Contra Costa County property record for 11 Simpson Dr, Walnut Creek, CA 94596
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,174 sqft · built 1961 |
| Lot Size | 0.276 acres (12,000 sqft) |
| Owner | Company Name on Record |
| Last Sale | $875,000 (May 2004) |
| Tax Bill | $15,681 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 180-270-042-5 |
| Primary APN | 180-270-042-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 13 Rooms |
| Stories | 1 Story |
| Building Area | 2,174 sqft Living Area |
| Gross Area | 2,680 sqft |
| 1st Floor Area | 2,174 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1961 |
|---|---|
| Effective Year Built | Effective 1990 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 12,000 sqft (0.276 acres) |
| Garage Type | Attached |
| Garage Area | 506 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 11 SIMPSON DR |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94596-6717 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R15 |
| Legal Description | TRACT 2781 POR LOT 2 |
| Legal Subdivision | MAP #2 OF WALNUT HEIGHTS |
| Legal Tract | 2781 |
| Legal Lot Number | 2 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 343002 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 11 SIMPSON DR, WALNUT CREEK, CA 94596-6717 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 21, 2004 · Amount on Record |
| Deed Sale | May 21, 2004 · Amount on Record |
| Prior Sale | Dec 16, 1993 |
| Deed Document Number | 2004191536 |
| Last Transfer Date | Dec 10, 2012 |
| Transfer Doc | 0000322026 |
| Record Updated | Sep 20, 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 | $1,357,289 (+2%) Land $797,617 Building $559,672 | |
| 2025 | $15,681.00 (+3.85%) Homeowner's exemption | $1,330,677 (+4.04%) Land $781,978 Building $548,699 |
| 2023 | $15,099.00 (+2.27%) Homeowner's exemption | $1,279,008 Land $751,614 Building $527,394 |
| 2022 | $14,764.00 |
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 | 1 in force |
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 | Moderate above 52% of the US · lower than 69% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 182 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 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Etheric Networks.
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