4050 Lambert Rd, El Sobrante, CA 94803 Property Records

Contra Costa County property record for 4050 Lambert Rd, El Sobrante, CA 94803

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 755 sqft · built 1950
Lot Size	0.23 acres (10,000 sqft)
Owner	Individual Name on File
Last Sale	$285,000 (Jan 2003)
Tax Bill	$6,387 (2025)
Deeds & Mortgages	Jun 2018 Line of Credit May 2022 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`425-040-014-2`

Property Details

APN / Parcel Number

Primary APN	`425-040-014-2`
Alternative APN	`425-040-014`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	5 Rooms
Stories	1 Story
Building Area	755 sqft Living Area
1st Floor Area	755 sqft

Exterior

Year Built	Built 1950
Effective Year Built	Effective 1950
Architectural Style	Bungalow
Exterior Material	Wood Siding
Roof Material	Composition Shingle
Lot Area	10,000 sqft (0.23 acres)
Garage Type	Carport
Carport	Carport
Deck Area	Deck Area

Utilities, Heating & Cooling

Heating System	Floor/Wall Furnace
Heating Fuel	Gas
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	4050 LAMBERT RD
City	EL SOBRANTE
State	CA
Zip	94803-1710
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R6
Legal Description	SANTA RITA ACRES #6 POR LOT 353
Legal Subdivision	SANTA RITA ACRES 06
Legal Lot Number	353
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	WEST CONTRA COSTA
Census Block Group	1
Census Block	1000
Census Tract	363000

Owner

4050 Lambert Rd is owned and occupied by an individual who bought it in January 2003.

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

Owner of Record	Individual Name on File
Mailing Address	584 CASTRO ST, 447, SAN FRANCISCO, CA 94114-2512
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Single Person

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

Date	Document
Jun 28, 2018	Deed of Trust, Mortgage · Line of Credit PATELCO CU
May 4, 2022	Deed of Trust, Mortgage · Conventional Mortgage PATELCO CU

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jan 10, 2003 · Amount on File
Deed Sale	Jan 10, 2003 · Amount on File
Deed Document Number	200313384
Record Updated	Oct 29, 2026

June 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	4050 LAMBERT RD, EL SOBRANTE, CA 94803-1710
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	PLACER TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000103019
Date	Jun 28, 2018
Instrument	2018-103019

Lender

Name	PATELCO CU
Type	Credit Union
Address	PLEASANTON, CA 94588

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	301 Months
Due	Jul 30, 2043

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

May 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	4050 LAMBERT RD, EL SOBRANTE, CA 94803-1710
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	PLACER TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4050 LAMBERT RD, EL SOBRANTE, CA 94803-1710

Mortgage

Document Number	0000077573
Date	May 4, 2022
Instrument	2022-077573

Lender

Name	PATELCO CU
Type	Credit Union
Address	DUBLIN, CA 94568

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	181 Months
Due	Jun 1, 2037

Tax Assessment & Valuation

The 2025 property tax bill for 4050 Lambert Rd was $6,387 with a homeowner's exemption.

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

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Unified School District	West Contra Costa Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$421,007 (+2%) Land $333,268 Building $87,739
2025	$6,387.00 Homeowner's exemption	$412,753 Land $326,734 Building $86,019
2023	$6,100.00 (+1.51%) Homeowner's exemption	$396,728 Land $314,048 Building $82,680
2022	$6,009.00

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

Flood

FEMA maps place 4050 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 Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 13 policies
Community Rating System	Class 10 (0% premium discount)
Nearby Flood Policies	13 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 4050 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 Risk	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.02% annual chance
Exposure	Direct 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 System	EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005
Water Source	Surface water
Last State Inspection	Dec 2021
Lead	Under 1 ppb (2022–2024) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None 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

Provider	Max 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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