Contra Costa County property record for 502 Tampico, Walnut Creek, CA 94598
| Property Type | Townhouse |
|---|---|
| Details | 3 bd · 2 ba · 1,424 sqft · built 1971 |
| Lot Size | 0.066 acres (2,856 sqft) |
| Owner | Individual Name on File |
| Last Sale | $650,000 (Nov 2016) |
| Tax Bill | $9,192 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 140-362-004-8 |
| Primary APN | 140-362-004-8 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,424 sqft Living Area |
| 1st Floor Area | 1,424 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1971 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | Townhouse |
| Lot Area | 2,856 sqft (0.066 acres) |
| Lot Dimensions | 102 ft deep x 28 ft wide |
| Garage Type | Attached |
| Garage Area | 440 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Street Address | 502 TAMPICO |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94598-2921 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Townhouse |
| Local Zoning Code | CDP |
| Legal Description | TRACT 3753 LOT 59 |
| Legal Subdivision | SAN MARCO |
| Legal Tract | 3753 |
| Legal Lot Number | 59 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2005 |
| Census Tract | 343002 |
502 Tampico, a townhouse, is owned and occupied by an individual who bought it in November 2016.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 502 TAMPICO, WALNUT CREEK, CA 94598-2921 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Nov 4, 2016 · Amount on File |
| Deed Sale | Nov 4, 2016 · Amount on File |
| Prior Sale | Dec 10, 2012 · Amount on File |
| Deed Document Number | 2016238646 |
| Prior Transfer Date | Dec 4, 2012 |
| Prior Transfer Doc | 0000326202 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 502 Tampico was $9,192.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Walnut Creek City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $769,461 (+2%) Land $549,279 Building $220,182 | |
| 2025 | $9,192.00 | $754,374 Land $538,509 Building $215,865 |
| 2023 | $8,829.00 (+0.87%) | $725,083 Land $517,599 Building $207,484 |
| 2022 | $8,753.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 502 Tampico in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2004.
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 | 3 in force |
| Nearby Flood Claims | 1 (2004) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Jan 2004 · tidal / storm surge |
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 risk around 502 Tampico is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 301 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fixed Wireless in parts of the area | 100 / 20 |
May also be available: Etheric Networks, Sonic Telecom.
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