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3700 Serrano St, Martinez, CA 94553 Property Records

Contra Costa County property record for 3700 Serrano St, Martinez, CA 94553 · Last verified July 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms4 Beds
Bathrooms2 Baths
Year BuiltBuilt 1949
Square Footage2,092 sqft Living Area
Lot Size11,625 sqft (0.267 acres)
OccupancyOwner Occupied
Last Sale$595,000 (2016)
Tax Bill$8,992.00 (2025)

Property Details

APN / Parcel Number

Primary APN370-094-026-9
Alternative APN
  • 370-094-026

Interior

Bedrooms4 Beds
Full Baths2 Baths
Partial Baths1 Partial Baths
Total Rooms10 Rooms
Building Area2,092 sqft Living Area
1st Floor1,302 sqft 1st Floor
Basement Area790 sqft Basement
Stories1 Stories

Exterior

Year BuiltBuilt 1949
Effective Year BuiltEffective 1949
Lot Area11,625 sqft (0.267 acres)
Parking Spaces1 Parking Spaces
Garage TypeAttached Garage
Garage Area360 sqft Garage

Utilities and HVAC

Cooling SystemCentral Cooling

Location & Zoning

Street Address3700 SERRANO ST
CityMARTINEZ
StateCA
Zip94553-3751
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionALTA LOMA POR LOTS 45 & 46
Legal SubdivisionALTA LOMA
Legal Lot Number45,46
JurisdictionCONTRA COSTA CA
Minor Civil DivisionCENTRAL CONTRA COSTA
Census Blockgroup2
Census Block2016
Census Tract318000

Owner

Source: Contra Costa County records · APN 370-094-026-9

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 Record2 Individual Names on File
Mailing Address3700 SERRANO ST, MARTINEZ, CA 94553-3751
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity
VestingJoint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleJul 14, 2016 · Amount on Record
Deed SaleJul 14, 2016 · Amount on Record
Deed Doc Number2016139430
Prior Transfer DateFeb 05, 2016
Prior Transfer Doc0000022168
Record RefreshedSep 20, 2026

July 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address3700 SERRANO ST, MARTINEZ, CA 94553-3751
Transaction TypeMortgage
Record UpdatedNov 03, 2022
Title CompanyCORINTHIAN TITLE COMPANY

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000150298
DateJul 23, 2020
Instrument2020-150298
Lender
NameUNITED WHOLESALE MORTGAGE
TypeMortgage Company
AddressPONTIAC, MI 48341
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term301 Months
DueAug 01, 2045

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$704,354 (+2%) Land $500,152 Building $204,202
2025$8,992.00 (+6.5%) Homeowner's exemption$690,545 (+4.04%) Land $490,346 Building $200,199
2023$8,443.00 (+1.69%) Homeowner's exemption$663,732 Land $471,306 Building $192,426
2022$8,303.00

Flood & Wildfire

3700 Serrano St is in FEMA Zone X, outside the Special Flood Hazard Area, with indirect wildfire exposure (High risk).

Flood

Source: FEMA National Flood Hazard Layer · Contra Costa County (06013C), updated October 12, 2026

FEMA Flood ZoneZone X
minimal flood hazard · outside the 0.2% annual chance floodplain
Special Flood Hazard AreaNo

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire Risk to HomesHigh
74th percentile of exposed land nationally · 50th in California
Wildfire LikelihoodHigh — about 1 in 248 per year
ExposureIndirect
within ember reach of burnable land · adjoins burnable vegetation

Values are read at the parcel center point; lenders make the official flood determination.

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