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414 Main St, Martinez, CA 94553 Property Records

Contra Costa County property record for 414 Main St, Martinez, CA 94553 · Last verified August 2026

Property Summary

Property TypeCare Home (Retirement, Nursing, Convalescent)
Detailsbuilt 1993
Lot Size0.461 acres (20,081 sqft)
OwnerCompany Name on File
Last Sale$16,900,000 (Nov 2025)
Tax Bill$311 (2025)
Deeds & MortgagesNov 2025 Mortgage
Apr 2025 Mortgage
+ 2 more
Flood ZoneZone AO (high risk)
APN373-225-002-6

Property Details

APN / Parcel Number

Primary APN373-225-002-6
Alternative APNs
  • 373-225-006
  • 373-225-002
  • 3732250067

Exterior

Year BuiltBuilt 1993
Effective Year BuiltEffective 1993
Lot Area20,081 sqft (0.461 acres)

Location & Zoning

Street Address414 MAIN ST
CityMARTINEZ
StateCA
Zip94553
Property CategoryCommercial
Property TypeCommercial > Retail > Care Home (Retirement, Nursing, Convalescent)
Legal DescriptionORIG SURV LOTS 1-3 POR 7 & 8 BLK 22
Legal SubdivisionMARTINEZ
Legal Block22
Legal Lot Number1-3
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group1
Census Block1049
Census Tract316000

Owner

Source: Contra Costa County records · APN 373-225-002-6

Assessment roll updated July 14, 2026 · Last verified August 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 Address22645 GRAND ST, HAYWARD, CA 94541-5031
Owner TypeCompany
VestingLimited Partnership

Deeds, Mortgages & Sale History

DateDocument
Nov 19, 2025Deed of Trust, Mortgage · Commercial Mortgage
RIVERHOUSE ASSOCIATES,
Apr 10, 2025Deed of Trust, Mortgage · Commercial Mortgage
COUNTY OF CONTRA COSTA A POLITICAL SUB
Nov 19, 2025Grant Deed, Transfer · Commercial Mortgage
CONTRA COSTA A POLITICAL SUB
Nov 19, 2025Deed, Construction Loan · Construction Mortgage
CN FINANCING INC

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleNov 19, 2025 · Amount on Record
Deed SaleNov 19, 2025 · Amount on Record
Prior SaleNov 19, 2025 · Amount on Record
Deed Document Number2025130009
Prior Transfer DateNov 01, 2025
Prior Transfer Doc0000130009
Record UpdatedSep 20, 2026

November 2025: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address414 MAIN ST, MARTINEZ, CA 94553
Transaction TypeMortgage
Record UpdatedDec 02, 2025
Title CompanyOLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transferred To (Grantee/Buyer)

NameVerified Name
Address22645 GRAND ST, HAYWARD, CA 94541-5031

Mortgage

Document Number0000130018
DateNov 19, 2025
Instrument2025- 130018
Lender
NameRIVERHOUSE ASSOCIATES,
TypePrivate Party
Address22645 GRAND ST, HAYWARD, CA 94541
Agreement
TypeCommercial Mortgage
AmountAmount Recorded

April 2025: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address414 MAIN ST, MARTINEZ, CA 94553
Transaction TypeMortgage
Record UpdatedDec 02, 2025
Title CompanyOLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000034193
DateApr 10, 2025
Instrument2025- 034193
Lender
NameCOUNTY OF CONTRA COSTA A POLITICAL SUB
TypeNon-Lending Institution
Agreement
TypeCommercial Mortgage
AmountAmount Recorded

November 2025: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionCONTRA COSTA CA
Recording DateNov 19, 2025
Property Address414 MAIN ST, MARTINEZ, CA 94553
Document Number0000130008
Instrument DateNov 01, 2025
Instrument2025- 130008
Transaction TypeTransfer
Record UpdatedDec 02, 2025
Title CompanyOLD REPUBLIC TITLE COMPANY

Transaction

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

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address22645 GRAND ST, HAYWARD, CA 94541-5031
Mail Care OfEDEN HOUSING INC

Mortgage

Document Number0000130017
DateNov 19, 2025
Instrument2025- 130017
Lender
NameCONTRA COSTA A POLITICAL SUB
TypeNon-Lending Institution
Address30 MUIR RD, MARTINEZ, CA 94553
Agreement
TypeCommercial Mortgage
AmountAmount Recorded

November 2025: Deed, Construction Loan

Document TypeDeed
JurisdictionCONTRA COSTA CA
Recording DateNov 19, 2025
Property Address414 MAIN ST, MARTINEZ, CA 94553
Document Number0000130009
Instrument DateNov 01, 2025
Instrument2025- 130009
Transaction TypeConstruction Loan
Record UpdatedDec 02, 2025
Title CompanyOLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

AmountAmount Recorded
Tax$0.00
Amount AccuracyRounded by County
Additional
  • Multiple Parcels

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address22645 GRAND ST, HAYWARD, CA 94541-5031
Mail Care OfEDEN HOUSING INC

Mortgage

Document Number0000130012
DateNov 19, 2025
Instrument2025- 130012
Lender
NameCN FINANCING INC
TypeNon-Lending Institution
Agreement
TypeConstruction Mortgage
AmountAmount Recorded

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

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.

YearTax BillAssessed Value
2026$10,725,490 (+4,330.48%) Land $901,838 Building $9,823,652
2025$311.00 Additional exemption filed$242,084 (+4.04%) Land $221,026 Building $21,058
2023$311.00 Additional exemption filed$232,687 Land $212,445 Building $20,242
2022$311.00

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 060133160001, 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 42 individual NFIP policies nearby
Nearby Flood Policies42 in force
Nearby Flood Claims20 (1982–2017)
Claims Outside the SFHA4 of 20
Most Recent ClaimJan 2017, rainfall accumulation, Severe Winter Storms, Flooding, And Mudslides
Claims By Storm
  • Severe Storms, Flooding, Mudslides, And Landslides, Jan 2006 · 3 claims
  • Coastal Storms, Floods, Slides & Tornadoes, Mar 1983 · 5 claims
  • Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 3 claims

Wildfire

Wildfire RiskModerate
above 46% of the US · above 27% of California
Wildfire LikelihoodAbout 1 in 1,282 per year
ExposureIndirect
within ember reach

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 371 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
Radiate HoldingsFiber5,000 / 5,000
XfinityCable2,000 / 2,000
UnwiredFixed Wireless300 / 25
VerizonFixed Wireless300 / 20
AT&TFixed Wireless100 / 20
T-Mobile USAFixed Wireless100 / 20
AT&TDSL100 / 20

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

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