644 3rd St W, Sonoma, CA 95476 Property Records

Sonoma County property record for 644 3rd St W, Sonoma, CA 95476

Property Summary

Property Type	Store with Apartments
Details	2 bd · 2 ba · 2,749 sqft · built 1986
Lot Size	0.241 acres (10,500 sqft)
Owner	Company Name on Record
Last Sale	$370,000 (Aug 1988)
Tax Bill	$16,221 (2025)
Deeds & Mortgages	May 2022 Transfer
Flood Zone	Zone X (minimal risk)
APN	`018-293-002-000`

Property Details

APN / Parcel Number

Primary APN	`018-293-002-000`
Alternative APN	`018-293-002`

Interior

Bedrooms	2 Beds
Full Baths	2 Baths
Total Rooms	2 Rooms
Units	2 Units
Stories	2 Stories
Building Area	2,749 sqft Gross Area

Exterior

Year Built	Built 1986
Effective Year Built	Effective 2004
Architectural Style	L-Shape
Construction Type	Wood
Fire Resistance	Wood or Wood & Steel Frame
Lot Area	10,500 sqft (0.241 acres)
Garage Type	Detached
Garage Area	800 sqft

Utilities, Heating & Cooling

Cooling System	HVAC

Location & Zoning

Old Parcel Number	018-293-002
Street Address	644 3RD ST W
City	SONOMA
State	CA
Zip	95476-6861
Property Category	Commercial
Property Type	Commercial > Retail > Store with Apartments
Local Zoning Code	CCH
Legal Block	2
Jurisdiction	SONOMA CA
Township / Civil Division	SONOMA
Census Block Group	2
Census Block	2001
Census Tract	150204

Owner

Source: Sonoma County records, as of September 1, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Company Name on Record
Mailing Address	644 3RD ST W, SONOMA, CA 95476-6861
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Aug 9, 1988 · Amount on Record
Deed Sale	Aug 9, 1988 · Amount on Record
Deed Document Number	198864975
Last Transfer Date	Oct 4, 1993
Transfer Doc	0000026696
Record Updated	Oct 29, 2026

May 2022: Transfer on Death Deed, Transfer

Document Type	Transfer on Death Deed
Jurisdiction	SONOMA CA
Recording Date	May 12, 2022
Property Address	644 3RD ST W, SONOMA, CA 95476-6861
Document Number	0000034032
Instrument Date	May 6, 2022
Instrument	2022034032
Transaction Type	Transfer
Record Updated	Jun 7, 2023

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	644 3RD ST W, SONOMA, CA 95476-6861

Tax Assessment & Valuation

Source: Sonoma County assessment roll, as of September 1, 2026

Property Jurisdictions

Type	Name
State	California
County	Sonoma County
Municipality	Sonoma City
Unified School District	Sonoma Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$779,207 (+2%) Land $227,044 Building $552,163
2025	$16,221.00 (+7.4%)	$763,930 (+4.04%) Land $222,593 Building $541,337
2023	$15,103.00 (+3.17%)	$734,267 Land $213,950 Building $520,317
2022	$14,639.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

Source: FEMA National Flood Hazard Layer, effective February 15, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 12 policies
Nearby Flood Policies	12 in force
Nearby Flood Claims	1 (2008)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Feb 2008

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.01% annual chance
Exposure	Indirect within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	CITY OF SONOMA serves 10,619 people · EPA ID CA4910012
Water Source	Groundwater
Last State Inspection	Jul 2024
Lead	Under 1 ppb (2021–2023) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	1 last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 662 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
AT&T Fixed Wireless · DSL · Fiber in parts of the area	100 / 20
T-Mobile Fixed Wireless	100 / 20