312 Mason St, Healdsburg, CA 95448 Property Records

Sonoma County property record for 312 Mason St, Healdsburg, CA 95448 · Last verified April 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms2 Beds
Bathrooms1 Baths
Year BuiltBuilt 1926
Square Footage1,129 sqft Living Area
Lot Size4,200 sqft (0.096 acres)
GarageDetached, 625 sqft
Tax Bill$9,739.00 (2025)

Owner

Source: Sonoma County records · APN 002-291-016-000

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

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

Owner of RecordCompany Name on File
Mailing Address312 MASON ST, HEALDSBURG, CA 95448-4418
Owner TypeOwner is a Company
VestingOwner is a Trust, Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last Transfer DateApr 03, 2012
Transfer Doc0000059376
Record RefreshedJun 08, 2026

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountySonoma County
MunicipalityHealdsburg City
Unified School DistrictHealdsburg 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$9,739.00 (+5.13%)$824,921 (+4.04%) Land $398,238 Building $426,683
2023$9,264.00 (+1.04%)$792,890 Land $382,775 Building $410,115
2022$9,169.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Sonoma County (06097C), updated February 15, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
Flood HazardMinimal
500-Year FloodplainNo
Special Flood Hazard AreaNo

Wildfire

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

Values are read at the parcel center point; lenders make the official flood determination.

Property Details

APN / Parcel Number

Primary APN002-291-016-000
Alternative APN
  • 002-291-016

Interior

Bedrooms2 Beds
Full Baths1 Baths
Total Rooms2 Rooms
Building Area1,129 sqft Living Area
1st Floor1,129 sqft 1st Floor
Stories1 Stories
FireplaceFireplace
Fireplaces1 Fireplaces

Exterior

Year BuiltBuilt 1926
Effective Year BuiltEffective 1926
Construction TypeWood Construction
Lot Area4,200 sqft (0.096 acres)
Parking Spaces2 Parking Spaces
Garage TypeDetached Garage
Garage Area625 sqft Garage
PorchPorch

Utilities and HVAC

Cooling SystemHVAC Cooling

Location & Zoning

Street Address312 MASON ST
CityHEALDSBURG
StateCA
Zip95448-4418
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal Block1
JurisdictionSONOMA CA
Minor Civil DivisionHEALDSBURG
Census Blockgroup1
Census Block1020
Census Tract153902

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