309 Warmcastle Ct, Martinez, CA 94553 Property Records

Contra Costa County property record for 309 Warmcastle Ct, Martinez, CA 94553

Property Summary

Property Type	Condominium
Details	3 bd · 2.5 ba · 1,382 sqft · built 1990
Lot Size	0.019 acres (827 sqft)
Owner	Individual Name on Record
Last Sale	$623,500 (Jun 2024)
Tax Bill	$8,319 (2025)
Deeds & Mortgages	Jul 2026 Mortgage Nov 2022 Line of Credit + 6 more
Flood Zone	Zone X (minimal risk)
APN	`161-560-003-6`

Property Details

APN / Parcel Number

Primary APN	`161-560-003-6`
Alternative APN	`161-560-003`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	1,382 sqft Living Area
1st Floor Area	601 sqft
2nd Floor Area	781 sqft

Exterior

Year Built	Built 1990
Effective Year Built	Effective 2000
Architectural Style	Condo/Apartment
Lot Area	827 sqft (0.019 acres)
Garage Type	Attached
Garage Area	240 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	309 WARMCASTLE CT
City	MARTINEZ
State	CA
Zip	94553-6814
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Legal Description	T6962 U79
Legal Subdivision	SUBDIVISION 6962
Legal Tract	6962
Legal Lot Number	7
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, as of July 27, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	Individual Name on Record
Mailing Address	309 WARMCASTLE CT, MARTINEZ, CA 94553-6814
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jul 20, 2026	Deed of Trust, Mortgage · Conventional Mortgage CALIFORNIA CREDIT UNION
Nov 22, 2022	Deed of Trust, Mortgage · Line of Credit COASTAL COMMUNITY BANK
Oct 3, 2019	Deed of Trust, Mortgage · Conventional Mortgage ALAMEDA MORTGAGE CORP
Jun 11, 2020	Deed of Trust, Mortgage · Conventional Mortgage UNITED WHOLESALE MORTGAGE
Jun 27, 2022	Deed of Trust, Mortgage · Line of Credit COASTAL COMMUNITY BANK
Jan 31, 2022	Intrafamily Transfer, Transfer
Apr 20, 2018	Grant Deed, Transfer CHICAGO TITLE COMPANY
Apr 20, 2018	Intrafamily Transfer, Transfer · Conventional Mortgage ALAMEDA MORTGAGE CORP

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 27, 2024 · Amount on Record
Deed Sale	Jun 27, 2024 · Amount on Record
Prior Sale	Apr 20, 2018 · Amount on Record
Deed Document Number	202461571
Prior Transfer Date	Apr 12, 2018
Prior Transfer Doc	0000061179
Record Updated	Oct 29, 2026

July 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Recording Date	Jul 20, 2026
Property Address	309 WARMCASTLE CT, MARTINEZ, CA 94553-6814
Document Number	0000075994
Instrument Date	Jul 14, 2026
Instrument	202675994
Transaction Type	Mortgage
Record Updated	Jul 27, 2026
Title Company	CHICAGO TITLE W, CHICAGO TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	309 WARMCASTLE CT, MARTINEZ, CA 94553-6814

Mortgage

Document Number	0000075994,
Date	Jul 20, 2026
Instrument	202675994

Lender

Name	CALIFORNIA CREDIT UNION

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Aug 1, 2056

Interest

Rate Type	Fixed Rate
Rate	6.47%
Initial Type	Fixed Rate
Max Rate	-1%

November 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	309 WARMCASTLE CT, MARTINEZ, CA 94553-6814
Transaction Type	Mortgage
Record Updated	Dec 1, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	309 WARMCASTLE CT, BRIONES, CA 94553-6814

Mortgage

Document Number	0000176201
Date	Nov 22, 2022
Instrument	2022-176201

Lender

Name	COASTAL COMMUNITY BANK
Type	Bank
Address	BURLINGAME, CA 94010

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

October 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	309 WARMCASTLE CT, MARTINEZ, CA 94553-6814
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000167128
Date	Oct 3, 2019
Instrument	2019-167128

Lender

Name	ALAMEDA MORTGAGE CORP
Type	Mortgage Company
Address	WALNUT CREEK, CA 94596

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Oct 1, 2049

June 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	309 WARMCASTLE CT, MARTINEZ, CA 94553-6814
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	FIDELITY NATIONAL TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000111745
Date	Jun 11, 2020
Instrument	2020-111745

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company
Address	PONTIAC, MI 48341

Agreement

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

June 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	309 WARMCASTLE CT, MARTINEZ, CA 94553-6814
Transaction Type	Mortgage
Record Updated	Nov 3, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	309 WARMCASTLE CT, MARTINEZ, CA 94553-6814

Mortgage

Document Number	0000104811
Date	Jun 27, 2022
Instrument	2022-104811

Lender

Name	COASTAL COMMUNITY BANK
Type	Bank
Address	BURLINGAME, CA 94010

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

January 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Jan 31, 2022
Property Address	309 WARMCASTLE CT, MARTINEZ, CA 94553-6814
Document Number	0000018148
Map Reference	MB 326 PG 37
Instrument Date	Jan 28, 2022
Instrument	2022-018148
Transaction Type	Transfer
Record Updated	Jun 7, 2023

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	Revocable Trust
Address	1028 HOEDEL CT, LAFAYETTE, CA 94549-4108

April 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Apr 20, 2018
Property Address	309 WARMCASTLE CT, MARTINEZ, CA 94553-6814
Document Number	0000061178
Map Reference	MB 326 PG 37
Instrument Date	Apr 12, 2018
Instrument	2018-061178
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	CHICAGO TITLE COMPANY

Transaction

Amount	Amount Recorded
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1925 JEFFERSON ST APT 102, 102, SAN FRANCISCO, CA 94123-1072

April 2018: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Apr 20, 2018
Property Address	309 WARMCASTLE CT, MARTINEZ, CA 94553-6814
Document Number	0000061179
Map Reference	MB 326 PG 37
Instrument Date	Apr 12, 2018
Instrument	2018-061179
Transaction Type	Transfer
Record Updated	Nov 3, 2022
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
Address	1925 JEFFERSON ST APT 102, 102, SAN FRANCISCO, CA 94123-1072

Mortgage

Document Number	0000061180
Date	Apr 20, 2018
Instrument	2018-061180

Lender

Name	ALAMEDA MORTGAGE CORP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	May 1, 2048

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	Martinez City
Unified School District	Mount Diablo Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$575,000 (-9.59%) Land $276,665 Building $298,335
2025	$8,319.00 (+27.77%)	$635,970 (+31.56%) Land $306,000 Building $329,970
2023	$6,511.00 (+1.86%)	$483,389 Land $251,538 Building $231,851
2022	$6,392.00

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
Nearby Flood Claims	1 (1979)
Most Recent Claim	Oct 1979 · rainfall accumulation

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 454 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

May also be available: Astound Broadband, AT&T, Verizon.

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