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647 D St, Martinez, CA 94553 Property Records

Contra Costa County property record for 647 D St, Martinez, CA 94553 · Last verified July 2026

Property Summary

Property TypeQuadplex
Details2,280 sqft · built 1952
Lot Size0.48 acres (20,908 sqft)
OwnerCompany Name on File
Last Sale$500,000 (Aug 2007)
Tax Bill$10,219 (2025)
Deeds & MortgagesAug 2018 Transfer
Flood ZoneZone AO (high risk)
APN375-090-009-8

Property Details

APN / Parcel Number

Primary APN375-090-009-8
Alternative APN
  • 375-090-009

Interior

Total Rooms4 Rooms
Stories1 Story
Building Area2,280 sqft Living Area
1st Floor Area2,280 sqft

Exterior

Year BuiltBuilt 1952
Effective Year BuiltEffective 1955
Architectural StyleQuadruplex
Lot Area20,908 sqft (0.48 acres)
Garage TypeCarport
CarportCarport
Parking Spaces3 Parking Spaces

Location & Zoning

Street Address647 D ST
CityMARTINEZ
StateCA
Zip94553-3205
Property CategoryResidential
Property TypeResidential > Multi-Unit > Quadplex
Legal DescriptionPOR RO LAS JUNTAS
Legal SubdivisionLAS JUNTAS RHO
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group3
Census Block3006
Census Tract318000

Owner

Source: Contra Costa County records · APN 375-090-009-8

Assessment roll updated July 14, 2026 · Last verified July 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 Address1252 STONE VALLEY RD, ALAMO, CA 94507-2028
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleAug 15, 2007 · Amount on Record
Deed SaleAug 15, 2007 · Amount on Record
Deed Document Number2007234040
Last Transfer DateAug 10, 2018
Transfer Doc0000129443
Record UpdatedSep 20, 2026

August 2018: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateAug 14, 2018
Property Address647 D ST, MARTINEZ, CA 94553-3205
Document Number0000129443
Instrument DateAug 10, 2018
Instrument129443
Transaction TypeTransfer
Record UpdatedNov 21, 2018

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address1252 STONE VALLEY RD ALAMO CA 945072028, ALAMO, CA 94507-2028

Tax Assessment & Valuation

Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
MunicipalityMartinez City
Unified School DistrictMartinez 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
2026$669,745 (+2%) Land $221,058 Building $448,687
2025$10,219.00 (+3.98%)$656,614 (+4.04%) Land $216,724 Building $439,890
2023$9,828.00 (-0.43%)$631,118 Land $208,309 Building $422,809
2022$9,870.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133180003, 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 AO
sheet flow 1–3 ft
Special Flood Hazard AreaYes
Flood HazardHigh
100-Year FloodplainYes
1% annual chance
FloodwayNo
Base Flood ElevationVaries along the reach; see FIRM
Flood Insurance RequirementRequired (federally backed mortgages)
Flood Insurance CostPremium on Record
median of 109 individual NFIP policies nearby
Nearby Flood Policies109 in force
Nearby Flood Claims32 (1980–2019)
Claims Outside the SFHA3 of 32
Most Recent ClaimFeb 2019
Claims By Storm
  • Severe Storms, Flooding, Mudslides, And Landslides, Jan 2006 · 12 claims
  • Severe Storms, Flooding, Mud And Landslides, Jan 1997 · 5 claims
  • Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 6 claims

Wildfire

Wildfire RiskModerate
above 47% of the US · above 28% of California
Wildfire LikelihoodAbout 1 in 1,299 per year
ExposureDirect
burnable vegetation at the parcel

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 · Published October 2026 · based on 358 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
XfinityCable2,000 / 250
Radiate HoldingsFiber1,500 / 1,500
VerizonFixed Wireless300 / 20
T-Mobile USAFixed Wireless100 / 20
AT&TFixed Wireless100 / 20
AT&TDSL100 / 20

May also be available at this address: AT&T, Unwired, Radiate Holdings. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

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