Contra Costa County property record for 20 Simpson Dr, Walnut Creek, CA 94596
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,806 sqft · built 1962 |
| Lot Size | 0.303 acres (13,200 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $2,221,500 (Feb 2018) |
| Tax Bill | $15,054 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 180-270-024-3 |
| Primary APN | 180-270-024-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,806 sqft Living Area |
| 1st Floor Area | 1,806 sqft |
| Year Built | Built 1962 |
|---|---|
| Effective Year Built | Effective 1975 |
| Lot Area | 13,200 sqft (0.303 acres) |
| Garage Type | Attached |
| Garage Area | 483 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 20 SIMPSON DR |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94596-6715 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R115 |
| Legal Description | TRACT 2781 LOT 12 |
| Legal Subdivision | MAP #2 OF WALNUT HEIGHTS |
| Legal Tract | 2781 |
| Legal Lot Number | 12 |
| 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 | 2 Company Names on Record |
|---|---|
| Mailing Address | 20 SIMPSON DR, WALNUT CREEK, CA 94596-6715 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 20, 2018 · Amount on Record |
| Deed Sale | Feb 20, 2018 · Amount on Record |
| Prior Sale | Oct 14, 2016 · Amount on Record |
| Deed Document Number | 201826206 |
| Prior Transfer Date | Dec 2, 2014 |
| Prior Transfer Doc | 0000217195 |
| 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 | $1,291,657 (+2%) Land $836,341 Building $455,316 | |
| 2025 | $15,054.00 (+3.84%) | $1,266,332 (+4.04%) Land $819,943 Building $446,389 |
| 2023 | $14,498.00 (+2.26%) | $1,217,160 Land $788,104 Building $429,056 |
| 2022 | $14,178.00 |
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 53% of the US · lower than 68% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Direct burnable vegetation |
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.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures