Contra Costa County property record for 673 Arrowsmith Ct, Walnut Creek, CA 94598 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 1,839 sqft · built 1978 |
| Lot Size | 0.11 acres (4,800 sqft) |
| Owner | Company Name on File |
| Last Sale | $335,000 (Mar 1998) |
| Tax Bill | $6,703 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 135-312-001-5 |
| Primary APN | 135-312-001-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 1,839 sqft Living Area |
| 1st Floor Area | 946 sqft |
| 2nd Floor Area | 893 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1978 |
|---|---|
| Effective Year Built | Effective 1979 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 4,800 sqft (0.11 acres) |
| Garage Type | Attached |
| Garage Area | 459 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 673 ARROWSMITH CT |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94598-4638 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T04844 L0046 B |
| Legal Subdivision | PHEASANT RUN |
| Legal Tract | 04844 |
| Legal Lot Number | 46 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 355302 |
Source: Contra Costa County records · APN 135-312-001-5
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 | Company Name on File |
|---|---|
| Mailing Address | 673 ARROWSMITH CT, WALNUT CREEK, CA 94598-4638 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Mar 19, 1998 · Amount on Record |
| Deed Sale | Mar 19, 1998 · Amount on Record |
| Deed Document Number | 199855809 |
| Last Transfer Date | Dec 18, 2012 |
| Transfer Doc | 0000329736 |
| 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 |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $545,583 (+2%) Land $367,421 Building $178,162 | |
| 2025 | $6,703.00 (+4.26%) Homeowner's exemption | $534,886 (+4.04%) Land $360,217 Building $174,669 |
| 2023 | $6,429.00 (+0.89%) Homeowner's exemption | $514,118 Land $346,230 Building $167,888 |
| 2022 | $6,372.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 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 |
| Wildfire Risk | Moderate above 47% of the US · above 28% of California |
|---|---|
| Wildfire Likelihood | About 1 in 1,136 per year |
| Exposure | Indirect within ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 484 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Radiate Holdings | Cable | 1,500 / 50 |
| Unwired | Fixed Wireless | 300 / 25 |
| Verizon | Fixed Wireless | 300 / 20 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: T-Mobile USA, Sonic Telecom. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G (outdoors only) and 4G LTE
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