Contra Costa County property record for 770 Thomas Ln, Walnut Creek, CA 94597
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,151 sqft · built 1983 |
| Lot Size | 0.188 acres (8,189 sqft) |
| Owner | 2 Individuals on Record |
| Last Sale | $685,000 (Apr 2014) |
| Tax Bill | $12,238 (2025) |
| Deeds & Mortgages | Apr 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 171-160-048-4 |
| Primary APN | 171-160-048-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,151 sqft Living Area |
| 1st Floor Area | 2,151 sqft |
| Year Built | Built 1983 |
|---|---|
| Effective Year Built | Effective 2015 |
| Lot Area | 8,189 sqft (0.188 acres) |
| Garage Type | Attached |
| Garage Area | 500 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 770 THOMAS LN |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94597-2566 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | 95 PM 48 POR PCL B |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3009 |
| Census Tract | 340001 |
Source: Contra Costa County assessment roll, 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 Individuals on Record |
|---|---|
| Mailing Address | 770 THOMAS LN, WALNUT CREEK, CA 94597-2566 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 17, 2014 · Amount on Record |
| Deed Sale | Apr 17, 2014 · Amount on Record |
| Prior Sale | Jun 17, 2004 · Amount on Record |
| Deed Document Number | 201459014 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 770 THOMAS LN, WALNUT CREEK, CA 94597-2566 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | FIRST AMER TTL CO RES DIV |
| Name | Verified Name |
|---|
| Document Number | 0000068560 |
|---|---|
| Date | Apr 10, 2020 |
| Instrument | 2020-068560 |
| Name | PROSPERITY HOME MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Address | CHANTILLY, VA 20151 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 181 Months |
| Due | May 1, 2035 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Walnut Creek City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,050,298 (+2%) Land $556,414 Building $493,884 | |
| 2025 | $12,238.00 (+25.56%) | $1,029,704 (+27.58%) Land $545,504 Building $484,200 |
| 2023 | $9,747.00 (+0.88%) | $807,099 Land $524,322 Building $282,777 |
| 2022 | $9,662.00 |
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 |
| Nearby Flood Claims | 2 (1980–1998) |
| Claims Outside the SFHA | 1 of 2 |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.8% of the US · lower than 99.8% of California |
|---|---|
| Wildfire Likelihood | Under 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 490 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: T-Mobile.
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