Sonoma County property record for 54 William St, Cotati, CA 94931 · Last verified April 2026
| Property Type | Vacant Land > Commercial |
|---|---|
| Lot Size | 6,750 sqft (0.155 acres) |
| Last Sale | $1,555,000 (2015) |
| Tax Bill | $2,314.00 (2025) |
| Primary APN | 144-261-003-000 |
|---|---|
| Alternative APN |
|
| Lot Area | 6,750 sqft (0.155 acres) |
|---|
| Cooling System | None Cooling |
|---|
| Old Parcel Number | 144-261-003 |
|---|---|
| Street Address | 54 WILLIAM ST |
| City | COTATI |
| State | CA |
| Zip | 94931-4236 |
| Property Usage | Commercial Property Usage |
| Type | Vacant Land > Commercial |
| Legal Subdivision | SUBDIVISION #6 OF THE COTATI RANCHO |
| Legal Block | 3 |
| Legal Lot Number | 10-14 |
| Jurisdiction | SONOMA CA |
| Minor Civil Division | PETALUMA |
| Census Blockgroup | 3 |
| Census Block | 3006 |
| Census Tract | 151204 |
Source: Sonoma County records · APN 144-261-003-000
Assessment roll updated April 13, 2026 · Last verified April 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 | 82 DEL ORO LAGOON, NOVATO, CA 94949-5321 |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Trust |
| Date | Document |
|---|---|
| Dec 27, 2017 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Dec 27, 2017 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jun 03, 2015 · Amount on Record |
| Deed Sale | Jun 03, 2015 · Amount on Record |
| Prior Sale | Jun 09, 2008 |
| Deed Doc Number | 201548262 |
| Last Transfer Date | Dec 20, 2017 |
| Transfer Doc | 0000100330 |
| Record Refreshed | Jun 08, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Dec 27, 2017 |
| Property Address | 54 WILLIAM ST, COTATI, CA 94931-4236 |
| Document Number | 0000100330 |
| Instrument Date | Dec 20, 2017 |
| Instrument | 100330 |
| Transaction Type | Transfer |
| Record Updated | Jan 23, 2018 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 82 DEL ORO LAGOON NOVATO CA 949495321, NOVATO, CA 94949-5321 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Dec 27, 2017 |
| Property Address | 54 WILLIAM ST, COTATI, CA 94931-4236 |
| Document Number | 0000100333 |
| Instrument Date | Dec 20, 2017 |
| Instrument | 100333 |
| Transaction Type | Transfer |
| Record Updated | Jan 23, 2018 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 54 WILLIAM ST COTATI CA 94931, COTATI, CA 94931 |
Source: Sonoma County records · Assessment roll updated April 13, 2026 · Last verified April 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Cotati City |
| Unified School District | Cotati-Rohnert Park Unified School District (KG - 12) |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $2,314.00 (+3.21%) | $162,242 (+4.04%) Land $162,242 |
| 2023 | $2,242.00 (+1.82%) | $155,943 Land $155,943 |
| 2022 | $2,202.00 |
54 William St is in FEMA Zone X, outside the Special Flood Hazard Area, with no wildfire exposure.
Source: FEMA National Flood Hazard Layer · Sonoma County (06097C), updated February 15, 2026
| FEMA Flood Zone | Zone X minimal flood hazard · outside the 0.2% annual chance floodplain |
|---|---|
| Special Flood Hazard Area | No |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk to Homes | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach of burnable land |
Values are read at the parcel center point; lenders make the official flood determination.
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