643 Oak Ln, Sonoma, CA 95476 Property Records

Sonoma County property record for 643 Oak Ln, Sonoma, CA 95476 · Last verified May 2026

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 2,015 sqft · built 1981
Lot Size	0.193 acres (8,400 sqft)
Owner	Individual Name on File
Last Sale	$2,050,000 (Nov 2021)
Tax Bill	$26,010 (2025)
Deeds & Mortgages	Nov 2021 Sale & Mortgage Dec 2020 Transfer + 3 more
Flood Zone	Zone X (moderate risk)
APN	`018-321-055-000`

Property Details

APN / Parcel Number

Primary APN	`018-321-055-000`
Alternative APN	`018-321-055`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	2,015 sqft Living Area
Gross Area	2,529 sqft
1st Floor Area	2,015 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1981
Effective Year Built	Effective 1993
Architectural Style	Custom Design
Construction Type	Wood
Lot Area	8,400 sqft (0.193 acres)
Garage Type	Attached
Garage Area	514 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Central

Location & Zoning

Old Parcel Number	018-321-055
Street Address	643 OAK LN
City	SONOMA
State	CA
Zip	95476-7147
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	81 FM 18-321-20 CW PT 18 PT TO PT 54 R/S 298-7
Legal Subdivision	ESTE MADERA SUBDIVISION NO 2
Legal Block	1
Jurisdiction	SONOMA CA
Township / Civil Division	SONOMA
Census Block Group	1
Census Block	1015
Census Tract	150204

Owner

Source: Sonoma County records · APN 018-321-055-000

Assessment roll updated April 13, 2026 · Last verified May 2026

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

Owner of Record	Individual Name on File
Mailing Address	643 OAK LN, SONOMA, CA 95476-7147
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
Nov 10, 2021	Grant Deed, Transfer · Conventional Mortgage GUARANTEED RATE INC
Dec 31, 2020	Quit Claim Deed, Transfer NOT AVAILABLE
Nov 16, 2020	Quit Claim Deed, Transfer NOT AVAILABLE
Nov 16, 2020	Quit Claim Deed, Transfer NOT AVAILABLE
Sep 04, 2020	Quit Claim Deed, Transfer NOT AVAILABLE

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Nov 10, 2021 · Amount on Record
Deed Sale	Nov 10, 2021 · Amount on Record
Prior Sale	Feb 20, 2014 · Amount on Record
Deed Document Number	2021122478
Prior Transfer Date	Nov 02, 2020
Prior Transfer Doc	0000107417
Record Updated	Jun 08, 2026

November 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SONOMA CA
Recording Date	Nov 10, 2021
Property Address	643 OAK LN, SONOMA, CA 95476-7147
Document Number	0000122478
Instrument Date	Nov 04, 2021
Instrument	2021122478
Transaction Type	Transfer
Record Updated	Jul 25, 2022
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$2,255.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	643 OAK LN, SONOMA, CA 95476-7147

Mortgage

Document Number	0000122479
Date	Nov 10, 2021
Instrument	2021122479

Lender

Name	GUARANTEED RATE INC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Dec 01, 2051

December 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SONOMA CA
Recording Date	Dec 31, 2020
Property Address	643 OAK LN, SONOMA, CA 95476-7147
Document Number	0000126246
Instrument Date	Dec 21, 2020
Instrument	126246
Transaction Type	Transfer
Record Updated	Jan 25, 2021
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	351 E NAPA ST SONOMA CA 954766722, SONOMA, CA 95476-6722

November 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SONOMA CA
Recording Date	Nov 16, 2020
Property Address	643 OAK LN, SONOMA, CA 95476-7147
Document Number	0000107417
Instrument Date	Nov 02, 2020
Instrument	107417
Transaction Type	Transfer
Record Updated	Dec 10, 2020
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer Partial Interest Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	351 E NAPA ST SONOMA CA 954766722, SONOMA, CA 95476-6722

November 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SONOMA CA
Recording Date	Nov 16, 2020
Property Address	643 OAK LN, SONOMA, CA 95476-7147
Document Number	0000107418
Instrument Date	Nov 02, 2020
Instrument	107418
Transaction Type	Transfer
Record Updated	Dec 10, 2020
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer Partial Interest Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	351 E NAPA ST SONOMA CA 954766722, SONOMA, CA 95476-6722

September 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SONOMA CA
Recording Date	Sep 04, 2020
Property Address	643 OAK LN, SONOMA, CA 95476-7147
Document Number	0000078638
Instrument Date	Aug 20, 2020
Instrument	78638
Transaction Type	Transfer
Record Updated	Sep 28, 2020
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Arm's Length Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants in Common
Address	353 E NAPA ST SONOMA CA 95476, SONOMA, CA 95476

Tax Assessment & Valuation

Source: Sonoma County records · Assessment roll updated April 13, 2026 · Last verified May 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

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

Year	Tax Bill	Assessed Value
2025	$26,010.00 (+4.52%) Homeowner's exemption	$2,175,476 (+4.04%) Land $1,114,268 Building $1,061,208
2023	$24,885.00 (+0.95%) Homeowner's exemption	$2,091,000 Land $1,071,000 Building $1,020,000
2022	$24,652.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Sonoma County (06097C), updated February 15, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060971502041, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Moderate
500-Year Floodplain	Yes
Flood Insurance Cost	Premium on Record median of 15 individual NFIP policies nearby
Nearby Flood Policies	15 in force
Nearby Flood Claims	8 (1978–2025)
Claims Outside the SFHA	6 of 8
Most Recent Claim	Feb 2025, rainfall accumulation
Claims By Storm	Severe Winter Storms, Flooding, Landslides, And Mudslides, Feb 2019 · 2 claims Severe Winter Storm, Mud & Land Slides, & Flooding, Jan 1993 · 2 claims

Wildfire

Wildfire Risk	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None beyond ember reach

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.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 579 locations within about half a mile of this property

Provider	Technology	Download / Upload (Mbps)
Xfinity	Cable	2,000 / 250
Verizon	Fixed Wireless	300 / 20
T-Mobile USA	Fixed Wireless	100 / 20
AT&T	DSL	100 / 20
Starlink	Satellite (low-earth orbit)	280 / 30

May also be available at this address: AT&T. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

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