321 F St, Martinez, CA 94553 Property Records

Contra Costa County property record for 321 F St, Martinez, CA 94553

Property Summary

Property TypeSingle Family Home
Details3 bd · 1.5 ba · 1,163 sqft · built 1944
Lot Size0.103 acres (4,500 sqft)
OwnerIndividual Name on Record
Last Sale$678,000 (Sep 2025)
Tax Bill$3,788 (2025)
Deeds & MortgagesSep 2025 Mortgage
Sep 2025 Sale
+ 3 more
Flood ZoneZone X (minimal risk)
APN370-201-012-9

Property Details

APN / Parcel Number

Primary APN370-201-012-9
Alternative APN
  • 370-201-012

Interior

Bedrooms3 Beds
Full Baths1.5 Baths
Half Baths1 Half Bath
Total Rooms7 Rooms
Stories1 Story
Building Area1,163 sqft Living Area
Gross Area1,463 sqft
1st Floor Area1,163 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1944
Effective Year BuiltEffective 1949
Architectural StyleBungalow
Exterior MaterialWood Siding
Construction TypeFrame
Roof MaterialComposition Shingle
Lot Area4,500 sqft (0.103 acres)
Garage TypeAttached
Garage Area300 sqft
Parking Spaces1 Parking Space

Utilities, Heating & Cooling

Cooling SystemWindow A/C
Heating SystemFloor/Wall Furnace
SewerMunicipal
Water SourceCommercial

Location & Zoning

Street Address321 F ST
CityMARTINEZ
StateCA
Zip94553-3133
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR1
Legal DescriptionORIGINAL SURVEY POR BLK 113
Legal SubdivisionMARTINEZ
Legal Block113
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group3
Census Block3016
Census Tract318000

Owner

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

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of RecordIndividual Name on Record
Mailing Address321 F ST, MARTINEZ, CA 94553-3133
OccupancyOwner Occupied
Owner TypeIndividual
VestingUnmarried Woman

Deeds, Mortgages & Sale History

DateDocument
Sep 26, 2025Deed of Trust, Mortgage · Conventional Mortgage
BARRETT FINANCIAL GROUP LLC
Sep 26, 2025Grant Deed, Transfer
ATLANTIS TITLE COMPANY, ATLAS TITLE COMPANY
Jan 13, 2022Deed of Trust, Mortgage · Reverse Mortgage
HIGHTECHLENDING INC
Jul 12, 2018Deed of Trust, Mortgage · FHA Mortgage
HUD-HOUSING/URBAN DEV
Jul 12, 2018Deed of Trust, Mortgage · FHA Mortgage
HIGHTECHLENDING

Assessor's Deed Record

Deed NamesName on Deed
Last SaleSep 26, 2025 · Amount on Record
Deed SaleSep 26, 2025 · Amount on Record
Prior SaleApr 29, 2011 · Amount on Record
Deed Document Number2025101109
Prior Transfer DateNov 2, 2005
Prior Transfer Doc0000443555
Record UpdatedOct 29, 2026

September 2025: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address321 F ST, MARTINEZ, CA 94553-3133
Transaction TypeMortgage
Record UpdatedOct 8, 2025
Title CompanyATLANTIS TITLE COMPANY, ATLAS TITLE COMPANY

Transferred To (Grantee/Buyer)

NameVerified Name
Address141 FLORA AVE 14, 14, WALNUT CREEK, CA 94595-1229

Mortgage

Document Number0000101110
DateSep 26, 2025
Instrument2025- 101110
Lender
NameBARRETT FINANCIAL GROUP LLC
TypeMortgage Company
Address2701 E INSIGHT WAY STE 150, CHANDLER, AZ 85286
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueOct 1, 2055

September 2025: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionCONTRA COSTA CA
Recording DateSep 26, 2025
Property Address321 F ST, MARTINEZ, CA 94553-3133
Document Number0000101109
Instrument DateSep 23, 2025
Instrument2025- 101109
Transaction TypeTransfer
Record UpdatedOct 8, 2025
Title CompanyATLANTIS TITLE COMPANY, ATLAS TITLE COMPANY

Transaction

AmountAmount Recorded
Tax$0.00
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address321 F ST, MARTINEZ, CA 94553-3133

January 2022: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address321 F ST, MARTINEZ, CA 94553-3133
Transaction TypeMortgage
Record UpdatedNov 3, 2022
Title CompanyFIDELITY NATL TTL ORANGE CNT

Transferred To (Grantee/Buyer)

NameVerified Name
Address321 F ST, MARTINEZ, CA 94553-3133

Mortgage

Document Number0000008416
DateJan 13, 2022
Instrument2022-008416
Lender
NameHIGHTECHLENDING INC
TypeMortgage Company
AddressIRVINE, CA 92614
Agreement
TypeReverse Mortgage
AmountAmount Recorded
Interest
Rate TypeAdjustable Rate
Rate2.12%
AdjustableAdjustable Rate Rider
Type Change DateMar 1, 2022
Change FrequencyMonthly
Index1-Year CMT
Max Rate7.12%

July 2018: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address321 F ST, MARTINEZ, CA 94553-3133
Document Number0000113400
Instrument DateJul 12, 2018
Transaction TypeMortgage
Record UpdatedJul 23, 2018
Title CompanyFIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

NameVerified Name
Address321 F ST MARTINEZ CA 945533133, MARTINEZ, CA 94553-3133

Mortgage

Document Number0000113400
DateJul 17, 2018
Instrument113400
Lender
NameHUD-HOUSING/URBAN DEV
AddressWASHINGTON, DC 20410
Agreement
TypeFHA Mortgage
AmountAmount Recorded
Interest
Rate TypeAdjustable Rate
Rate4.52%

July 2018: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address321 F ST, MARTINEZ, CA 94553-3133
Document Number0000113399
Instrument DateJul 12, 2018
Transaction TypeMortgage
Record UpdatedJul 23, 2018
Title CompanyFIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

NameVerified Name
Address321 F ST MARTINEZ CA 945533133, MARTINEZ, CA 94553-3133

Mortgage

Document Number0000113399
DateJul 17, 2018
Instrument113399
Lender
NameHIGHTECHLENDING
AddressIRVINE, CA 92614
Agreement
TypeFHA Mortgage
AmountAmount Recorded
Interest
Rate TypeAdjustable Rate
Rate4.52%

Tax Assessment & Valuation

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$678,000 (+181.51%) Land $460,000 Building $218,000
2025$3,788.00 (+6.43%)$240,843 (+4.04%) Land $197,293 Building $43,550
2023$3,559.00 (+1.51%)$231,493 Land $189,633 Building $41,860
2022$3,506.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

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
Nearest Special Flood Hazard AreaZone AO, within 500 ft
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on Record
median of 109 policies
Nearby Flood Policies109 in force
Nearby Flood Claims32 (1980–2019)
Claims Outside the SFHA3 of 32
Most Recent ClaimFeb 2019
Claims by Event
  • 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

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

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

Wildfire RiskModerate
above 59% of the US · lower than 64% of California
Wildfire Likelihood0.2% 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 358 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable
2,000 / 250
Astound Broadband
Fiber · Cable in parts of the area
1,500 / 1,500
Verizon
Fixed Wireless
300 / 20
T-Mobile
Fixed Wireless
100 / 20
AT&T
Fixed Wireless · DSL · Fiber in parts of the area
100 / 20

May also be available: Unwired.

Nearby Properties on F St

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