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1715 Castro St, Martinez, CA 94553 Property Records

Contra Costa County property record for 1715 Castro St, Martinez, CA 94553

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 1,297 sqft · built 1904
Lot Size0.115 acres (5,000 sqft)
Owner2 Company Names on File
Last Sale$730,000 (Apr 2025)
Tax Bill$10,041 (2025)
Deeds & MortgagesSep 2021 Transfer
Sep 2021 Mortgage
Flood ZoneZone AO (high risk)
APN372-276-007-5

Property Details

APN / Parcel Number

Primary APN372-276-007-5
Alternative APN
  • 372-276-007

Interior

Bedrooms3 Beds
Full Baths2 Baths
Total Rooms6 Rooms
Stories1 Story
Building Area1,297 sqft Living Area
1st Floor Area1,297 sqft

Exterior

Year BuiltBuilt 1904
Effective Year BuiltEffective 1960
Lot Area5,000 sqft (0.115 acres)
Garage TypeAttached
Garage Area222 sqft
Parking Spaces1 Parking Space

Location & Zoning

Street Address1715 CASTRO ST
CityMARTINEZ
StateCA
Zip94553-2528
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR1
Legal DescriptionORIGINAL SURVEY POR LOTS 3 & 4 BLK 64
Legal SubdivisionMARTINEZ
Legal Block64
Legal Lot Number3,4
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group2
Census Block2027
Census Tract317000

Owner

1715 Castro St is owned by a company that bought it in April 2025.

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

Owner of Record2 Company Names on File
Mailing Address1715 CASTRO ST, MARTINEZ, CA 94553-2528
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
Sep 28, 2021Intrafamily Transfer, Transfer
AMROCK LLC
Sep 28, 2021Intrafamily Transfer, Transfer · Conventional Mortgage
ROCKET MORTGAGE LLC

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleApr 25, 2025 · Amount on File
Deed SaleApr 25, 2025 · Amount on File
Prior SaleSep 3, 2004 · Amount on File
Deed Document Number202540128
Prior Transfer DateOct 24, 2020
Prior Transfer Doc0000269002
Record UpdatedOct 29, 2026

September 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateSep 28, 2021
Property Address1715 CASTRO ST, MARTINEZ, CA 94553-2528
Document Number0000269004
Instrument DateSep 15, 2021
Instrument2021-269004
Transaction TypeTransfer
Record UpdatedJun 7, 2023
Title CompanyAMROCK LLC

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipLiving Trust
Address1715 CASTRO ST, MARTINEZ, CA 94553-2528

September 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateSep 28, 2021
Property Address1715 CASTRO ST, MARTINEZ, CA 94553-2528
Document Number0000269002
Instrument DateOct 24, 2020
Instrument2021-269002
Transaction TypeTransfer
Record UpdatedNov 3, 2022
Title CompanyAMROCK INC, AMROCK LLC

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address1715 CASTRO ST, MARTINEZ, CA 94553-2528

Mortgage

Document Number0000269003
DateSep 28, 2021
Instrument2021-269003
Lender
NameROCKET MORTGAGE LLC
TypeMortgage Company
Agreement
TypeConventional Mortgage
AmountAmount on Record
Term360 Months
DueSep 1, 2051

Tax Assessment & Valuation

The 2025 property tax bill for 1715 Castro St was $10,041.

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$744,600 (+27.8%) Land $459,000 Building $285,600
2025$10,041.00 Homeowner's exemption$582,616 Land $376,349 Building $206,267
2023$7,244.00 (+1.67%) Homeowner's exemption$559,994 Land $361,736 Building $198,258
2022$7,125.00

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

Flood

FEMA maps place 1715 Castro St in Zone AO, a high-risk flood area; flood insurance is required for federally backed loans.

Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone AO
high risk · sheet flow 1–3 ft
100-Year FloodplainYes
1% annual chance
FloodwayNo
Base Flood ElevationVaries along the reach; see FIRM
Flood Insurance RequirementRequired
federally backed loans
Flood Insurance CostPremium on File
median of 70 policies
Nearby Flood Policies70 in force
Nearby Flood Claims51 (1980–2018)
Claims Outside the SFHA1 of 51
Most Recent ClaimSep 2018
Claims by Event
  • Severe Winter Storms, Flooding, And Mudslides, Feb 2017 · 6 claims
  • Severe Storms, Flooding, Mudslides, And Landslides, Dec 2005 · 12 claims
  • Severe Storms, Flooding, Mud And Landslides, Jan 1997 · 9 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

Wildfire risk around 1715 Castro St is moderate, ranking above 48% of the US, with a 0.1% annual chance of wildfire.

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

Wildfire RiskModerate
above 48% of the US · lower than 71% of California
Wildfire Likelihood0.1% 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 853 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
AT&T
Fiber · DSL		5,000 / 5,000
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

May also be available: Unwired.

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