509 Walnut St, Petaluma, CA 94952 Property Records

Sonoma County property record for 509 Walnut St, Petaluma, CA 94952

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 3,146 sqft · built 1930
Lot Size	0.356 acres (15,500 sqft)
Owner	2 Company Names on Record
Last Sale	$1,680,000 (Sep 2020)
Tax Bill	$21,311 (2025)
Deeds & Mortgages	Mar 2022 Transfer Sep 2020 Sale + 1 more
Flood Zone	Zone X (minimal risk)
APN	`006-144-007-000`

Property Details

APN / Parcel Number

Primary APN	`006-144-007-000`
Alternative APN	`006-144-007`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	4 Rooms
Stories	2 Stories
Building Area	3,146 sqft Living Area
Gross Area	3,434 sqft
1st Floor Area	2,012 sqft
Basement Area	224 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1930
Effective Year Built	Effective 1980
Architectural Style	Custom Design
Construction Type	Wood
Lot Area	15,500 sqft (0.356 acres)
Garage Type	Attached
Garage Area	288 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Central

Location & Zoning

Old Parcel Number	006-144-007
Street Address	509 WALNUT ST
City	PETALUMA
State	CA
Zip	94952-2750
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	CITYPE
Legal Description	LOTS 10 & 11 CHERRY HILL ADDTN
Legal Subdivision	CHERRY HILL ADDTN
Legal Block	4
Legal Lot Number	10,11
Jurisdiction	SONOMA CA
Township / Civil Division	PETALUMA
Census Block Group	4
Census Block	4004
Census Tract	150902

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	2 Company Names on Record
Mailing Address	120 8TH ST, PETALUMA, CA 94952-4042
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Date	Document
Mar 23, 2022	Intrafamily Transfer, Transfer
Sep 4, 2020	Grant Deed, Transfer FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO
Jul 3, 2017	Deed of Trust, Mortgage · Conventional Mortgage REDWOOD CU

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 4, 2020 · Amount on Record
Deed Sale	Sep 4, 2020 · Amount on Record
Prior Sale	Mar 11, 2011 · Amount on Record
Deed Document Number	202078347
Last Transfer Date	Jul 17, 2024
Transfer Doc	0000032743
Record Updated	Oct 29, 2026

March 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SONOMA CA
Recording Date	Mar 23, 2022
Property Address	509 WALNUT ST, PETALUMA, CA 94952-2750
Document Number	0000021032
Instrument Date	Mar 9, 2022
Instrument	2022021032
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	509 WALNUT ST, PETALUMA, CA 94952-2750

September 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SONOMA CA
Recording Date	Sep 4, 2020
Property Address	509 WALNUT ST, PETALUMA, CA 94952-2750
Document Number	0000078347
Instrument Date	Sep 2, 2020
Instrument	78347
Transaction Type	Transfer
Record Updated	Sep 28, 2020
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount Recorded
Tax	$1,848.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	509 WALNUT ST PETALUMA CA 949522750, PETALUMA, CA 94952-2750

July 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SONOMA CA
Property Address	509 WALNUT ST, PETALUMA, CA 94952-2750
Document Number	0000054019
Instrument Date	Jul 3, 2017
Transaction Type	Mortgage
Record Updated	Aug 14, 2017
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	908 SAINT FRANCIS DR PETALUMA CA 949544457, PETALUMA, CA 94954-4457

Mortgage

Document Number	0000054019
Date	Jul 13, 2017
Instrument	54019

Lender

Name	REDWOOD CU
Type	Credit Union
Address	SANTA ROSA, CA 95403

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Jul 12, 2047

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		$1,903,932 (+2%) Land $567,018 Building $1,336,914
2025	$21,311.00 (+12.51%)	$1,866,600 (+6.79%) Land $555,900 Building $1,310,700
2023	$18,941.00 (+0.88%) Homeowner's exemption	$1,747,871 Land $699,148 Building $1,048,723
2022	$18,776.00

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
Nearby Flood Claims	1 (1982)
Most Recent Claim	Jan 1982 · Severe Storms, Flood, Mudslides & High Tide

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	Low lower than 99.1% of the US · lower than 99.2% of California
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond 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	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 752 locations within half a mile, as of December 31, 2025

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.

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