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133 Mount Etna Dr, Clayton, CA 94517 Property Records

Contra Costa County property record for 133 Mount Etna Dr, Clayton, CA 94517

Property Summary

Property TypeTownhouse
Details3 bd · 2 ba · 1,310 sqft · built 1974
Lot Size0.048 acres (2,109 sqft)
OwnerIndividual Name on File
Last Sale$403,000 (Sep 2014)
Tax Bill$6,584 (2025)
Deeds & MortgagesAug 2020 Mortgage
Flood ZoneZone X (minimal risk)
APN119-312-010

Property Details

APN / Parcel Number

Primary APN119-312-010
Alternative APN
  • 119-312-010-0

Interior

Bedrooms3 Beds
Full Baths2 Baths
Total Rooms7 Rooms
Stories2 Stories
Building Area1,310 sqft Living Area
1st Floor Area1,030 sqft
2nd Floor Area280 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1974
Effective Year BuiltEffective 1976
Architectural StyleTownhouse
Lot Area2,109 sqft (0.048 acres)
Garage TypeAttached
Garage Area480 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemForced Air with A/C

Location & Zoning

Street Address133 MT ETNA DR
CityCLAYTON
StateCA
Zip94517-1504
Property CategoryResidential
Property TypeResidential > Condominium / Townhouse > Townhouse
Legal DescriptionT04504 L0074 B
Legal SubdivisionSUBDIVISION 4504
Legal Tract04504
Legal Lot Number74
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group3
Census Block3010
Census Tract355306

Owner

133 Mount Etna Dr, a townhouse, is owned and occupied by an individual who bought it in September 2014.

Source: Contra Costa County records, as of July 14, 2026

Owner of RecordIndividual Name on File
Mailing Address133 MT ETNA DR, CLAYTON, CA 94517-1504
OccupancyOwner Occupied
Owner TypeIndividual
VestingSingle Person

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleSep 5, 2014 · Amount on File
Deed SaleSep 5, 2014 · Amount on File
Deed Document Number2014151018
Prior Transfer DateSep 2, 2014
Prior Transfer Doc0000151019
Record UpdatedOct 29, 2026

August 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address133 MT ETNA DR, CLAYTON, CA 94517-1504
Transaction TypeMortgage
Record UpdatedNov 3, 2022
Title CompanyWESTERN RESOURCES TITLE CO

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000178475
DateAug 21, 2020
Instrument2020-178475
Lender
NameTRI EMERALD FINANCIAL GROUP INC
TypeMortgage Company
AddressALISO VIEJO, CA 92656
Agreement
TypeConventional Mortgage
AmountAmount on Record
Term361 Months
DueSep 1, 2050

Tax Assessment & Valuation

The 2025 property tax bill for 133 Mount Etna Dr was $6,584 with a homeowner's exemption.

Source: Contra Costa County assessment roll, as of July 14, 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
MunicipalityClayton City
Unified School DistrictMount Diablo Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$494,021 (+2%) Land $318,726 Building $175,295
2025$6,584.00 Homeowner's exemption$484,335 Land $312,477 Building $171,858
2023$6,280.00 (+1.57%) Homeowner's exemption$465,530 Land $300,344 Building $165,186
2022$6,183.00

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

Flood

FEMA maps place 133 Mount Etna Dr in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective October 12, 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
Nearby Flood Policies4 in force

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

Wildfire risk around 133 Mount Etna Dr is moderate, ranking above 67% of the US, with a 0.2% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskModerate
above 67% of the US · above 42% of California
Wildfire Likelihood0.2% annual chance
ExposureIndirect
within ember reach
Adjoins Burnable LandYes

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 SystemCONTRA COSTA WATER DISTRICT
serves 210,500 people · EPA ID CA0710003
Water SourceSurface water
Last State InspectionJan 2022
LeadUnder 1 ppb (2026–2028)
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 351 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Unwired
Fixed Wireless		300 / 25
Verizon
Fixed Wireless		300 / 20
T-Mobile
Fixed Wireless		100 / 20

May also be available: Astound Broadband, AT&T.

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