Contra Costa County property record for 12 Oak Knoll Loop, Walnut Creek, CA 94596 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 2,577 sqft · built 1955 |
| Lot Size | 0.54 acres (23,522 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $9,438 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 180-060-005-6 |
| Primary APN | 180-060-005-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 2,577 sqft Living Area |
| 1st Floor Area | 2,577 sqft |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1985 |
| Lot Area | 23,522 sqft (0.54 acres) |
| Garage Type | Attached |
| Garage Area | 594 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 12 OAK KNOLL LOOP |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94596-5417 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | WALNUT HEIGHTS POR LOT 1 BLK 7 |
| Legal Subdivision | WALNUT HEIGHTS MAP 02 |
| Legal Block | 7 |
| Legal Lot Number | 1 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 4 |
| Census Block | 4001 |
| Census Tract | 343001 |
Source: Contra Costa County records · APN 180-060-005-6
Assessment roll updated July 14, 2026 · Last verified July 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 File |
|---|---|
| Mailing Address | 12 OAK KNOLL LOOP, WALNUT CREEK, CA 94596-5417 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Jul 15, 2008 |
| Transfer Doc | 0000162775 |
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 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) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $765,642 (+2%) Land $330,512 Building $435,130 | |
| 2025 | $9,438.00 (+3.89%) | $750,631 (+4.04%) Land $324,032 Building $426,599 |
| 2023 | $9,085.00 (+2.16%) | $721,485 Land $311,450 Building $410,035 |
| 2022 | $8,893.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133430014, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | Low above 34% of the US · above 20% of California |
|---|---|
| Wildfire Likelihood | About 1 in 2,703 per year |
| Exposure | Direct burnable vegetation at the parcel |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 304 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Sonic Telecom | Fiber | 10,000 / 10,000 |
| Xfinity | Cable | 2,000 / 250 |
| Radiate Holdings | Cable | 1,500 / 50 |
| Unwired | Fixed Wireless | 300 / 25 |
| Verizon | Fixed Wireless | 300 / 20 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: Etheric Communications, LLC., AT&T. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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