18431 3rd Ave, Sonoma, CA 95476 Property Records

Sonoma County property record for 18431 3rd Ave, Sonoma, CA 95476

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 916 sqft · built 1955
Lot Size	0.126 acres (5,500 sqft)
Owner	Company Name on Record
Last Sale	$89,000 (Jul 2021)
Tax Bill	$5,866 (2025)
Deeds & Mortgages	Jan 2023 Transfer Jan 2022 Transfer + 4 more
Flood Zone	Zone X (minimal risk)
APN	`056-471-005-000`

Property Details

APN / Parcel Number

Primary APN	`056-471-005-000`
Alternative APN	`056-471-005`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	2 Rooms
Stories	1 Story
Building Area	916 sqft Living Area
Gross Area	1,252 sqft
1st Floor Area	916 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1955
Effective Year Built	Effective 1986
Lot Area	5,500 sqft (0.126 acres)
Garage Type	Attached
Garage Area	336 sqft
Parking Spaces	1 Parking Space
Porch	Porch

Utilities, Heating & Cooling

Cooling System	HVAC

Location & Zoning

Old Parcel Number	056-471-005
Street Address	18431 3RD AVE
City	SONOMA
State	CA
Zip	95476-3987
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R15UA
Legal Description	MAP 35 PG 7 BLK 7 LOT 13
Legal Subdivision	SUBDIVISION E OF BOYES SPRINGS PARK
Legal Block	1
Legal Lot Number	13
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	350 2ND ST E, SONOMA, CA 95476-5711
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Jan 26, 2023	Intrafamily Transfer, Transfer ACCOMMODATION
Jan 10, 2022	Intrafamily Transfer, Transfer FIRST AMERICAN TITLE COMPANY
Jul 20, 2021	Intrafamily Transfer, Transfer FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY
Jul 20, 2021	Grant Deed, Transfer FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY
Jul 20, 2021	Grant Deed, Transfer FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY
Sep 29, 2017	Intrafamily Transfer, Transfer · ARM FIRST REPUBLIC BANK

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jul 20, 2021 · Amount on Record
Deed Sale	Jul 20, 2021 · Amount on Record
Prior Sale	Jul 20, 2021 · Amount on Record
Deed Document Number	202182866
Prior Transfer Date	May 18, 2009
Prior Transfer Doc	0000049065
Record Updated	Oct 29, 2026

January 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SONOMA CA
Recording Date	Jan 26, 2023
Property Address	18431 3RD AVE, SONOMA, CA 95476-3987
Document Number	0000003300
Map Reference	MB 35 PG 7&8
Instrument Date	Jan 19, 2023
Instrument	2023003300
Transaction Type	Transfer
Record Updated	Jun 7, 2023
Title Company	ACCOMMODATION

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	2424 PINE ST, SAN FRANCISCO, CA 94115-2624

January 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SONOMA CA
Recording Date	Jan 10, 2022
Property Address	18431 3RD AVE, SONOMA, CA 95476-3987
Document Number	0000002193
Map Reference	MB 35 PG 7&8
Instrument Date	Jan 7, 2022
Instrument	2022002193
Transaction Type	Transfer
Record Updated	Jun 7, 2023
Title Company	FIRST AMERICAN TITLE COMPANY

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
Address	350 2ND ST E, SONOMA, CA 95476-5711

July 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SONOMA CA
Recording Date	Jul 20, 2021
Property Address	18431 3RD AVE, SONOMA, CA 95476-3987
Document Number	0000082867
Map Reference	MB 35 PG 7&8
Instrument Date	Jul 14, 2021
Instrument	2021082867
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

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
Address	2424 PINE ST, SAN FRANCISCO, CA 94115-2624

July 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SONOMA CA
Recording Date	Jul 20, 2021
Property Address	18431 3RD AVE, SONOMA, CA 95476-3987
Document Number	0000082865
Map Reference	MB 35 PG 7&8
Instrument Date	Jul 12, 2021
Instrument	2021082865
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Transaction

Amount	Amount Recorded
Tax	$97.90
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	350 2ND ST E, SONOMA, CA 95476-5711

July 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SONOMA CA
Recording Date	Jul 20, 2021
Property Address	18431 3RD AVE, SONOMA, CA 95476-3987
Document Number	0000082866
Map Reference	MB 35 PG 7&8
Instrument Date	Jul 12, 2021
Instrument	2021082866
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Transaction

Amount	Amount Recorded
Tax	$97.90
Amount Accuracy	Calculated from Transfer Tax
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	350 2ND ST E, SONOMA, CA 95476-5711

September 2017: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SONOMA CA
Recording Date	Sep 29, 2017
Property Address	18431 3RD AVE, SONOMA, CA 95476-3987
Document Number	0000076649
Map Reference	MAP35 PG7&8
Instrument Date	Sep 25, 2017
Instrument	2017076649
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	OLD REPUBLIC TITLE COMPANY

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	2424 PINE ST, SAN FRANCISCO, CA 94115-2624

Mortgage

Document Number	0000076650
Date	Sep 29, 2017
Instrument	2017076650

Lender

Name	FIRST REPUBLIC BANK
Type	Bank

Agreement

Type	ARM
Amount	Amount Recorded
Term	361 Months
Due	Oct 1, 2047

Interest

Rate Type	Adjustable Rate
Rate	3.8%
Type Change Date	Oct 1, 2024
Change Frequency	Monthly
Index	1-Month LIBOR
Max Rate	9.95%

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		$353,930 (+2%) Land $187,042 Building $166,888
2025	$5,866.00 (+4.15%)	$346,991 (+51.54%) Land $183,375 Building $163,616
2023	$5,632.00 (+35.38%)	$228,971 Land $111,392 Building $117,579
2022	$4,160.00

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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