Contra Costa County property record for 320 Warmcastle Ct, Martinez, CA 94553 · Last verified August 2026
| Property Type | Residential > Condominium / Townhouse > Condominium |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 2 Baths |
| Year Built | Built 1991 |
| Square Footage | 1,437 sqft Living Area |
| Lot Size | 3,000 sqft (0.069 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $340,000 (2010) |
| Tax Bill | $5,998.00 (2025) |
| Primary APN | 161-560-017-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Building Area | 1,437 sqft Living Area |
| 1st Floor | 1,437 sqft 1st Floor |
| Stories | 1 Stories |
| Year Built | Built 1991 |
|---|---|
| Effective Year Built | Effective 1991 |
| Architectural Style | Condo/Apartment Style |
| Lot Area | 3,000 sqft (0.069 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 495 sqft Garage |
| Cooling System | Central Cooling |
|---|
| Street Address | 320 WARMCASTLE CT |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-6814 |
| Property Usage | Residential Property Usage |
| Type | Residential > Condominium / Townhouse > Condominium |
| Legal Description | T6962 U93 |
| Legal Subdivision | MARTINEZ |
| Legal Tract | 6962 |
| Legal Lot Number | 7 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | CENTRAL CONTRA COSTA |
| Census Blockgroup | 3 |
| Census Block | 3005 |
| Census Tract | 320004 |
Source: Contra Costa County records · APN 161-560-017-6
Assessment roll updated July 14, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 320 WARMCASTLE CT, MARTINEZ, CA 94553-6814 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jul 14, 2010 · Amount on Record |
| Deed Sale | Jul 14, 2010 · Amount on Record |
| Deed Doc Number | 2010140459 |
| Last Transfer Date | Feb 07, 2012 |
| Transfer Doc | 0000030516 |
| Record Refreshed | Sep 20, 2026 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Martinez City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $444,296 (+2%) Land $250,897 Building $193,399 | |
| 2025 | $5,998.00 (+5.1%) Homeowner's exemption | $435,585 (+4.04%) Land $245,978 Building $189,607 |
| 2023 | $5,707.00 (+2.04%) Homeowner's exemption | $418,673 Land $236,427 Building $182,246 |
| 2022 | $5,593.00 |
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