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324 Potomac Way, Martinez, CA 94553 Property Records

Contra Costa County property record for 324 Potomac Way, Martinez, CA 94553

Property Summary

Property TypeSingle Family Home
Details4 bd · 2 ba · 1,473 sqft · built 1963
Lot Size0.276 acres (12,000 sqft)
Owner2 Company Names on File
Last Sale$395,000 (Dec 2010)
Tax Bill$6,633 (2025)
Deeds & MortgagesMar 2026 Transfer
Jan 2021 Mortgage
+ 1 more
Flood ZoneZone X (minimal risk)
APN164-192-002-8

Property Details

APN / Parcel Number

Primary APN164-192-002-8
Alternative APN
  • 164-192-002

Interior

Bedrooms4 Beds
Full Baths2 Baths
Total Rooms8 Rooms
Stories1 Story
Building Area1,473 sqft Living Area
1st Floor Area1,473 sqft

Exterior

Year BuiltBuilt 1963
Effective Year BuiltEffective 1963
Lot Area12,000 sqft (0.276 acres)
Garage TypeAttached
Garage Area462 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Heating SystemCentral

Location & Zoning

Street Address324 POTOMAC WAY
CityMARTINEZ
StateCA
Zip94553-6223
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR1
Legal DescriptionTRACT 3000 LOT 83 EX POR MR
Legal SubdivisionSUBDIVISION 3000
Legal Tract3000
Legal Lot Number83
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group1
Census Block1003
Census Tract321103

Owner

324 Potomac Way is owned by a company that acquired it in June 2020.

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

Owner of Record2 Company Names on File
Mailing Address324 POTOMAC WAY, MARTINEZ, CA 94553-6223
Owner TypeCompany
VestingLife Tenant

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

DateDocument
Mar 4, 2026Intrafamily Transfer, Transfer
Jan 29, 2021Deed of Trust, Mortgage · Conventional Mortgage
SUMMIT FUNDING INC
Jul 9, 2020Quit Claim Deed, Transfer
NOT AVAILABLE

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleDec 29, 2010 · Amount on File
Deed SaleDec 29, 2010 · Amount on File
Prior SaleJun 7, 2010 · Amount on File
Deed Document Number2010295984
Last Transfer DateJun 6, 2020
Transfer Doc0000135719
Record UpdatedOct 29, 2026

March 2026: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateMar 4, 2026
Property Address324 POTOMAC WAY, MARTINEZ, CA 94553-6223
Document Number0000021658
Map ReferenceMB 87 PG 3
Instrument DateFeb 12, 2026
Instrument2026- 021658
Transaction TypeTransfer
Record UpdatedMar 13, 2026

Transaction

Tax$0.00
Amount AccuracyNo Consideration Stated
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address324 POTOMAC WAY, MARTINEZ, CA 94553-6223

January 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address324 POTOMAC WAY, MARTINEZ, CA 94553-6223
Transaction TypeMortgage
Record UpdatedNov 3, 2022
Title CompanyCHICAGO TITLE

Transferred To (Grantee/Buyer)

NameVerified Name
Address324 POTOMAC WAY, MARTINEZ, CA 94553-6223

Mortgage

Document Number0000028855
DateJan 29, 2021
Instrument2021-028855
Lender
NameSUMMIT FUNDING INC
TypeMortgage Company
AddressSACRAMENTO, CA 95815
Agreement
TypeConventional Mortgage
AmountAmount on Record
Term361 Months
DueFeb 1, 2051

July 2020: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateJul 9, 2020
Property Address324 POTOMAC WAY, MARTINEZ, CA 94553-6223
Document Number0000135719
Instrument DateJun 6, 2020
Instrument135719
Transaction TypeTransfer
Record UpdatedJul 22, 2020
Title CompanyNOT AVAILABLE

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCommunity Property
Address324 POTOMAC WAY MARTINEZ CA 945536223, MARTINEZ, CA 94553-6223

Tax Assessment & Valuation

The 2025 property tax bill for 324 Potomac Way was $6,633.

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

Property Jurisdictions

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

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$516,170 (+2%) Land $431,235 Building $84,935
2025$6,633.00$506,050 Land $422,780 Building $83,270
2023$6,367.00 (+0.82%)$486,402 Land $406,364 Building $80,038
2022$6,315.00

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

Flood

FEMA maps place 324 Potomac Way in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective October 12, 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

Wildfire risk around 324 Potomac Way is low, with a 0.03% annual chance of 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 Likelihood0.03% 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 SystemCITY OF MARTINEZ
serves 31,015 people · EPA ID CA0710006
Water SourcePurchased surface water from CONTRA COSTA WATER DISTRICT
Last State InspectionOct 2025
LeadUnder 1 ppb (2023–2025)
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 548 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
AT&T
DSL		100 / 20

May also be available: T-Mobile.

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