Contra Costa County property record for 641 Walnut Ave, Martinez, CA 94553 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 1 Beds |
| Bathrooms | 1 Baths |
| Year Built | Built 1948 |
| Square Footage | 1,039 sqft Living Area |
| Lot Size | 8,450 sqft (0.194 acres) |
| Garage | Attached, 315 sqft |
| Last Sale | $250,000 (2015) |
| Tax Bill | $3,459.00 (2025) |
| Primary APN | 370-291-005-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 1 Beds |
|---|---|
| Full Baths | 1 Baths |
| Total Rooms | 3 Rooms |
| Building Area | 1,039 sqft Living Area |
| 1st Floor | 1,039 sqft 1st Floor |
| Stories | 1 Stories |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1948 |
| Lot Area | 8,450 sqft (0.194 acres) |
| Parking Spaces | 1 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 315 sqft Garage |
| Street Address | 641 WALNUT AVE |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-3963 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | ALHAMBRA VALLEY GARDEN #1 POR LOT 4 |
| Legal Subdivision | ALHAMBRA VLY GARDEN |
| Legal Lot Number | 4 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | CENTRAL CONTRA COSTA |
| Census Blockgroup | 1 |
| Census Block | 1006 |
| Census Tract | 319001 |
Source: Contra Costa County records · APN 370-291-005-4
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 | Company Name on File |
|---|---|
| Mailing Address | 200 VERNAL DR, ALAMO, CA 94507-1232 |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Mar 19, 2015 · Amount on Record |
| Deed Sale | Mar 19, 2015 · Amount on Record |
| Prior Sale | Jul 15, 2011 · Amount on Record |
| Deed Doc Number | 201549732 |
| Prior Transfer Date | Mar 10, 2015 |
| Prior Transfer Doc | 0000049731 |
| Record Refreshed | Sep 20, 2026 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Martinez City |
| Unified School District | Martinez 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 | $281,845 (+2%) Land $219,202 Building $62,643 | |
| 2025 | $3,459.00 (+6.04%) | $276,319 (+4.04%) Land $214,904 Building $61,415 |
| 2023 | $3,262.00 (+1.65%) | $265,591 Land $206,560 Building $59,031 |
| 2022 | $3,209.00 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures