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4090 Lambert Rd, El Sobrante, CA 94803 Property Records

Contra Costa County property record for 4090 Lambert Rd, El Sobrante, CA 94803

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 1,554 sqft · built 1946
Lot Size0.276 acres (12,000 sqft)
OwnerTrust Name on File
Last Sale$335,000 (Jun 2014)
Tax Bill$6,508 (2025)
Deeds & MortgagesMar 2017 Transfer
Flood ZoneZone X (minimal risk)
APN425-040-022-5

Property Details

APN / Parcel Number

Primary APN425-040-022-5
Alternative APN
  • 425-040-022

Interior

Bedrooms3 Beds
Full Baths2 Baths
Total Rooms6 Rooms
Stories2 Stories
Building Area1,554 sqft Living Area
1st Floor Area1,130 sqft
2nd Floor Area424 sqft

Exterior

Year BuiltBuilt 1946
Effective Year BuiltEffective 1955
Lot Area12,000 sqft (0.276 acres)
Garage Area464 sqft
Parking Spaces1 Parking Space

Location & Zoning

Street Address4090 LAMBERT RD
CityEL SOBRANTE
StateCA
Zip94803-1710
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR6
Legal DescriptionSANTA RITA ACRES #6 346
Legal SubdivisionSANTA RITA ACRES 06
Legal Lot Number346
JurisdictionCONTRA COSTA CA
Township / Civil DivisionWEST CONTRA COSTA
Census Block Group1
Census Block1000
Census Tract363000

Owner

4090 Lambert Rd is held in a trust since March 2017.

Source: Contra Costa County records, as of July 14, 2026

Owner of RecordTrust Name on File
Mailing Address6031 145TH ST SW, EDMONDS, WA 98026-3638
Owner TypeCompany
VestingTrust

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleJun 20, 2014 · Amount on File
Deed SaleJun 20, 2014 · Amount on File
Deed Document Number2014101475
Last Transfer DateMar 16, 2017
Transfer Doc0000049704
Record UpdatedSep 20, 2026

March 2017: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateMar 22, 2017
Property Address4090 LAMBERT RD, EL SOBRANTE, CA 94803-1710
Document Number0000049704
Instrument DateMar 16, 2017
Instrument49704
Transaction TypeTransfer
Record UpdatedMar 28, 2017

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address20913 32ND AVE SE BOTHELL WA 980213526, BOTHELL, WA 98021-3526

Tax Assessment & Valuation

The 2025 property tax bill for 4090 Lambert Rd was $6,508.

Source: Contra Costa County assessment roll, as of July 14, 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
Unified School DistrictWest Contra Costa Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$418,862 (+2%) Land $250,069 Building $168,793
2025$6,508.00$410,650 Land $245,166 Building $165,484
2023$6,222.00 (+1.48%)$394,706 Land $235,647 Building $159,059
2022$6,131.00

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

Flood

FEMA maps place 4090 Lambert Rd in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on File
median of 13 policies
Community Rating SystemClass 10 (0% premium discount)
Nearby Flood Policies13 in force

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

Wildfire risk around 4090 Lambert Rd is low, with a 0.02% annual chance of wildfire.

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

Wildfire RiskLow
lower than 80% of the US · lower than 88% of California
Wildfire Likelihood0.02% annual chance
ExposureDirect
burnable vegetation

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 SystemEAST BAY MUD
serves 1,468,000 people · EPA ID CA0110005
Water SourceSurface water
Last State InspectionDec 2021
LeadUnder 1 ppb (2022–2024)
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. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 481 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Verizon
Fixed Wireless		300 / 20
AT&T
DSL · Fiber in parts of the area		100 / 20

May also be available: Sonic Telecom, T-Mobile, Unwired.

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