12 Webster St, Petaluma, CA 94952 Property Records

Sonoma County property record for 12 Webster St, Petaluma, CA 94952

Property Summary

Property TypeDuplex
Details2 bd · 1 ba · 657 sqft · built 1939
Lot Size0.172 acres (7,500 sqft)
OwnerIndividual Name on Record
Last Sale$1,095,000 (May 2021)
Tax Bill$13,643 (2025)
Deeds & MortgagesSep 2023 Line of Credit
May 2021 Sale & Mortgage
Flood ZoneZone X (minimal risk)
APN008-344-006-000

Property Details

APN / Parcel Number

Primary APN008-344-006-000
Alternative APN
  • 008-344-006

Interior

Bedrooms2 Beds
Full Baths1 Bath
Total Rooms3 Rooms
Units2 Units
Stories1 Story
Building Area657 sqft Living Area
1st Floor Area657 sqft

Exterior

Year BuiltBuilt 1939
Effective Year BuiltEffective 1939
Architectural StyleL-Shape
Construction TypeWood
Lot Area7,500 sqft (0.172 acres)
Garage TypeAttached
Garage Area810 sqft
Parking Spaces3 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemNone
Heating SystemFloor/Wall Furnace

Location & Zoning

Old Parcel Number008-344-006
Street Address12 WEBSTER ST
CityPETALUMA
StateCA
Zip94952-4021
Property CategoryResidential
Property TypeResidential > Multi-Unit > Duplex
Local Zoning CodeCITYPE
Legal DescriptionLINCOLN MANOR HEIGHTS LOT 12
Legal SubdivisionLINCOLN MANOR HEIGHTS
Legal Block4
Legal Lot Number12
JurisdictionSONOMA CA
Township / Civil DivisionPETALUMA
Census Block Group4
Census Block4021
Census Tract150800

Owner

Source: Sonoma County records, as of October 20, 2026

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

Owner of RecordIndividual Name on Record
Mailing Address12 WEBSTER ST, PETALUMA, CA 94952-4021
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

DateDocument
Sep 1, 2023Deed of Trust, Mortgage · Line of Credit
UNITED WHOLESALE MORTGAGE
May 21, 2021Grant Deed, Transfer · Conventional Mortgage
SIERRA PACIFIC MORTGAGE CO INC

Assessor's Deed Record

Deed NamesName on Deed
Last SaleMay 21, 2021 · Amount on Record
Deed SaleMay 21, 2021 · Amount on Record
Deed Document Number202161495
Prior Transfer DateAug 10, 2013
Prior Transfer Doc0000084350
Record UpdatedOct 29, 2026

September 2023: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSONOMA CA
Property Address12 WEBSTER ST, PETALUMA, CA 94952-4021
Transaction TypeMortgage
Record UpdatedSep 19, 2023

Transferred To (Grantee/Buyer)

NameVerified Name
Address12 WEBSTER ST, PETALUMA, CA 94952-4021

Mortgage

Document Number0000040947
DateSep 1, 2023
Instrument2023040947
Lender
NameUNITED WHOLESALE MORTGAGE
TypeMortgage Company
AddressPONTIAC, MI 48341
Agreement
TypeLine of Credit
AmountAmount Recorded
Term361 Months
DueOct 1, 2053
Interest
Rate TypeAdjustable Rate
Change FrequencyMonthly

May 2021: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionSONOMA CA
Recording DateMay 21, 2021
Property Address12 WEBSTER ST, PETALUMA, CA 94952-4021
Document Number0000061495
Map ReferenceMB 3 PG 37
Instrument DateMay 17, 2021
Instrument2021061495
Transaction TypeTransfer
Record UpdatedJun 9, 2021
Title CompanyOLD REPUBLIC TITLE COMPANY

Transaction

AmountAmount Recorded
DownpaymentDownpayment on Record
Loan-to-Value (LTV)LTV on Record
Tax$3,394.50
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address12 WEBSTER ST, PETALUMA, CA 94952-4021

Mortgage

Document Number0000061496
DateMay 21, 2021
Instrument2021061496
Lender
NameSIERRA PACIFIC MORTGAGE CO INC
TypeMortgage Company
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueJun 1, 2051

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountySonoma County
MunicipalityPetaluma City
Elementary School DistrictPetaluma City Elementary School District (KG - 06)
Secondary School DistrictPetaluma Joint Union High School District (07 - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$1,208,966 (+2%) Land $380,906 Building $828,060
2025$13,643.00 (+9.4%)$1,185,262 (+4.04%) Land $373,438 Building $811,824
2023$12,471.00 (+556.37%)$1,139,238 Land $358,938 Building $780,300
2022$1,900.00

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 ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 10 (0% premium discount)
Nearby Flood Policies2 in force
Nearby Flood Claims3 (1979–2011)
Claims Outside the SFHA1 of 3
Most Recent ClaimMar 2011 · 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 RiskModerate
above 46% of the US · lower than 72% of California
Wildfire Likelihood0.09% annual chance
ExposureIndirect
within ember reach
Adjoins Burnable LandYes

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 SystemCITY OF PETALUMA
serves 61,427 people · EPA ID CA4910006
Water SourceGroundwater
Last State InspectionJun 2024
LeadUnder 1 ppb (2021–2023)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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 628 locations within half a mile, as of December 31, 2025

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

Cell Coverage

5G (outdoors only) and 4G LTE

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