18433 4th Ave, Sonoma, CA 95476 Property Records

Sonoma County property record for 18433 4th Ave, Sonoma, CA 95476

Property Summary

Property TypeSingle Family Home
Details2 bd · 2 ba · 1,153 sqft · built 1955
Lot Size0.08 acres (3,500 sqft)
OwnerIndividual Name on Record
Last Sale$685,000 (May 2025)
Tax Bill$5,048 (2025)
Deeds & MortgagesJun 2021 Mortgage
Oct 2018 Line of Credit
Flood ZoneZone X (minimal risk)
APN056-472-001-000

Property Details

APN / Parcel Number

Primary APN056-472-001-000
Alternative APN
  • 056-472-001

Interior

Bedrooms2 Beds
Full Baths2 Baths
Total Rooms2 Rooms
Stories1 Story
Building Area1,153 sqft Living Area
1st Floor Area1,153 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1955
Effective Year BuiltEffective 1986
Architectural StyleCustom Design
Construction TypeWood
Lot Area3,500 sqft (0.08 acres)
Garage TypeCarport
Garage Area660 sqft
CarportCarport
Carport Area660 sqft
PorchPorch

Utilities, Heating & Cooling

Cooling SystemHVAC
Heating SystemCentral

Location & Zoning

Old Parcel Number056-472-001
Street Address18433 4TH AVE
CitySONOMA
StateCA
Zip95476-3988
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR15UA
Legal DescriptionMAP E6 168
Legal SubdivisionSUBDIVISION B OF BOYES SPRINGS PARK
Legal Block1
Legal Lot Number9
JurisdictionSONOMA CA
Township / Civil DivisionSONOMA
Census Block Group1
Census Block1019
Census Tract150306

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 RecordIndividual Name on Record
Mailing Address18433 4TH AVE, SONOMA, CA 95476-3988
OccupancyOwner Occupied
Owner TypeIndividual
VestingUnmarried Man

Deeds, Mortgages & Sale History

DateDocument
Jun 1, 2021Deed of Trust, Mortgage · VA Mortgage
QUICKEN LOANS LLC
Oct 22, 2018Deed of Trust, Mortgage · Line of Credit
THIRD FSLA OF CLEVELAND

Assessor's Deed Record

Deed NamesName on Deed
Last SaleMay 30, 2025 · Amount on Record
Deed SaleMay 30, 2025 · Amount on Record
Prior SaleJul 7, 1999 · Amount on Record
Deed Document Number202524506
Prior Transfer DateFeb 2, 1999
Prior Transfer Doc0000017490
Record UpdatedOct 29, 2026

June 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSONOMA CA
Property Address18433 4TH AVE, SONOMA, CA 95476-3988
Transaction TypeMortgage
Record UpdatedJun 17, 2021
Title CompanyAMROCK INC

Transferred To (Grantee/Buyer)

NameVerified Name
Address18433 4TH AVE, SONOMA, CA 95476-3988

Mortgage

Document Number0000064852
DateJun 1, 2021
Instrument2021064852
Lender
NameQUICKEN LOANS LLC
TypeMortgage Company
AddressDETROIT, MI 48226
Agreement
TypeVA Mortgage
AmountAmount Recorded
Term354 Months
DueDec 1, 2050

October 2018: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSONOMA CA
Property Address18433 4TH AVE, SONOMA, CA 95476-3988
Transaction TypeMortgage
Record UpdatedFeb 5, 2021
Title CompanyAMERICAN TITLE INC

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000073223
DateOct 22, 2018
Instrument2018073223
Lender
NameTHIRD FSLA OF CLEVELAND
TypeLending Institution
AddressCLEVELAND, OH 44105
Agreement
TypeLine of Credit
AmountAmount Recorded
Term360 Months
DueOct 10, 2048

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountySonoma County
Unified School DistrictSonoma Valley Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$450,170 (+48.68%) Land $175,362 Building $274,808
2025$5,048.00 (+5.76%) Homeowner's exemption$302,768 (+4.04%) Land $99,894 Building $202,874
2023$4,773.00 (+2.67%) Homeowner's exemption$291,014 Land $96,016 Building $194,998
2022$4,649.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

Source: FEMA National Flood Hazard Layer, effective February 15, 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot 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 RiskLow
lower than 80% of the US · lower than 88% of California
Wildfire Likelihood0.02% annual chance
ExposureIndirect
within 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 SystemVALLEY OF THE MOON WATER DISTRICT
serves 23,140 people · EPA ID CA4910013
Water SourceGroundwater
Last State InspectionSep 2022
LeadUnder 1 ppb (2024–2026)
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 718 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable
2,000 / 250
Verizon
Fixed Wireless
300 / 20
Starlink
Satellite
280 / 30
AT&T
DSL · Fiber in parts of the area
100 / 20

May also be available: T-Mobile.

Nearby Properties on 4th Ave

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