503 Webster St, Petaluma, CA 94952 Property Records

Sonoma County property record for 503 Webster St, Petaluma, CA 94952

Property Summary

Property Type	Single Family Home
Details	3 bd · 1 ba · 978 sqft · built 1947
Lot Size	0.115 acres (5,000 sqft)
Owner	Company Name on Record
Tax Bill	$426 (2025)
Flood Zone	Zone X (minimal risk)
APN	`008-011-036-000`

Property Details

APN / Parcel Number

Primary APN	`008-011-036-000`
Alternative APN	`008-011-036`

Interior

Bedrooms	3 Beds
Full Baths	1 Bath
Total Rooms	3 Rooms
Stories	1 Story
Building Area	978 sqft Living Area
1st Floor Area	978 sqft

Exterior

Year Built	Built 1947
Effective Year Built	Effective 1948
Architectural Style	Custom Design
Construction Type	Wood
Lot Area	5,000 sqft (0.115 acres)
Garage Area	200 sqft

Utilities, Heating & Cooling

Cooling System	HVAC

Location & Zoning

Old Parcel Number	008-011-036
Street Address	503 WEBSTER ST
City	PETALUMA
State	CA
Zip	94952-2455
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	CITYPE
Legal Subdivision	MAP OF HILLSIDE TRACT
Legal Block	3
Legal Lot Number	2
Jurisdiction	SONOMA CA
Township / Civil Division	PETALUMA
Census Block Group	3
Census Block	3008
Census Tract	150800

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	503 WEBSTER ST, PETALUMA, CA 94952-2455
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Sep 17, 2004
Transfer Doc	0000145874
Record Updated	Oct 29, 2026

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		$43,473 (+2%) Land $16,988 Building $26,485
2025	$426.00 (-17.28%) Homeowner's exemption	$42,621 (+4.04%) Land $16,655 Building $25,966
2023	$515.00 (+0.98%) Homeowner's exemption	$40,967 Land $16,009 Building $24,958
2022	$510.00

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

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

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

Wildfire Risk	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	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 714 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Sonic Telecom Fiber	10,000 / 10,000
AT&T Fiber · DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20