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4546 Blum Rd, Martinez, CA 94553 Property Records

Contra Costa County property record for 4546 Blum Rd, Martinez, CA 94553 · Last verified July 2026

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 1,079 sqft · built 1947
Lot Size0.23 acres (10,018 sqft)
OwnerIndividual Name on File
Last Sale$109,000 (Apr 1996)
Tax Bill$3,729 (2025)
Deeds & MortgagesMay 2026 Transfer
Flood ZoneZone X (minimal risk)
APN159-170-019-8

Property Details

APN / Parcel Number

Primary APN159-170-019-8
Alternative APN
  • 159-170-019

Interior

Bedrooms3 Beds
Full Baths2 Baths
Total Rooms6 Rooms
Stories1 Story
Building Area1,079 sqft Living Area
1st Floor Area1,079 sqft

Exterior

Year BuiltBuilt 1947
Effective Year BuiltEffective 1950
Architectural StyleRanch
Exterior MaterialWood
Roof MaterialComposition Shingle
Lot Area10,018 sqft (0.23 acres)
Lot Dimensions208 ft deep x 52 ft wide

Utilities, Heating & Cooling

Heating SystemFloor/Wall Furnace
Heating FuelGas
SewerMunicipal
Water SourceCommercial

Location & Zoning

Street Address4546 BLUM RD
CityMARTINEZ
StateCA
Zip94553-3600
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionPOR RO LAS JUNTAS
Legal SubdivisionRO LAS JUNTAS
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group1
Census Block1003
Census Tract320004

Owner

Source: Contra Costa County records · APN 159-170-019-8

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 RecordIndividual Name on File
Mailing Address4546 BLUM RD, MARTINEZ, CA 94553-3600
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleApr 19, 1996 · Amount on Record
Deed SaleApr 19, 1996 · Amount on Record
Prior SaleOct 10, 1995 · Amount on Record
Deed Document Number199671637
Last Transfer DateMay 22, 2026
Transfer Doc0000053897
Record UpdatedSep 20, 2026

May 2026: Transfer on Death Deed, Transfer

Document TypeTransfer on Death Deed
JurisdictionCONTRA COSTA CA
Recording DateMay 22, 2026
Property Address4546 BLUM RD, MARTINEZ, CA 94553-3600
Document Number0000053897
Instrument DateMay 22, 2026
Instrument202653897
Transaction TypeTransfer
Record UpdatedJul 12, 2026
Title CompanyNONE LISTED ON DOCUMENT

Transaction

Tax$0.00
Amount AccuracyFull Amount Stated

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name

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
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$234,472 (+2%) Land $124,964 Building $109,508
2025$3,729.00 (+7.87%) Homeowner's exemption$229,875 (+4.04%) Land $122,514 Building $107,361
2023$3,457.00 (+3.53%) Homeowner's exemption$220,950 Land $117,757 Building $103,193
2022$3,339.00

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 060133200041, 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
Community Rating SystemClass 6 (20% premium discount)
Nearby Flood Policies4 in force
Nearby Flood Claims1 (2017)
Claims Outside the SFHA1 of 1
Most Recent ClaimJan 2017, rainfall accumulation, Severe Winter Storms, Flooding, And Mudslides

Wildfire

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond 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 244 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
XfinityCable2,000 / 250
Radiate HoldingsFiber1,500 / 1,500
UnwiredFixed Wireless300 / 25
T-Mobile USAFixed Wireless100 / 20

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

Mobile Coverage

5G (outdoors only) and 4G LTE

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