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18400 Comstock Ave, Sonoma, CA 95476 Property Records

Sonoma County property record for 18400 Comstock Ave, Sonoma, CA 95476

Property Summary

Property TypeSingle Family Home
Details2 bd · 2 ba · 1,462 sqft · built 1976
Lot Size0.115 acres (5,000 sqft)
OwnerIndividual Name on File
Last Sale$685,000 (Jul 2020)
Tax Bill$10,217 (2025)
Deeds & MortgagesJul 2020 Sale & Mortgage
Sep 2018 Mortgage
Flood ZoneZone X (minimal risk)
APN052-233-034-000

Property Details

APN / Parcel Number

Primary APN052-233-034-000
Alternative APN
  • 052-233-034

Interior

Bedrooms2 Beds
Full Baths2 Baths
Total Rooms4 Rooms
Stories1 Story
Building Area1,462 sqft Living Area
Gross Area2,012 sqft
1st Floor Area1,462 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1976
Effective Year BuiltEffective 1988
Architectural StyleL-Shape
Construction TypeWood
Lot Area5,000 sqft (0.115 acres)
Garage TypeAttached
Garage Area550 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemHVAC

Location & Zoning

Old Parcel Number052-233-034
Street Address18400 COMSTOCK AVE
CitySONOMA
StateCA
Zip95476-4240
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR15UA
Legal Description77 FORM PT OF 52-233-30 OR 3025-587
Legal SubdivisionMAP EATON PARK SUB SONOMA VISTA TRACT
Legal Block2
Legal Lot Number7
JurisdictionSONOMA CA
Township / Civil DivisionSONOMA
Census Block Group2
Census Block2015
Census Tract150304

Owner

Source: Sonoma County records · APN 052-233-034-000

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 RecordIndividual Name on File
Mailing AddressPO BOX 1521, SONOMA, CA 95476-1521
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

DateDocument
Jul 17, 2020Grant Deed, Transfer · Conventional with PMI
QUICKEN LNS
Sep 11, 2018Deed of Trust, Mortgage · Conventional Mortgage
REDWOOD CU

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleJul 17, 2020 · Amount on Record
Deed SaleJul 17, 2020 · Amount on Record
Deed Document Number202058819
Prior Transfer DateNov 09, 2016
Prior Transfer Doc0000106257
Record UpdatedJun 08, 2026

July 2020: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionSONOMA CA
Recording DateJul 17, 2020
Property Address18400 COMSTOCK AVE, SONOMA, CA 95476-4240
Document Number0000058819
Instrument DateJul 13, 2020
Instrument58819
Transaction TypeTransfer
Record UpdatedAug 10, 2020
Title CompanyFIRST AMERICAN TITLE

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$754.00
Amount AccuracyFull Value
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
AddressPO BOX 1521 SONOMA CA 954761521, SONOMA, CA 95476-1521

Mortgage

Document Number58820
DateJul 17, 2020
Instrument58820
Lender
NameQUICKEN LNS
TypeFunding / Finance Company
AddressDETROIT, MI 48226-1906
Agreement
TypeConventional with PMI
AmountAmount Recorded
Term360 Months
DueJul 16, 2050

September 2018: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSONOMA CA
Property Address18400 COMSTOCK AVE, SONOMA, CA 95476-4240
Document Number0000068350
Instrument DateSep 11, 2018
Transaction TypeMortgage
Record UpdatedNov 22, 2018
Title CompanyFIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants with Right of Survivorship
Address18400 GOMSTOCK AVE SONOMA CA 95476, SONOMA, CA 95476

Mortgage

Document Number0000068350
DateSep 28, 2018
Instrument68350
Lender
NameREDWOOD CU
TypeCredit Union
AddressSANTA ROSA, CA 95403
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueSep 27, 2048

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountySonoma County
Unified School DistrictSonoma Valley 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$10,217.00 (+4.48%) Homeowner's exemption$741,464 (+4.04%) Land $296,585 Building $444,879
2023$9,779.00 (+2%) Homeowner's exemption$712,673 Land $285,069 Building $427,604
2022$9,587.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Sonoma County (06097C), updated February 15, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060971503042, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
minimal risk
Nearest Special Flood Hazard AreaZone AE, within 500 ft
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 10 (0% premium discount)
Nearby Flood Policies8 in force
Nearby Flood Claims2 (2005–2017)
Most Recent ClaimFeb 2017 · Severe Winter Storms, Flooding, And Mudslides

Wildfire

Wildfire RiskLow
lower than 80% of the US · lower than 88% of California
Wildfire Likelihood0.01% annual chance
ExposureNone
beyond ember reach

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.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · sampled at 625 locations within half a mile · Last verified October 2026

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

Drinking Water

Source: EPA Safe Drinking Water Information System via ECHO, 2026 Q3 · EPA community water system boundaries v3.0, March 2026 · Last verified October 2026

Water SystemVALLEY OF THE MOON WATER DISTRICT
serves 23,140 people
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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.

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