71 William St, Cotati, CA 94931 Property Records

Sonoma County property record for 71 William St, Cotati, CA 94931 · Last verified May 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms2 Beds
Bathrooms1 Baths
Year BuiltBuilt 1953
Square Footage864 sqft Living Area
Lot Size9,600 sqft (0.22 acres)
OccupancyOwner Occupied
Last Sale$150,000 (1994)
Tax Bill$3,261.00 (2025)

Property Details

APN / Parcel Number

Primary APN144-200-009-000
Alternative APN
  • 144-200-009

Interior

Bedrooms2 Beds
Full Baths1 Baths
Total Rooms2 Rooms
Building Area864 sqft Living Area
Gross Area1,098 sqft Gross Area
1st Floor864 sqft 1st Floor
Stories1 Stories

Exterior

Year BuiltBuilt 1949
Effective Year BuiltEffective 1953
Architectural StyleCustom Design Style
Construction TypeWood Construction
Lot Area9,600 sqft (0.22 acres)
Parking Spaces1 Parking Spaces
Garage TypeAttached Garage
Garage Area234 sqft Garage

Utilities and HVAC

Cooling SystemNone Cooling

Location & Zoning

Street Address71 WILLIAM ST
CityCOTATI
StateCA
Zip94931-4235
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionLOT 17
Legal SubdivisionSUBDIVISION #6 COTATI RANCHO
Legal Block3
Legal Lot Number17
JurisdictionSONOMA CA
Minor Civil DivisionPETALUMA
Census Blockgroup3
Census Block3002
Census Tract151204

Owner

Source: Sonoma County records · APN 144-200-009-000

Assessment roll updated April 13, 2026 · Last verified May 2026

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

Owner of RecordIndividual Name on File
Mailing Address71 WILLIAM ST, COTATI, CA 94931-4235
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleDec 30, 1994 · Amount on Record
Deed SaleDec 30, 1994 · Amount on Record
Prior SaleAug 12, 1994 · Amount on Record
Deed Doc Number1994142567
Prior Transfer DateAug 01, 1994
Prior Transfer Doc0000095910
Record RefreshedJun 08, 2026

Tax Assessment & Valuation

Source: Sonoma County records · Assessment roll updated April 13, 2026 · Last verified May 2026

Property Jurisdictions

TypeName
StateCalifornia
CountySonoma County
MunicipalityCotati City
Unified School DistrictCotati-Rohnert Park Unified School District (KG - 12)

Tax Bill & Assessment History

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

YearTax BillAssessed Value
2025$3,261.00 (+3.2%) Homeowner's exemption$252,293 (+4.04%) Land $142,967 Building $109,326
2023$3,160.00 (+1.87%) Homeowner's exemption$242,498 Land $137,416 Building $105,082
2022$3,102.00

Flood & Wildfire

71 William St is in FEMA Zone X (minimal flood hazard (unshaded X)), outside the Special Flood Hazard Area, with no wildfire exposure.

Flood

Source: FEMA National Flood Hazard Layer · Sonoma County (06097C), updated February 15, 2026

FEMA Flood ZoneZone X
minimal flood hazard (unshaded X)
Special Flood Hazard AreaNo

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024)

Wildfire Risk to HomesNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach of burnable land

Lookups use the parcel center point against federal datasets; a lot that straddles a boundary may differ at its edges, and lenders make the official flood determination. Wildfire values come from a national model at roughly 900 ft resolution with fuels as of 2020 and describe conditions, not a forecast.

Nearby Properties on William St

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