Contra Costa County property record for 182 Sierra Dr, Walnut Creek, CA 94596
| Property Type | Quadplex |
|---|---|
| Details | 3 bd · 1 ba · 4,040 sqft · built 1984 |
| Lot Size | 0.185 acres (8,060 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $313,000 (Nov 1999) |
| Tax Bill | $15,228 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 179-070-055-1 |
| Primary APN | 179-070-055-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 4,040 sqft Living Area |
| 1st Floor Area | 4,040 sqft |
| Year Built | Built 1984 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | Quadruplex |
| Lot Area | 8,060 sqft (0.185 acres) |
| Garage Area | 450 sqft |
| Parking Spaces | 4 Parking Spaces |
| Street Address | 182 SIERRA DR |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94596-4959 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Quadplex |
| Legal Description | WALNUT HEIGHTS #2 POR LOT A |
| Legal Subdivision | WALNUT HEIGHTS 02 |
| Legal Lot Number | A |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 343001 |
Source: Contra Costa County records, as of July 14, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | PO BOX 21854, EL SOBRANTE, CA 94820-1854 |
| Owner Type | Individual |
| Vesting | Single Person |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Nov 5, 1999 · Amount on Record |
| Deed Sale | Nov 5, 1999 · Amount on Record |
| Prior Sale | Jul 11, 1996 · Amount on Record |
| Deed Document Number | 1999294060 |
| Record Updated | Oct 29, 2026 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Walnut Creek City |
| Secondary School District | Acalanes Union High School District (09 - 12) |
| Elementary School District | Walnut Creek Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $795,719 (+2%) Land $265,787 Building $529,932 | |
| 2025 | $15,228.00 (+35.2%) | $780,118 (+4.04%) Land $260,576 Building $519,542 |
| 2023 | $11,263.00 (+0.58%) | $749,826 Land $250,458 Building $499,368 |
| 2022 | $11,198.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 | 5 in force |
| Nearby Flood Claims | 18 (1980–2022) |
| Most Recent Claim | Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
| Claims by Event |
|
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.
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 | Indirect within 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 433 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| Xfinity Cable | 2,000 / 2,000 |
| Astound Broadband Cable · Fiber in parts of the area | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: Etheric Networks, Verizon.
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