Contra Costa County property record for 310 Las Lomas Way, Walnut Creek, CA 94598
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 2,245 sqft · built 1965 |
| Lot Size | 0.23 acres (10,010 sqft) |
| Owner | Trust Name on File |
| Last Sale | $1,250,000 (Apr 2018) |
| Tax Bill | $16,565 (2025) |
| Deeds & Mortgages | Jun 2021 Mortgage Apr 2022 Line of Credit + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 139-024-010-7 |
| Primary APN | 139-024-010-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 2,245 sqft Living Area |
| 1st Floor Area | 1,258 sqft |
| 2nd Floor Area | 987 sqft |
| Year Built | Built 1965 |
|---|---|
| Effective Year Built | Effective 1980 |
| Lot Area | 10,010 sqft (0.23 acres) |
| Garage Type | Attached |
| Garage Area | 481 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 310 LAS LOMAS WAY |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94598-4227 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10 |
| Legal Description | TRACT 3339 LOT 56 EX POR MR |
| Legal Subdivision | SUBDIVISION 3339 |
| Legal Tract | 3339 |
| Legal Lot Number | 56 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1023 |
| Census Tract | 338302 |
310 Las Lomas Way is held in a trust since November 2021.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 310 LAS LOMAS WAY, WALNUT CREEK, CA 94598-4227 |
| Owner Type | Company |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Jun 8, 2021 | Deed of Trust, Mortgage · Conventional Mortgage ALLIANT CU |
| Apr 19, 2022 | Deed of Trust, Mortgage · Line of Credit US BANK NA |
| Nov 17, 2021 | Intrafamily Transfer, Transfer |
| Apr 2, 2018 | Grant Deed, Transfer WFB NA |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Apr 2, 2018 · Amount on File |
| Deed Sale | Apr 2, 2018 · Amount on File |
| Deed Document Number | 201850400 |
| Last Transfer Date | Nov 6, 2021 |
| Transfer Doc | 0000318024 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 310 LAS LOMAS WAY, WALNUT CREEK, CA 94598-4227 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | FIDELITY NATIONAL TITLE INS |
| Name | Verified Name |
|---|---|
| Address | 310 LAS LOMAS WAY, WALNUT CREEK, CA 94598-4227 |
| Document Number | 0000165794 |
|---|---|
| Date | Jun 8, 2021 |
| Instrument | 2021-165794 |
| Name | ALLIANT CU |
|---|---|
| Type | Credit Union |
| Address | CHICAGO, IL 60666 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 178 Months |
| Due | Apr 1, 2036 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 310 LAS LOMAS WAY, WALNUT CREEK, CA 94598-4227 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | RADIAN SETTLEMENT SERVICES |
| Name | Verified Name |
|---|---|
| Address | 310 LAS LOMAS WAY, WALNUT CREEK, CA 94598-4227 |
| Document Number | 0000067250 |
|---|---|
| Date | Apr 19, 2022 |
| Instrument | 2022-067250 |
| Name | US BANK NA |
|---|---|
| Type | Bank |
| Address | LA JOLLA, CA 92037 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Nov 17, 2021 |
| Property Address | 310 LAS LOMAS WAY, WALNUT CREEK, CA 94598-4227 |
| Document Number | 0000318024 |
| Map Reference | MB 100 PG 13 |
| Instrument Date | Nov 6, 2021 |
| Instrument | 2021-318024 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 310 LAS LOMAS WAY, WALNUT CREEK, CA 94598-4227 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 2, 2018 |
| Property Address | 310 LAS LOMAS WAY, WALNUT CREEK, CA 94598-4227 |
| Document Number | 0000050400 |
| Instrument Date | Mar 20, 2018 |
| Instrument | 50400 |
| Transaction Type | Transfer |
| Record Updated | Apr 9, 2018 |
| Title Company | PLACER TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,375.00 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 310 LAS LOMAS WAY WALNUT CREEK CA 945984227, WALNUT CREEK, CA 94598-4227 |
| Document Number | 50401 |
|---|---|
| Date | Apr 2, 2018 |
| Instrument | 50401 |
| Name | WFB NA |
|---|---|
| Type | Bank |
| Address | 101 N PHILLIPS AVE, SIOUX FALLS, SD 57104-6738 |
| Amount | Amount on Record |
|---|---|
| Term | 360 Months |
| Due | Apr 1, 2048 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 3.87% |
The 2025 property tax bill for 310 Las Lomas Way was $16,565.
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 | $1,450,726 (+2%) Land $1,102,553 Building $348,173 | |
| 2025 | $16,565.00 | $1,422,282 Land $1,080,935 Building $341,347 |
| 2023 | $15,933.00 (+0.88%) | $1,367,055 Land $1,038,962 Building $328,093 |
| 2022 | $15,794.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 310 Las Lomas Way in Zone X, an area of minimal flood risk.
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.
Wildfire risk around 310 Las Lomas Way is low, with a 0.03% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 66% of the US · lower than 80% of California |
|---|---|
| Wildfire Likelihood | 0.03% annual chance |
| Exposure | Indirect 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 358 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 |
May also be available: AT&T, Etheric Networks, T-Mobile, Verizon.
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