320 Walnut St, Petaluma, CA 94952 Property Records

Sonoma County property record for 320 Walnut St, Petaluma, CA 94952

Property Summary

Property Type	Single Family Home
Details	2 bd · 2 ba · 1,105 sqft · built 1927
Lot Size	0.065 acres (2,808 sqft)
Owner	2 Company Names on File
Last Sale	$178,000 (Sep 1989)
Tax Bill	$4,013 (2025)
Deeds & Mortgages	Aug 2023 Transfer
Flood Zone	Zone X (minimal risk)
APN	`006-211-009-000`

Property Details

APN / Parcel Number

Primary APN	`006-211-009-000`
Alternative APN	`006-211-009`

Interior

Bedrooms	2 Beds
Full Baths	2 Baths
Total Rooms	2 Rooms
Stories	1 Story
Building Area	1,105 sqft Living Area
1st Floor Area	1,105 sqft

Exterior

Year Built	Built 1927
Effective Year Built	Effective 1938
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	2,808 sqft (0.065 acres)
Garage Area	252 sqft

Utilities, Heating & Cooling

Cooling System	HVAC

Location & Zoning

Old Parcel Number	006-211-009
Street Address	320 WALNUT ST
City	PETALUMA
State	CA
Zip	94952-2747
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	CITYPE
Legal Subdivision	CITY PETALUMA
Legal Block	4
Legal Lot Number	461
Jurisdiction	SONOMA CA
Township / Civil Division	PETALUMA
Census Block Group	4
Census Block	4009
Census Tract	150902

Owner

Source: Sonoma County records · APN 006-211-009-000

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

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

Owner of Record	2 Company Names on File
Mailing Address	320 WALNUT ST, PETALUMA, CA 94952-2747
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Sep 08, 1989 · Amount on Record
Deed Sale	Sep 08, 1989 · Amount on Record
Deed Document Number	198985514
Last Transfer Date	Nov 22, 1993
Transfer Doc	0000154475
Record Updated	Jun 08, 2026

August 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SONOMA CA
Recording Date	Aug 11, 2023
Property Address	320 WALNUT ST, PETALUMA, CA 94952-2747
Document Number	0000037585
Instrument Date	Aug 04, 2023
Instrument	2023037585
Transaction Type	Transfer
Record Updated	Aug 28, 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 Revocable Trust
Address	320 WALNUT ST, PETALUMA, CA 94952-2747
Investor	Possibly a Property Investor

Tax Assessment & Valuation

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

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

Year	Tax Bill	Assessed Value
2025	$4,013.00 (+11.01%) Homeowner's exemption	$341,425 (+4.04%) Land $156,381 Building $185,044
2023	$3,615.00 (+0.86%) Homeowner's exemption	$328,168 Land $150,309 Building $177,859
2022	$3,584.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of February 15, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Claims	1 (1982)
Most Recent Claim	Jan 1982 · Severe Storms, Flood, Mudslides & High Tide

Wildfire

Wildfire Risk	Not rated no burnable land within 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 as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Sonic Telecom Fiber	10,000 / 10,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
AT&T DSL · Fiber, Fixed Wireless in parts of the area	100 / 20

May also be available: T-Mobile USA.

Based on FCC filings for 752 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CITY OF PETALUMA serves 61,427 people
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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.