweep, Vinyl Liner
- Security/Safety: Carbon Mon Detector, Security System Leased
Parking
- Garage: Yes
- Garage Description: No Garage
Location
- Cross Streets: 4th ave
- Driving Directions: Highway 12 to Thomson. Towards the end..
- Direction Faces: North
School Information
- School District: Calaveras
Heating & Cooling
- Cooling Type: Ceiling Fan(s), Central
- Heating Type: Central
Utilities
- Sewer: Public Sewer
- Water: Public
- Utility Description: Cable TV Available, Internet Available, Natural Gas Connected, Public
Structural Information
- Architectural Style: Traditional
- Construction: Wood
- Foundation: Concrete
- Roof: Composition
- Windows: Dual Pane Full
- Stories/Levels: 1
- Square Feet: 1,202
- Sq. Ft. Source: Assessor Auto-Fill
- Year Built: 1952
Lot Features
- Lot Size (Acres): 0.1148
- Lot Size (Sq. Ft.): 5,001
- Lot Description: Auto Sprinkler F&R, Landscape Front
- Fencing (Description): Fenced, Full, Wood
Disclosures and Reports
- Special Conditions: None
Listing provided by Sotheby's International Realty, Bari Williams
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Listing agent
— 550 Thomson Ave —
Bari Williams
Sotheby's International Realty
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Schools
Schools serving 550 Thomson Ave
School District:Sonoma Valley Unified School District
| Name | Grades | Distance |
|---|---|---|
Flowery Elementary School 17600 Sonoma Highway, Sonoma, CA 95476 | K-5 | 0.8 mi |
Adele Harrison Middle School 1150 BRd.way, Sonoma, CA 95476 | 6-8 | 2.4 mi |
Sonoma Valley High School 20000 BRd.way, Sonoma, CA 95476 | 9-12 | 2.2 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 550 Thomson Ave
Tax History
Tax History for 550 Thomson Ave
Year
Property Taxes
Change
Tax Assessment
Change
2025
$6,113
-2%
$387,478
2%
2024
$6,222
2%
$379,881
2%
2023
$6,104
3%
$372,433
2%
2022
$5,905
1%
$365,132
2%
2021
$5,835
5%
$357,974
1%
2020
$5,558
3%
$354,305
2%
2019
$5,400
2%
$347,359
2%
2018
$5,275
4%
$340,549
2%
2017
$5,067
8%
$333,873
2%
2016
$4,710
1%
$327,328
2%
2015
$4,684
4%
$322,412
2%
2014
$4,509
1%
$316,098
—
2013
$4,462
—
$314,670
—
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 550 Thomson Ave
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Sold provided by Vanguard Properties, Chad Rummonds
Sold provided by Vanguard Properties, Chad Rummonds
550 Thomson Avenue, Sonoma, CA 95476 (MLS# 326026435) is a Single Family property with 2 bedrooms and 1 full bathroom. 550 Thomson Avenue is currently listed for $810,000 and was received on March 30, 2026. Want to learn more about 550 Thomson Avenue? 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.