Contra Costa County property record for 961 Dewing Ave, Lafayette, CA 94549 · Last verified August 2026
| Property Type | Medical Building |
|---|---|
| Details | 2,475 sqft · built 1969 |
| Lot Size | 0.13 acres (5,662 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $9,809 (2025) |
| Deeds & Mortgages | Dec 2022 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 243-110-031-8 |
| Primary APN | 243-110-031-8 |
|---|---|
| Alternative APN |
|
| Total Rooms | 1 Room |
|---|---|
| Stories | 1 Story |
| Building Area | 2,475 sqft Gross Area |
| 1st Floor Area | 2,475 sqft |
| Year Built | Built 1969 |
|---|---|
| Effective Year Built | Effective 1969 |
| Lot Area | 5,662 sqft (0.13 acres) |
| Street Address | 961 DEWING AVE, 963 |
|---|---|
| City | LAFAYETTE |
| State | CA |
| Zip | 94549-4252 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Medical Building |
| Legal Description | POR RO ACALANES |
| Legal Subdivision | ACALANES RHO |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1004 |
| Census Tract | 350000 |
Source: Contra Costa County records · APN 243-110-031-8
Assessment roll updated July 14, 2026 · Last verified August 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 | 959 DEWING AVE, LAFAYETTE, CA 94549-4252 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Dec 16, 2022 |
| Transfer Doc | 0000185946 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 20, 2022 |
| Property Address | 961 DEWING AVE, LAFAYETTE, CA 94549-4252 |
| Document Number | 0000185946 |
| Instrument Date | Dec 16, 2022 |
| Instrument | 2022-185946 |
| Transaction Type | Transfer |
| Record Updated | Dec 19, 2025 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 961 DEWING AVE # 963, 963, LAFAYETTE, CA 94549-4252 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Lafayette City |
| Secondary School District | Acalanes Union High School District (09 - 12) |
| Elementary School District | Lafayette 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 | $667,011 (+2%) Land $460,455 Building $206,556 | |
| 2025 | $9,809.00 (-32.47%) | $653,933 (-38.94%) Land $451,427 Building $202,506 |
| 2023 | $14,526.00 (+3.18%) | $1,071,000 (+487.04%) Land $816,000 Building $255,000 |
| 2022 | $14,078.00 | $182,441 Land $50,785 Building $131,656 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133500001, 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 |
| Nearest Special Flood Hazard Area | Zone AO, within 500 ft |
| Flood Insurance Cost | Premium on Record median of 25 individual NFIP policies nearby |
| Nearby Flood Policies | 63 units insured 38 under condo master policies |
| Nearby Flood Claims | 9 (1987–2001) |
| Claims Outside the SFHA | 1 of 9 |
| Most Recent Claim | Dec 2001, rainfall accumulation |
| Claims By Storm |
|
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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 291 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| AT&T | Fiber | 5,000 / 5,000 |
| Xfinity | Cable | 2,000 / 250 |
| 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, Etheric Communications, LLC., AT&T. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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