815 Chert Pl, Clayton, CA 94517 Property Records

Contra Costa County property record for 815 Chert Pl, Clayton, CA 94517

Property Summary

Property Type	Townhouse
Details	3 bd · 2.5 ba · 1,939 sqft · built 1993
Lot Size	0.09 acres (3,903 sqft)
Owner	2 Individual Names on File
Last Sale	$828,000 (Jan 2025)
Tax Bill	$7,997 (2025)
Deeds & Mortgages	Sep 2025 Mortgage Aug 2018 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`118-460-039-1`

Property Details

APN / Parcel Number

Primary APN	`118-460-039-1`
Alternative APN	`118-460-039`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	1,939 sqft Living Area
1st Floor Area	1,048 sqft
2nd Floor Area	891 sqft

Exterior

Year Built	Built 1993
Effective Year Built	Effective 1993
Architectural Style	Townhouse
Lot Area	3,903 sqft (0.09 acres)
Garage Type	Attached
Garage Area	455 sqft
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	815 CHERT PL
City	CLAYTON
State	CA
Zip	94517-1231
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Townhouse
Legal Description	T7311 L39
Legal Subdivision	BLACK DIAMOND
Legal Tract	7311
Legal Lot Number	39
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	2
Census Block	2004
Census Tract	355308

Owner

815 Chert Pl, a townhouse, is owned by two individuals who bought it in January 2025.

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

Owner of Record	2 Individual Names on File
Mailing Address	13 ATCHINSON STAGE CT, CLAYTON, CA 94517-1101
Owner Type	Individual
Vesting	Community Property

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
Sep 29, 2025	Grant Deed, Transfer · Conventional Mortgage CMG MORTGAGE INC
Aug 2, 2018	Deed of Trust, Mortgage · Conventional Mortgage GUARNATEED RATE AFFINITY LLC
May 20, 2020	Intrafamily Transfer, Transfer · Conventional Mortgage GUARANTEED RATE AFFINITY LLC
Aug 30, 2019	Intrafamily Transfer, Transfer · Conventional Mortgage GUARANTEED RATE AFFINITY LLC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jan 22, 2025 · Amount on File
Deed Sale	Jan 22, 2025 · Amount on File
Prior Sale	Mar 14, 2002 · Amount on File
Deed Document Number	20256075
Prior Transfer Date	Jun 8, 1995
Prior Transfer Doc	0000096474
Record Updated	Oct 29, 2026

September 2025: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Sep 29, 2025
Property Address	815 CHERT PL, CLAYTON, CA 94517-1231
Document Number	0000101526
Map Reference	MB 344 PG 13
Instrument Date	Sep 25, 2025
Instrument	2025- 101526
Transaction Type	Transfer
Record Updated	Oct 8, 2025
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Right of Survivorship
Address	13 ATCHINSON STAGE CT, CLAYTON, CA 94517-1101

Mortgage

Document Number	0000101527
Date	Sep 29, 2025
Instrument	2025- 101527

Lender

Name	CMG MORTGAGE INC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Oct 1, 2055

August 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	815 CHERT PL, CLAYTON, CA 94517-1231
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	OLD REPUBLIC TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000123399
Date	Aug 2, 2018
Instrument	2018-123399

Lender

Name	GUARNATEED RATE AFFINITY LLC
Type	Non-Lending Institution
Address	CHICAGO, IL 60613

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	180 Months
Due	Aug 1, 2033

May 2020: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	May 20, 2020
Property Address	815 CHERT PL, CLAYTON, CA 94517-1231
Document Number	0000095863
Map Reference	MB 344 PG 13
Instrument Date	May 12, 2020
Instrument	2020-095863
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	OLD REPUBLIC TITLE COMPANY

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	Family Revocable Trust
Address	815 CHERT PL, CLAYTON, CA 94517-1231

Mortgage

Document Number	0000095864
Date	May 20, 2020
Instrument	2020-095864

Lender

Name	GUARANTEED RATE AFFINITY LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jun 1, 2050

August 2019: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Aug 30, 2019
Property Address	815 CHERT PL, CLAYTON, CA 94517-1231
Document Number	0000141934
Map Reference	MB 344 PG 13
Instrument Date	Aug 23, 2019
Instrument	2019-141934
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	OLD REPUBLIC TITLE COMPANY

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	Family Revocable Trust
Address	815 CHERT PL, CLAYTON, CA 94517-1231

Mortgage

Document Number	0000141935
Date	Aug 30, 2019
Instrument	2019-141935

Lender

Name	GUARANTEED RATE AFFINITY LLC
Type	Non-Lending Institution

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Sep 1, 2049

Tax Assessment & Valuation

The 2025 property tax bill for 815 Chert Pl was $7,997.

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$844,560 (+42.93%) Land $433,500 Building $411,060
2025	$7,997.00	$590,900 Land $361,929 Building $228,971
2023	$7,530.00 (+0.59%)	$567,957 Land $347,876 Building $220,081
2022	$7,486.00

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

Flood

FEMA maps place 815 Chert Pl in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

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
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	3 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 815 Chert Pl is moderate, ranking above 52% of the US, with a 0.1% annual chance of wildfire.

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

Wildfire Risk	Moderate above 52% of the US · lower than 69% of California
Wildfire Likelihood	0.1% annual chance
Exposure	Indirect within ember reach

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 342 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless · Fiber in parts of the area	100 / 20

May also be available: Verizon.

Nearby Properties on Chert Pl

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures