328 Downham Ct, Walnut Creek, CA 94598 Property Records

Contra Costa County property record for 328 Downham Ct, Walnut Creek, CA 94598

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,202 sqft · built 1977
Lot Size	0.242 acres (10,560 sqft)
Owner	2 Individual Names on Record
Last Sale	$605,000 (May 2011)
Tax Bill	$9,364 (2025)
Deeds & Mortgages	Aug 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`143-103-014-5`

Property Details

APN / Parcel Number

Primary APN	`143-103-014-5`
Alternative APN	`143-103-014`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	10 Rooms
Stories	2 Stories
Building Area	2,202 sqft Living Area
Gross Area	2,796 sqft
1st Floor Area	1,167 sqft
2nd Floor Area	1,035 sqft

Exterior

Year Built	Built 1977
Effective Year Built	Effective 1988
Lot Area	10,560 sqft (0.242 acres)
Garage Type	Attached
Garage Area	594 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	328 DOWNHAM CT
City	WALNUT CREEK
State	CA
Zip	94598-2320
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10
Legal Description	T04591 L0026 B
Legal Tract	04591
Legal Lot Number	26
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	2
Census Block	2021
Census Tract	338201

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 Individual Names on Record
Mailing Address	328 DOWNHAM CT, WALNUT CREEK, CA 94598-2320
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 3, 2011 · Amount on Record
Deed Sale	May 3, 2011 · Amount on Record
Prior Sale	May 6, 2005 · Amount on Record
Deed Document Number	201188830
Last Transfer Date	Jul 17, 2020
Transfer Doc	0000161415
Record Updated	Oct 29, 2026

August 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Aug 4, 2020
Property Address	328 DOWNHAM CT, WALNUT CREEK, CA 94598-2320
Document Number	0000161415
Instrument Date	Jul 17, 2020
Instrument	161415
Transaction Type	Transfer
Record Updated	Aug 12, 2020
Title Company	NEXTITLE

Transaction

Tax	$0.00
Amount Accuracy	Full Value
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	328 DOWNHAM CT WALNUT CREEK CA 945982320, WALNUT CREEK, CA 94598-2320

Mortgage

Document Number	161416
Date	Aug 4, 2020
Instrument	161416

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Amount	Amount Recorded
Term	360 Months
Due	Aug 3, 2050

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$790,602 (+2%) Land $548,849 Building $241,753
2025	$9,364.00 (+4.11%) Homeowner's exemption	$775,101 (+4.04%) Land $538,088 Building $237,013
2023	$8,994.00 (+0.89%) Homeowner's exemption	$745,005 Land $517,195 Building $227,810
2022	$8,915.00

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
Community Rating System	Class 8 (10% premium discount)
Nearby Flood Policies	2 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

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

Wildfire Risk	Not rated no burnable land 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 369 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Astound Broadband Cable · Fiber in parts of the area	1,500 / 50
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
AT&T DSL	100 / 20

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

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