1. Home
  2. California
  3. Sonoma County
  4. Petaluma
  5. B St

523 B St, Petaluma, CA 94952 Property Records

Sonoma County property record for 523 B St, Petaluma, CA 94952

Property Summary

Property TypeSingle Family Home
Details3 bd · 2.5 ba · 2,265 sqft · built 1939
Lot Size0.127 acres (5,544 sqft)
Owner2 Company Names on Record
Last Sale$1,639,000 (Nov 2023)
Tax Bill$19,033 (2025)
Deeds & MortgagesNov 2023 Sale
Jun 2021 Sale
Flood ZoneZone X (minimal risk)
APN008-103-001-000

Property Details

APN / Parcel Number

Primary APN008-103-001-000
Alternative APN
  • 008-103-001

Interior

Bedrooms3 Beds
Full Baths2.5 Baths
Half Baths1 Half Bath
Total Rooms7 Rooms
Stories2 Stories
Building Area2,265 sqft Living Area
1st Floor Area926 sqft

Exterior

Year BuiltBuilt 1939
Effective Year BuiltEffective 2000
Architectural StyleCustom Design
Construction TypeWood
Lot Area5,544 sqft (0.127 acres)
Garage TypeDetached
Garage Area240 sqft
Parking Spaces1 Parking Space

Utilities, Heating & Cooling

Cooling SystemHVAC

Location & Zoning

Street Address523 B ST
CityPETALUMA
StateCA
Zip94952-3047
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeCITYPE
Legal DescriptionMAP D7 465
Legal SubdivisionPETALUMA
Legal Block2
Legal Lot Number134
JurisdictionSONOMA CA
Township / Civil DivisionPETALUMA
Census Block Group3
Census Block3037
Census Tract150701

Owner

Source: Sonoma County records, as of April 13, 2026

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

Owner of Record2 Company Names on Record
Mailing Address523 B ST, PETALUMA, CA 94952-3047
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

DateDocument
Nov 29, 2023Grant Deed, Transfer
OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY
Jun 2, 2021Grant Deed, Transfer
FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleNov 29, 2023 · Amount on Record
Deed SaleNov 29, 2023 · Amount on Record
Prior SaleJun 2, 2021 · Amount on Record
Deed Document Number202358204
Prior Transfer DateMar 16, 2006
Prior Transfer Doc0000034080
Record UpdatedJun 8, 2026

November 2023: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionSONOMA CA
Recording DateNov 29, 2023
Property Address523 B ST, PETALUMA, CA 94952-3047
Document Number0000058204
Instrument DateNov 16, 2023
Instrument2023058204
Transaction TypeTransfer
Record UpdatedDec 21, 2023
Title CompanyOLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

AmountAmount Recorded
Tax$5,080.90
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address523 B ST, PETALUMA, CA 94952-3047

June 2021: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionSONOMA CA
Recording DateJun 2, 2021
Property Address523 B ST, PETALUMA, CA 94952-3047
Document Number0000065497
Instrument DateMay 24, 2021
Instrument2021065497
Transaction TypeTransfer
Record UpdatedJun 18, 2021
Title CompanyFIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transaction

AmountAmount Recorded
Tax$4,495.00
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address202 HIGH MEADOW ST, SIMI VALLEY, CA 93065-7351

Tax Assessment & Valuation

Source: Sonoma County assessment roll, as of April 13, 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
2025$19,033.00 (+15.81%) Homeowner's exemption$1,569,525 (+4.04%) Land $627,810 Building $941,715
2023$16,434.00 (+0.41%)$1,508,580 Land $603,432 Building $905,148
2022$16,367.00

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 6 (20% premium discount)
Nearby Flood Policies43 units insured
incl. 37 condo units

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 RiskLow
lower than 80% of the US · lower than 88% of California
Wildfire Likelihood0.01% annual chance
ExposureNone
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 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 432 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, Fixed Wireless in parts of the area		100 / 20

Nearby Properties on B St

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures