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3890 Serrano St, Martinez, CA 94553 Property Records

Contra Costa County property record for 3890 Serrano St, Martinez, CA 94553 · Last verified July 2026

Property Summary

Property TypeSingle Family Home
Details3 bd · 2.5 ba · 3,198 sqft · built 1939
Lot Size0.207 acres (9,000 sqft)
OwnerCompany Name on File
Last Sale$570,000 (May 2026)
Tax Bill$2,431 (2025)
Deeds & MortgagesJul 2021 Mortgage
May 2026 Sale
+ 3 more
Flood ZoneZone X (minimal risk)
APN370-095-010-2

Property Details

APN / Parcel Number

Primary APN370-095-010-2
Alternative APN
  • 370-095-010

Interior

Bedrooms3 Beds
Full Baths2.5 Baths
Half Baths1 Half Bath
Total Rooms10 Rooms
Stories1 Story
Building Area3,198 sqft Living Area
Gross Area3,618 sqft
1st Floor Area1,832 sqft
Basement Area1,366 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1939
Effective Year BuiltEffective 1942
Exterior MaterialStucco
Roof MaterialWood Shingle
Lot Area9,000 sqft (0.207 acres)
Garage TypeAttached
Garage Area420 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemWall Unit
Heating SystemForced Air with A/C
Heating FuelGas
SewerMunicipal
Water SourceCommercial

Location & Zoning

Street Address3890 SERRANO ST
CityMARTINEZ
StateCA
Zip94553-3753
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionMONTICITO PARK POR 22
Legal SubdivisionMONTECITO PARK
Legal Lot Number22
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group2
Census Block2016
Census Tract318000

Owner

Source: Contra Costa County records · APN 370-095-010-2

Assessment roll updated July 14, 2026 · Last verified July 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 Address8383 WILSHIRE BLVD, 260, BEVERLY HILLS, CA 90211-2433
Owner TypeCompany
VestingLimited Liability Partnership

Deeds, Mortgages & Sale History

DateDocument
Jul 28, 2021Deed of Trust, Mortgage · Conventional Mortgage
CALIBER HOME LOANS INC
May 20, 2026Grant Deed, Transfer
STEWART TITLE, STEWART TITLE GUARANTY COMPANY
May 20, 2026Affidavit of Death of Trustee, Transfer
May 21, 2026Grant Deed, Transfer · Construction Mortgage
RFLF 5 LLC
Mar 20, 2018Quit Claim Deed, Transfer
Quitclaim

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleMay 21, 2026 · Amount on Record
Deed SaleMay 21, 2026 · Amount on Record
Prior SaleMay 20, 2026 · Amount on Record
Deed Document Number202653434
Prior Transfer DateJan 05, 2007
Prior Transfer Doc0000021567
Record UpdatedSep 20, 2026

July 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address3890 SERRANO ST, MARTINEZ, CA 94553-3753
Transaction TypeMortgage
Record UpdatedJun 03, 2026
Title CompanyOLD REPUBLIC TITLE

Transferred To (Grantee/Buyer)

NameVerified Name
Address3890 SERRANO ST, BRIONES, CA 94553-3753

Mortgage

Document Number0000211594
DateJul 28, 2021
Instrument2021-211594
Lender
NameCALIBER HOME LOANS INC
TypeMortgage Company
AddressCOPPELL, TX 75019
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueAug 01, 2051

May 2026: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionCONTRA COSTA CA
Recording DateMay 20, 2026
Property Address3890 SERRANO ST, MARTINEZ, CA 94553-3753
Document Number0000053004
Instrument DateMay 18, 2026
Instrument2026.53004
Transaction TypeTransfer
Record UpdatedMay 28, 2026
Title CompanySTEWART TITLE, STEWART TITLE GUARANTY COMPANY

Transaction

AmountAmount Recorded
Tax$62,216.00
Amount AccuracyFull Amount Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipLimited Liability Partnership
InvestorPossibly a Property Investor

May 2026: Affidavit of Death of Trustee, Transfer

Document TypeAffidavit of Death of Trustee
JurisdictionCONTRA COSTA CA
Recording DateMay 20, 2026
Property Address3890 SERRANO ST, MARTINEZ, CA 94553-3753
Document Number0000053003
Instrument DateMay 14, 2026
Instrument202653003
Transaction TypeTransfer
Record UpdatedJul 12, 2026

Transaction

Tax$0.00
Amount AccuracyFull Amount Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipTrust

May 2026: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionCONTRA COSTA CA
Recording DateMay 21, 2026
Property Address3890 SERRANO ST, MARTINEZ, CA 94553-3753
Document Number0000053434
Instrument DateMay 01, 2026
Instrument2026.53434
Transaction TypeTransfer
Record UpdatedMay 28, 2026
Title CompanyFIRST PRIORITY TITLE COMPANY, FIRST INTEGRITY TITLE COMPANY

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$63,327.00
Amount AccuracyFull Amount Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipLimited Liability Partnership

Mortgage

Document Number0000053435,
DateMay 21, 2026
Instrument2026..53435
Lender
NameRFLF 5 LLC
Agreement
TypeConstruction Mortgage
AmountAmount Recorded
Term12 Months
DueJun 01, 2027
Interest
Rate6.37%
Max Rate-1%

March 2018: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateMar 20, 2018
Property Address3890 SERRANO ST, MARTINEZ, CA 94553-3753
Document Number0000042403
Instrument DateMar 19, 2018
Instrument42403
Transaction TypeTransfer
Record UpdatedMar 27, 2018

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address3890 SERRANO ST MARTINEZ CA 945533753, MARTINEZ, CA 94553-3753

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

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

YearTax BillAssessed Value
2026$305,648 (+2%) Land $156,643 Building $149,005
2025$2,431.00 (-41.19%) Veteran's exemption$299,656 (+4.04%) Land $153,572 Building $146,084
2023$4,134.00 (+1.57%) Homeowner's exemption$288,021 Land $147,609 Building $140,412
2022$4,070.00

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 060133180002, 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 X
Special Flood Hazard AreaNo
Flood HazardMinimal
500-Year FloodplainNo
Nearby Flood Policies3 in force
Nearby Flood Claims5 (1982–2017)
Claims Outside the SFHA4 of 5
Most Recent ClaimJan 2017, rainfall accumulation, Severe Winter Storms, Flooding, And Mudslides

Wildfire

Wildfire RiskHigh
above 73% of the US · above 48% of California
Wildfire LikelihoodAbout 1 in 260 per year
ExposureIndirect
within ember reach
Adjoins Burnable LandYes

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 335 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
XfinityCable2,000 / 250
Radiate HoldingsFiber1,500 / 1,500
UnwiredFixed Wireless300 / 25
VerizonFixed Wireless300 / 20
T-Mobile USAFixed Wireless100 / 20
AT&TDSL100 / 20
StarlinkSatellite (low-earth orbit)280 / 30

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

Mobile Coverage

5G and 4G LTE

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