18439 3rd Ave, Sonoma, CA 95476 Property Records

Sonoma County property record for 18439 3rd Ave, Sonoma, CA 95476

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 968 sqft · built 1951
Lot Size	0.126 acres (5,500 sqft)
Owner	Company Name on Record
Last Sale	$425,000 (Sep 2015)
Tax Bill	$7,377 (2025)
Deeds & Mortgages	Feb 2018 Transfer
Flood Zone	Zone X (minimal risk)
APN	`056-471-007-000`

Property Details

APN / Parcel Number

Primary APN	`056-471-007-000`
Alternative APN	`056-471-007`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	2 Rooms
Stories	1 Story
Building Area	968 sqft Living Area
Gross Area	1,199 sqft
1st Floor Area	968 sqft

Exterior

Year Built	Built 1951
Effective Year Built	Effective 2003
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	5,500 sqft (0.126 acres)
Garage Type	Attached
Garage Area	231 sqft
Parking Spaces	1 Parking Space
Porch	Porch

Utilities, Heating & Cooling

Cooling System	HVAC

Location & Zoning

Old Parcel Number	056-471-007
Street Address	18439 3RD AVE
City	SONOMA
State	CA
Zip	95476-3987
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R15UA
Legal Description	LOT 12 BLK 7 BOYES SPRINGS PARK SUB B
Legal Subdivision	BOYES SPRINGS PARK SUB
Legal Block	7
Legal Lot Number	12
Jurisdiction	SONOMA CA
Township / Civil Division	SONOMA
Census Block Group	1
Census Block	1020
Census Tract	150306

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	2236 SILVER FOX CIR, FAIRFIELD, CA 94534-1012
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Sep 30, 2015 · Amount on Record
Deed Sale	Sep 30, 2015 · Amount on Record
Deed Document Number	201585570
Prior Transfer Date	Feb 23, 2009
Prior Transfer Doc	0000018139
Record Updated	Oct 29, 2026

February 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SONOMA CA
Recording Date	Feb 9, 2018
Property Address	18439 3RD AVE, SONOMA, CA 95476-3987
Document Number	0000009357
Instrument Date	Feb 1, 2018
Instrument	9357
Transaction Type	Transfer
Record Updated	Feb 26, 2018
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	605 BARCELONA DR SONOMA CA 954764434, SONOMA, CA 95476-4434

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$513,169 (+2%) Land $241,491 Building $271,678
2025	$7,377.00 (+3.19%)	$503,107 (+4.04%) Land $236,756 Building $266,351
2023	$7,149.00 (+4.03%)	$483,572 Land $227,563 Building $256,009
2022	$6,872.00

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

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; 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	0.02% 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	VALLEY OF THE MOON WATER DISTRICT serves 23,140 people · EPA ID CA4910013
Water Source	Groundwater
Last State Inspection	Sep 2022
Lead	Under 1 ppb (2024–2026) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None 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 718 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
Starlink Satellite	280 / 30
AT&T DSL · Fiber in parts of the area	100 / 20

May also be available: T-Mobile.

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