Sonoma County property record for 531 Mercantile Dr, #A, Cotati, CA 94931
| Property Type | Warehouse, Storage |
|---|---|
| Details | 19,056 sqft · built 1994 |
| Lot Size | 1.05 acres (46,173 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $2,263,500 (Dec 2014) |
| Tax Bill | $31,545 (2025) |
| Deeds & Mortgages | Nov 2018 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 144-010-045-000 |
| Primary APN | 144-010-045-000 |
|---|---|
| Alternative APN |
|
| Stories | 2 Stories |
|---|---|
| Building Area | 19,056 sqft Gross Area |
| Year Built | Built 1994 |
|---|---|
| Effective Year Built | Effective 1994 |
| Fire Resistance | Masonry Walls, Wood Interior |
| Lot Area | 46,173 sqft |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 144-010-045 |
|---|---|
| Street Address | 531 MERCANTILE DR, A |
| City | COTATI |
| State | CA |
| Zip | 94931-3040 |
| Property Category | Industrial |
| Property Type | Industrial > Warehouse, Storage |
| Local Zoning Code | M1 |
| Legal Description | 80 FM 144-010-14 NOW RC INDUSTRIAL SUB #2, LOT 16 |
| Legal Subdivision | NOW RC INDUSTRIAL SUB |
| Legal Block | 3 |
| Legal Lot Number | 16 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | PETALUMA |
| Census Block Group | 3 |
| Census Block | 3002 |
| Census Tract | 151206 |
531 Mercantile Dr, #A is held in a trust since February 2025.
Source: Sonoma County records, as of October 1, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 71 CENTER RD, PETALUMA, CA 94952-1028 |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 19, 2014 · Amount on File |
| Deed Sale | Dec 19, 2014 · Amount on File |
| Prior Sale | Aug 31, 2007 · Amount on File |
| Deed Document Number | 201491086 |
| Last Transfer Date | Feb 21, 2025 |
| Transfer Doc | 0000008077 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 531 MERCANTILE DR # A, A, COTATI, CA 94931-3040 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000079926 |
|---|---|
| Date | Nov 20, 2018 |
| Instrument | 2018079926 |
| Name | MUFG UNION BANK NA |
|---|---|
| Type | Bank |
| Address | IRVINE, CA 92612 |
| Type | SBA Mortgage |
|---|---|
| Amount | Amount on Record |
The 2025 property tax bill for 531 Mercantile Dr, #A was $31,545.
Source: Sonoma County assessment roll, as of September 1, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Cotati City |
| Unified School District | Cotati-Rohnert Park Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $2,778,329 (+1.99%) Land $1,241,816 Building $1,536,513 | |
| 2025 | $31,545.00 | $2,724,209 Land $1,217,467 Building $1,506,742 |
| 2023 | $30,653.00 (+1.74%) | $2,617,946 Land $1,170,193 Building $1,447,753 |
| 2022 | $30,130.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 531 Mercantile Dr, #A in Zone X, an area of minimal flood risk, within 100 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective February 15, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 5 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 531 Mercantile Dr, #A is low, with a 0.07% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 62% of the US · lower than 77% of California |
|---|---|
| Wildfire Likelihood | 0.07% annual chance |
| Exposure | Direct burnable vegetation |
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 | CITY OF COTATI serves 7,290 people · EPA ID CA4910016 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Aug 2024 |
| Lead | Under 1 ppb (2024–2026) 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.
Source: FCC Broadband Data Collection, based on 220 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
May also be available: AT&T, Verizon.
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