508 Williams Dr, Petaluma, CA 94954 Property Records

Sonoma County property record for 508 Williams Dr, Petaluma, CA 94954

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,045 sqft · built 1955
Lot Size	0.13 acres (5,670 sqft)
Owner	Trust Name on File
Last Sale	$248,000 (Aug 2010)
Tax Bill	$3,591 (2025)
Deeds & Mortgages	Mar 2021 Mortgage Aug 2017 Line of Credit + 4 more
Flood Zone	Zone X (minimal risk)
APN	`007-293-006-000`

Property Details

APN / Parcel Number

Primary APN	`007-293-006-000`
Alternative APN	`007-293-006`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	3 Rooms
Stories	1 Story
Building Area	1,045 sqft Living Area
Gross Area	1,465 sqft
1st Floor Area	1,045 sqft

Exterior

Year Built	Built 1955
Effective Year Built	Effective 1955
Architectural Style	Custom Design
Exterior Material	Stucco
Construction Type	Wood
Roof Material	Tar & Gravel
Lot Area	5,670 sqft (0.13 acres)
Garage Type	Attached
Garage Area	420 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	HVAC
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Old Parcel Number	007-293-006
Street Address	508 WILLIAMS DR
City	PETALUMA
State	CA
Zip	94954-3446
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	CITYPE
Legal Description	KENWORTH MANOR SUB LOT 49
Legal Subdivision	KENWORTH MANOR SUB
Legal Block	3
Legal Lot Number	49
Jurisdiction	SONOMA CA
Township / Civil Division	PETALUMA
Census Block Group	3
Census Block	3011
Census Tract	150603

Owner

508 Williams Dr is owner-occupied and held in a trust since August 2010.

Source: Sonoma County records, as of September 1, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	Trust Name on File
Mailing Address	508 WILLIAMS DR, PETALUMA, CA 94954-3446
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Mar 4, 2021	Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LOANS LLC
Aug 16, 2017	Deed of Trust, Mortgage · Line of Credit FREMONT BANK
Mar 2, 2020	Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE AFFINITY LLC
Oct 22, 2020	Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LOANS LLC
Jun 11, 2019	Deed of Trust, Mortgage · Conventional Mortgage REDWOOD CU
Nov 29, 2017	Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LNS

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Aug 20, 2010 · Amount on File
Deed Sale	Aug 20, 2010 · Amount on File
Prior Sale	Jun 7, 2010 · Amount on File
Deed Document Number	201069601
Prior Transfer Date	Jun 3, 2010
Prior Transfer Doc	0000046582
Record Updated	Oct 29, 2026

March 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SONOMA CA
Property Address	508 WILLIAMS DR, PETALUMA, CA 94954-3446
Transaction Type	Mortgage
Record Updated	Mar 24, 2021
Title Company	AMROCK INC

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	508 WILLIAMS DR, PETALUMA, CA 94954-3446

Mortgage

Document Number	0000025736
Date	Mar 4, 2021
Instrument	2021025736

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company
Address	DETROIT, MI 48226

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	359 Months
Due	Feb 1, 2051

August 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SONOMA CA
Property Address	508 WILLIAMS DR, PETALUMA, CA 94954-3446
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	FIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000063459
Date	Aug 16, 2017
Instrument	2017063459

Lender

Name	FREMONT BANK
Type	Bank
Address	LIVERMORE, CA 94551

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	360 Months
Due	Aug 10, 2047

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

March 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SONOMA CA
Property Address	508 WILLIAMS DR, PETALUMA, CA 94954-3446
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	TIMIOS INC

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000015899
Date	Mar 2, 2020
Instrument	2020015899

Lender

Name	GUARANTEED RATE AFFINITY LLC
Type	Mortgage Company
Address	CHICAGO, IL 60613

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Mar 1, 2050

October 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SONOMA CA
Property Address	508 WILLIAMS DR, PETALUMA, CA 94954-3446
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	AMROCK INC

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	508 WILLIAMS DR, PETALUMA, CA 94954-3446

Mortgage

Document Number	0000096647
Date	Oct 22, 2020
Instrument	2020096647

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company
Address	DETROIT, MI 48226

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	359 Months
Due	Sep 1, 2050

June 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SONOMA CA
Property Address	508 WILLIAMS DR, PETALUMA, CA 94954-3446
Document Number	0000040625
Instrument Date	Jun 11, 2019
Transaction Type	Mortgage
Record Updated	Jul 1, 2019
Title Company	FIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	508 WILLIAMS DR PETALUMA CA 949543446, PETALUMA, CA 94954-3446

Mortgage

Document Number	0000040625
Date	Jun 17, 2019
Instrument	40625

Lender

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

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	60 Months
Due	Jun 16, 2024

November 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SONOMA CA
Property Address	508 WILLIAMS DR, PETALUMA, CA 94954-3446
Document Number	0000093849
Instrument Date	Nov 29, 2017
Transaction Type	Mortgage
Record Updated	Jan 3, 2018
Title Company	OTHER

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	508 WILLIAMS DR PETALUMA CA 949543446, PETALUMA, CA 94954-3446

Mortgage

Document Number	0000093849
Date	Dec 7, 2017
Instrument	93849

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Dec 6, 2047

Tax Assessment & Valuation

The 2025 property tax bill for 508 Williams Dr was $3,591 with a homeowner's exemption.

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	Old Adobe Union 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		$324,074 (+2%) Land $189,480 Building $134,594
2025	$3,591.00 Homeowner's exemption	$317,720 Land $185,765 Building $131,955
2023	$3,375.00 (+0.54%) Homeowner's exemption	$305,384 Land $178,552 Building $126,832
2022	$3,357.00

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

Flood

FEMA maps place 508 Williams Dr in Zone X, an area of minimal flood risk.

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

The area around 508 Williams Dr has no burnable land within ember reach, so its wildfire risk is not rated.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Not rated no burnable land 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	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 788 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
AT&T DSL · Fiber in parts of the area	100 / 20

May also be available: Verizon.

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