4150 Leon Dr, Clayton, CA 94517 Property Records

Contra Costa County property record for 4150 Leon Dr, Clayton, CA 94517

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 2,102 sqft · built 1977
Lot Size	5 acres (217,800 sqft)
Owner	2 Company Names on Record
Tax Bill	$6,197 (2025)
Deeds & Mortgages	Oct 2020 Mortgage Feb 2020 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`078-310-021-7`

Property Details

APN / Parcel Number

Primary APN	`078-310-021-7`
Alternative APN	`078-310-021`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	1 Room
Stories	1 Story
Building Area	2,102 sqft Living Area
1st Floor Area	2,102 sqft

Exterior

Year Built	Built 1977
Effective Year Built	Effective 1992
Architectural Style	Ranch
Exterior Material	Wood
Roof Material	Composition Shingle
Lot Area	217,800 sqft
Parking Spaces	3 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Wall Unit
Heating Fuel	Gas
Sewer	Septic

Location & Zoning

Street Address	4150 LEON DR
City	CLAYTON
State	CA
Zip	94517-9701
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	A2
Legal Description	PCL MAP 104 PG 37 PCL C
Legal Subdivision	PM
Legal Tract	104PM37
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	TASSAJARA
Census Block Group	1
Census Block	1043
Census Tract	355112

Owner

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

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Company Names on Record
Mailing Address	4150 LEON DR, CLAYTON, CA 94517-9701
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Life Tenant

Deeds, Mortgages & Sale History

Date	Document
Oct 8, 2020	Deed of Trust, Mortgage · Conventional Mortgage JMAC LENDING INC
Feb 24, 2020	Intrafamily Transfer, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE
Sep 24, 2019	Loan Modification, Mortgage · Conventional Mortgage TRI COUNTIES BANK
Oct 5, 2017	Deed of Trust, Mortgage · Line of Credit TRI COUNTIES BANK

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Nov 4, 2024
Transfer Doc	0000120002
Record Updated	Sep 20, 2026

October 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	4150 LEON DR, CLAYTON, CA 94517-9701
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	FIDELITY TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4150 LEON DR, CLAYTON, CA 94517-9701

Mortgage

Document Number	0000231239
Date	Oct 8, 2020
Instrument	2020-231239

Lender

Name	JMAC LENDING INC
Type	Mortgage Company
Address	SANTA ANA, CA 92705

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 1, 2050

February 2020: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Feb 24, 2020
Property Address	4150 LEON DR, CLAYTON, CA 94517-9701
Document Number	0000033970
Map Reference	MB 104 PG 30
Instrument Date	Feb 14, 2020
Instrument	2020-033970
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	FIDELITY NATIONAL TITLE CO

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	4150 LEON DR, CLAYTON, CA 94517-9701

Mortgage

Document Number	0000033971
Date	Feb 24, 2020
Instrument	2020-033971

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Mar 1, 2050

September 2019: Loan Modification, Mortgage

Document Type	Loan Modification
Jurisdiction	CONTRA COSTA CA
Property Address	4150 LEON DR, CLAYTON, CA 94517-9701
Document Number	0000163579
Instrument Date	Sep 24, 2019
Transaction Type	Mortgage
Record Updated	Oct 8, 2019
Title Company	FIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	4150 LEON DR CLAYTON CA 945179701, CLAYTON, CA 94517-9701

Mortgage

Document Number	0000163579
Date	Sep 30, 2019
Instrument	163579

Lender

Name	TRI COUNTIES BANK
Type	Bank
Address	BRENTWOOD, CA 94513

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded

October 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	4150 LEON DR, CLAYTON, CA 94517-9701
Document Number	0000185698
Instrument Date	Oct 5, 2017
Transaction Type	Mortgage
Record Updated	Oct 16, 2017
Title Company	FIRST AMERICAN TITLE, FIRST AMERICAN TITLE OFS

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	4150 LEON DR CLAYTON CA 945179701, CLAYTON, CA 94517-9701

Mortgage

Document Number	0000185698
Date	Oct 11, 2017
Instrument	185698

Lender

Name	TRI COUNTIES BANK
Type	Bank
Address	BRENTWOOD, CA 94513

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$565,930 (+2%) Land $278,032 Building $287,898
2025	$6,197.00 (+3.75%) Homeowner's exemption	$554,834 (+4.04%) Land $272,581 Building $282,253
2023	$5,973.00 (+0.88%) Homeowner's exemption	$533,292 Land $261,998 Building $271,294
2022	$5,921.00

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

Flood

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 Record median of 14 policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	14 in force
Nearby Flood Claims	2 (1982–2017)
Most Recent Claim	Jan 2017 · Severe Winter Storms, Flooding, And Mudslides

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

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

Wildfire Risk	High above 89% of the US · above 70% of California
Wildfire Likelihood	1% 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	CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003
Water Source	Surface water
Last State Inspection	Jan 2022
Lead	Under 1 ppb (2026–2028) 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.

Internet Providers

Source: FCC Broadband Data Collection, based on 33 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 2,000
Verizon Fixed Wireless	300 / 20
Starlink Satellite	280 / 30
T-Mobile Fixed Wireless	25 / 3

Cell Coverage

5G (outdoors only) and 4G LTE

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