328 Warmcastle Ct, Martinez, CA 94553 Property Records

Contra Costa County property record for 328 Warmcastle Ct, Martinez, CA 94553

Property Summary

Property Type	Condominium
Details	3 bd · 2 ba · 1,437 sqft · built 1991
Lot Size	0.043 acres (1,864 sqft)
Owner	2 Individual Names on File
Tax Bill	$5,034 (2025)
Deeds & Mortgages	Sep 2023 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`161-560-015`

Property Details

APN / Parcel Number

Primary APN	`161-560-015`
Alternative APN	`161-560-015-0`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,437 sqft Living Area
1st Floor Area	1,437 sqft

Exterior

Year Built	Built 1991
Effective Year Built	Effective 1991
Architectural Style	Condo/Apartment
Lot Area	1,864 sqft (0.043 acres)
Garage Type	Attached
Garage Area	495 sqft
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	328 WARMCASTLE CT
City	MARTINEZ
State	CA
Zip	94553-6814
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Legal Description	T6962 U91
Legal Subdivision	SUBDIVISION 6962
Legal Tract	6962
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	3
Census Block	3005
Census Tract	320004

Owner

Source: Contra Costa County records · APN 161-560-015

Assessment roll updated July 14, 2026 · Last verified July 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 File
Mailing Address	3221 APACHE CT, LAFAYETTE, CA 94549-5401
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Transfer Date	Aug 30, 2023
Transfer Doc	0000086148
Record Updated	Sep 20, 2026

September 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Sep 06, 2023
Property Address	328 WARMCASTLE CT, MARTINEZ, CA 94553-6814
Document Number	0000086148
Map Reference	MB 326 PG 37
Instrument Date	Aug 30, 2023
Instrument	2023-086148
Transaction Type	Transfer
Record Updated	Sep 15, 2023
Title Company	CHICAGO 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	Community Property with Right of Survivorship
Address	3221 APACHE CT, LAFAYETTE, CA 94549-5401

Mortgage

Document Number	0000086149
Date	Sep 06, 2023
Instrument	2023-086149

Lender

Name	AMERICAN PACIFIC MORTGAGE CORP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Sep 01, 2053

Tax Assessment & Valuation

Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026

Property Jurisdictions

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

Tax Bill & Assessment History

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

Year	Tax Bill	Assessed Value
2026		$349,532 (+2%) Land $113,905 Building $235,627
2025	$5,034.00 (+5.27%)	$342,679 (+4.04%) Land $111,672 Building $231,007
2023	$4,782.00 (+2.25%)	$329,375 Land $107,337 Building $222,038
2022	$4,677.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Claims	1 (1979)
Most Recent Claim	Oct 1979 · rainfall accumulation

Wildfire

Wildfire Risk	Not rated no burnable land within ember reach

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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
T-Mobile USA Fixed Wireless	100 / 20

May also be available: AT&T, Radiate Holdings, Verizon.

Based on FCC filings for 454 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CONTRA COSTA WATER DISTRICT serves 210,500 people
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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.