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2104 Castro St, Martinez, CA 94553 Property Records

Contra Costa County property record for 2104 Castro St, Martinez, CA 94553

Property Summary

Property TypeTriplex
Details3,431 sqft · built 1912
Lot Size0.138 acres (6,000 sqft)
Owner2 Company Names on Record
Last Sale$633,000 (May 2015)
Tax Bill$11,218 (2025)
Deeds & MortgagesJun 2021 Mortgage
Mar 2018 Transfer
Flood ZoneZone AO (high risk)
APN372-243-003-4

Property Details

APN / Parcel Number

Primary APN372-243-003-4
Alternative APN
  • 372-243-003

Interior

Total Rooms3 Rooms
Stories1 Story
Building Area3,431 sqft Living Area
1st Floor Area3,431 sqft

Exterior

Year BuiltBuilt 1912
Effective Year BuiltEffective 1950
Architectural StyleTriplex
Lot Area6,000 sqft (0.138 acres)
Parking Spaces2 Parking Spaces

Location & Zoning

Street Address2100 CASTRO ST, 2104
CityMARTINEZ
StateCA
Zip94553-3245
Property CategoryResidential
Property TypeResidential > Multi-Unit > Triplex
Legal DescriptionORIGINAL SURVEY LOT 1 POR 2 BLK 145
Legal SubdivisionMARTINEZ
Legal Block145
Legal Lot Number1
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group3
Census Block3001
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 Record2 Company Names on Record
Mailing Address599 EL CAPITAN DR, DANVILLE, CA 94526-4944
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

DateDocument
Jun 15, 2021Deed of Trust, Mortgage · Conventional Mortgage
PENNYMAC LOAN SERVICES LLC
Mar 16, 2018Quit Claim Deed, Transfer
ATTORNEY ONLY

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleMay 15, 2015 · Amount on Record
Deed SaleMay 15, 2015 · Amount on Record
Deed Document Number201598356
Last Transfer DateMar 9, 2018
Transfer Doc0000040642
Record UpdatedOct 29, 2026

June 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address2104 CASTRO ST, MARTINEZ, CA 94553-3245
Transaction TypeMortgage
Record UpdatedNov 3, 2022
Title CompanySERVICELINK

Transferred To (Grantee/Buyer)

NameVerified Name
Address599 EL CAPITAN DR, DANVILLE, CA 94526-4944

Mortgage

Document Number0000172911
DateJun 15, 2021
Instrument2021-172911
Lender
NamePENNYMAC LOAN SERVICES LLC
TypeMortgage Company
AddressWESTLAKE VILLAGE, CA 91361
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term180 Months
DueJun 1, 2036

March 2018: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateMar 16, 2018
Property Address2104 CASTRO ST, MARTINEZ, CA 94553-3245
Document Number0000040642
Instrument DateMar 9, 2018
Instrument40642
Transaction TypeTransfer
Record UpdatedMar 23, 2018
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address599 EL CAPITAN DR DANVILLE CA 945264944, DANVILLE, CA 94526-4944

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$775,732 (+2%) Land $416,797 Building $358,935
2025$11,218.00 (+5.2%)$760,523 (+4.04%) Land $408,625 Building $351,898
2023$10,664.00 (+0.47%)$730,993 Land $392,758 Building $338,235
2022$10,614.00

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

Flood

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 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 RiskLow
lower than 64% of the US · lower than 78% of California
Wildfire Likelihood0.04% annual chance
ExposureIndirect
within ember reach
Adjoins Burnable LandYes

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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