421 Black Oak Dr, Petaluma, CA 94952 Property Records

Sonoma County property record for 421 Black Oak Dr, Petaluma, CA 94952

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,747 sqft · built 1993
Lot Size	0.328 acres (14,288 sqft)
Owner	Company Name on Record
Last Sale	$869,000 (Mar 2005)
Tax Bill	$14,262 (2025)
Deeds & Mortgages	Apr 2022 Transfer Feb 2017 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`019-540-014-000`

Property Details

APN / Parcel Number

Primary APN	`019-540-014-000`
Alternative APN	`019-540-014`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	4 Rooms
Stories	2 Stories
Building Area	2,747 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1993
Effective Year Built	Effective 1993
Architectural Style	Custom Design
Construction Type	Wood
Lot Area	14,288 sqft (0.328 acres)

Location & Zoning

Old Parcel Number	019-540-014
Street Address	421 BLACK OAK DR
City	PETALUMA
State	CA
Zip	94952-6129
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	CITYPE
Legal Description	LOT 136
Legal Subdivision	WESTRIDGE UNIT 4
Legal Block	3
Legal Lot Number	136
Jurisdiction	SONOMA CA
Township / Civil Division	PETALUMA
Census Block Group	3
Census Block	3002
Census Tract	150702

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	421 BLACK OAK DR, PETALUMA, CA 94952-6129
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Apr 1, 2022	Intrafamily Transfer, Transfer
Feb 6, 2017	Deed of Trust, Mortgage · Conventional Mortgage USAA

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Mar 28, 2005 · Amount on Record
Deed Sale	Mar 28, 2005 · Amount on Record
Deed Document Number	200540555
Prior Transfer Date	Dec 26, 1997
Prior Transfer Doc	0000120242
Record Updated	Oct 29, 2026

April 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SONOMA CA
Recording Date	Apr 1, 2022
Property Address	421 BLACK OAK DR, PETALUMA, CA 94952-6129
Document Number	0000023698
Map Reference	MB 489 PG 1-17
Instrument Date	Mar 30, 2022
Instrument	2022023698
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	Family Trust
Address	421 BLACK OAK DR, PETALUMA, CA 94952-6129

February 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SONOMA CA
Property Address	421 BLACK OAK DR, PETALUMA, CA 94952-6129
Document Number	0000012340
Instrument Date	Feb 6, 2017
Transaction Type	Mortgage
Record Updated	Mar 13, 2017
Title Company	SERVICELINK

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	421 BLACK OAK DR PETALUMA CA 949526129, PETALUMA, CA 94952-6129

Mortgage

Document Number	0000012340
Date	Feb 16, 2017
Instrument	12340

Lender

Name	USAA
Address	SAN ANTONIO, TX 78288-0544

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	180 Months
Due	Feb 15, 2032

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	California
County	Sonoma County
Municipality	Petaluma City
Elementary School District	Petaluma City Elementary School District (KG - 06)
Secondary School District	Petaluma Joint Union High School District (07 - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$1,266,169 (+2%) Land $494,206 Building $771,963
2025	$14,262.00 (+9.39%) Homeowner's exemption	$1,241,343 (+4.04%) Land $484,516 Building $756,827
2023	$13,038.00 (+0.89%) Homeowner's exemption	$1,193,142 Land $465,702 Building $727,440
2022	$12,923.00

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
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	2 in force
Nearby Flood Claims	2 (1983–2010)
Claims Outside the SFHA	2 of 2
Most Recent Claim	Jan 2010 · rainfall accumulation

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	High above 79% of the US · above 57% of California
Wildfire Likelihood	0.6% annual chance
Exposure	Direct burnable vegetation

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 PETALUMA serves 61,427 people · EPA ID CA4910006
Water Source	Groundwater
Last State Inspection	Jun 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	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 59 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	1,200 / 35
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20

Cell Coverage

5G (outdoors only) and 4G LTE

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