Contra Costa County property record for 1457 Sos Dr, Walnut Creek, CA 94597
| Property Type | Commercial Office |
|---|---|
| Details | 1,854 sqft · built 1950 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | Individual Name on File |
| Last Sale | $400,000 (Feb 2013) |
| Tax Bill | $6,517 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 171-202-002-1 |
| Primary APN | 171-202-002-1 |
|---|---|
| Alternative APN |
|
| Total Rooms | 1 Room |
|---|---|
| Stories | 1 Story |
| Building Area | 1,854 sqft Gross Area |
| 1st Floor Area | 1,854 sqft |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 1954 |
| Lot Area | 5,000 sqft (0.115 acres) |
| Street Address | 1457 SOS DR |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94597-3124 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Legal Description | WHITTON SUBDIVISION POR LOTS 17 & 18 |
| Legal Subdivision | WHITTON SUB |
| Legal Lot Number | 17,18 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 4 |
| Census Block | 4001 |
| Census Tract | 340001 |
1457 Sos Dr, a commercial property, is owned by an individual who bought it in February 2013.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | PO BOX 1166, ALAMO, CA 94507-7166 |
| 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 | Feb 26, 2013 · Amount on File |
| Deed Sale | Feb 26, 2013 · Amount on File |
| Deed Document Number | 201348749 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 1457 Sos Dr was $6,517.
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 | $502,410 (+2%) Land $314,009 Building $188,401 | |
| 2025 | $6,517.00 | $492,559 Land $307,852 Building $184,707 |
| 2023 | $6,288.00 (+1.45%) | $473,435 Land $295,899 Building $177,536 |
| 2022 | $6,198.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1457 Sos Dr in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 1982.
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 |
| Nearby Flood Claims | 2 (1982–1986) |
| Most Recent Claim | Feb 1986 · Severe Storms & Flooding |
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.
The area around 1457 Sos Dr has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land 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 535 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: Sonic Telecom.
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