4403 Black Walnut Ct, Concord, CA 94521 Property Records

Contra Costa County property record for 4403 Black Walnut Ct, Concord, CA 94521

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,026 sqft · built 1979
Lot Size	0.138 acres (6,000 sqft)
Owner	2 Individual Names on File
Last Sale	$171,000 (Jul 2020)
Tax Bill	$5,170 (2025)
Deeds & Mortgages	Jul 2020 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`133-260-044-2`

Property Details

APN / Parcel Number

Primary APN	`133-260-044-2`
Alternative APN	`133-260-044`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	2,026 sqft Living Area
1st Floor Area	1,241 sqft
2nd Floor Area	785 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1979
Effective Year Built	Effective 1980
Architectural Style	Traditional
Exterior Material	Wood Siding
Roof Material	Wood Shingle
Lot Area	6,000 sqft (0.138 acres)
Lot Dimensions	60 ft deep x 100 ft wide
Garage Type	Attached
Garage Area	431 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Forced Air with A/C
Heating Fuel	Gas
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	4403 BLACK WALNUT CT
City	CONCORD
State	CA
Zip	94521-4319
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	PD
Legal Description	T04838 L1066 B
Legal Subdivision	THE CROSSINGS
Legal Tract	04838
Legal Lot Number	1066
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	2
Census Block	2005
Census Tract	334006

Owner

4403 Black Walnut Ct is owned and occupied by two individuals who bought it in July 2020.

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

Owner of Record	2 Individual Names on File
Mailing Address	4403 BLACK WALNUT CT, CONCORD, CA 94521-4319
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

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 Names	2 Names on Deed
Last Sale	Jul 28, 2020 · Amount on File
Deed Sale	Jul 28, 2020 · Amount on File
Prior Sale	Aug 12, 1997 · Amount on File
Deed Document Number	2020154190
Prior Transfer Date	Jul 1, 2020
Prior Transfer Doc	0000154190
Record Updated	Oct 29, 2026

July 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jul 28, 2020
Property Address	4403 BLACK WALNUT CT, CONCORD, CA 94521-4319
Document Number	0000154190
Map Reference	MB 198 PG 14
Instrument Date	Jul 1, 2020
Instrument	2020-154190
Transaction Type	Transfer
Record Updated	Jul 27, 2021
Title Company	WFG NATIONAL TITLE COMPANY

Transaction

Amount	Amount on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Quitclaim

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	4403 BLACK WALNUT CT, CONCORD, CA 94521-4319

Mortgage

Document Number	0000154191
Date	Jul 28, 2020
Instrument	2020-154191

Lender

Name	OWNING CORPORATION
Type	Non-Lending Institution

Agreement

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

Tax Assessment & Valuation

The 2025 property tax bill for 4403 Black Walnut Ct was $5,170.

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$384,338 (+2%) Land $130,276 Building $254,062
2025	$5,170.00	$376,803 Land $127,722 Building $249,081
2023	$4,924.00 (+1.61%)	$362,173 Land $122,763 Building $239,410
2022	$4,846.00

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

Flood

FEMA maps place 4403 Black Walnut Ct in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective October 12, 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Wildfire risk around 4403 Black Walnut Ct is moderate, ranking above 43% of the US, with a 0.07% annual chance of wildfire.

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

Wildfire Risk	Moderate above 43% of the US · lower than 74% of California
Wildfire Likelihood	0.07% annual chance
Exposure	None beyond 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 669 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Astound Broadband Cable	1,500 / 50
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20
AT&T DSL	100 / 20