Contra Costa County property record for 877 Ygnacio Valley Rd, Walnut Creek, CA 94596
| Property Type | Commercial Office |
|---|---|
| Details | 17,936 sqft · built 1985 |
| Lot Size | 0.95 acres (41,382 sqft) |
| Owner | Company Name on Record |
| Last Sale | $36,000 (Mar 2000) |
| Tax Bill | $45,385 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 178-390-050-7 |
| Primary APN | 178-390-050-7 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 17,936 sqft Gross Area |
| 1st Floor Area | 17,936 sqft |
| Year Built | Built 1985 |
|---|---|
| Effective Year Built | Effective 1987 |
| Lot Area | 41,382 sqft (0.95 acres) |
| View / Lot | Creek |
| Street Address | 877 YGNACIO VALLEY RD |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94596-3878 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Legal Description | POR RO LAS JUNTAS & TR ADJ |
| Legal Subdivision | CONTRA COSTA COUNTY LAND CO |
| Legal Lot Number | 1 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3003 |
| 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 | Company Name on Record |
|---|---|
| Mailing Address | 404 OAKSHIRE PL, ALAMO, CA 94507-2330 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Mar 17, 2000 · Amount on Record |
| Deed Sale | Mar 17, 2000 · Amount on Record |
| Prior Sale | Jul 20, 1999 · Amount on Record |
| Deed Document Number | 200053454 |
| Prior Transfer Date | Jul 14, 1999 |
| Prior Transfer Doc | 0000191046 |
| 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 | $4,003,000 (-) Land $1,436,900 Building $2,566,100 | |
| 2025 | $45,385.00 (-21.14%) | $4,003,000 (-21.86%) Land $1,436,900 Building $2,566,100 |
| 2023 | $57,548.00 (+2.28%) | $5,122,719 Land $1,838,922 Building $3,283,797 |
| 2022 | $56,263.00 |
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone A, within 100 ft |
| 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 | 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 397 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 |
| 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, Sonic Telecom, Verizon.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures