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817 Marie Ave, Martinez, CA 94553 Property Records

Contra Costa County property record for 817 Marie Ave, Martinez, CA 94553

Property Summary

Property TypeSingle Family Home
Details4 bd · 2 ba · 1,458 sqft · built 1971
Lot Size0.166 acres (7,245 sqft)
Owner2 Individual Names on File
Tax Bill$4,261 (2025)
Deeds & MortgagesJul 2020 Mortgage
Flood ZoneZone X (minimal risk)
APN377-071-025-3

Property Details

APN / Parcel Number

Primary APN377-071-025-3
Alternative APN
  • 377-071-025

Interior

Bedrooms4 Beds
Full Baths2 Baths
Total Rooms8 Rooms
Stories1 Story
Building Area1,458 sqft Living Area
1st Floor Area1,458 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1971
Effective Year BuiltEffective 1972
Architectural StyleRanch
Exterior MaterialWood
Roof MaterialComposition Shingle
Lot Area7,245 sqft (0.166 acres)
Lot Dimensions115 ft deep x 63 ft wide
Garage TypeAttached
Garage Area480 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemWall Unit
Heating SystemForced Air with A/C
Heating FuelGas
SewerMunicipal
Water SourceCommercial

Location & Zoning

Street Address817 MARIE AVE
CityMARTINEZ
StateCA
Zip94553-3516
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR6
Legal DescriptionTRACT 3801 LOT 15 EX 1/2 MR
Legal SubdivisionMADEROS HLNDS SUB 3601
Legal Tract3801
Legal Lot Number15
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group1
Census Block1000
Census Tract320003

Owner

817 Marie Ave is owned and occupied by two individuals who acquired it in June 2020.

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

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

Owner of Record2 Individual Names on File
Mailing Address817 MARIE AVE, MARTINEZ, CA 94553-3516
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last Transfer DateJun 5, 2020
Transfer Doc0000154115
Record UpdatedOct 29, 2026

July 2020: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateJul 27, 2020
Property Address817 MARIE AVE, MARTINEZ, CA 94553-3516
Document Number0000154115
Map ReferenceMB 126 PG 29
Instrument DateJun 5, 2020
Instrument2020-154115
Transaction TypeTransfer
Record UpdatedNov 3, 2022
Title CompanyPLACER TITLE COMPANY

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants
Address817 MARIE AVE, MARTINEZ, CA 94553-3516

Mortgage

Document Number0000154116
DateJul 27, 2020
Instrument2020-154116
Lender
NameSYNERGY ONE LENDING
TypeMortgage Company
Agreement
TypeConventional Mortgage
AmountAmount on Record
Term360 Months
DueJul 1, 2050

Tax Assessment & Valuation

The 2025 property tax bill for 817 Marie Ave was $4,261.

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

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
MunicipalityMartinez City
Unified School DistrictMartinez Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$264,819 (+2%) Land $99,554 Building $165,265
2025$4,261.00$259,627 Land $97,602 Building $162,025
2023$3,964.00 (+3.23%)$249,548 Land $93,813 Building $155,735
2022$3,840.00

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

Flood

FEMA maps place 817 Marie Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1986.

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 Policies2 in force
Nearby Flood Claims1 (1986)
Claims Outside the SFHA1 of 1
Most Recent ClaimFeb 1986 · Severe Storms & Flooding

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

The area around 817 Marie Ave has no burnable land within ember reach, so its wildfire risk is not rated.

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

Wildfire RiskNot rated
no burnable land 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 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 596 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
AT&T
DSL · Fiber in parts of the area		100 / 20

May also be available: Astound Broadband.

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