Sonoma County property record for 16387 First St, Guerneville, CA 95446
| Property Type | Medical Building |
|---|---|
| Details | 2,190 sqft · built 1968 |
| Lot Size | 1.87 acres (81,892 sqft) |
| Owner | Company Name on File |
| Last Sale | $704,000 (Aug 2016) |
| Tax Bill | $7,616 (2025) |
| Deeds & Mortgages | Oct 2020 Mortgage |
| Flood Zone | Zone AE (high risk) |
| APN | 070-040-057-000 |
| Primary APN | 070-040-057-000 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 2,190 sqft Gross Area |
| 1st Floor Area | 2,190 sqft |
| Year Built | Built 1968 |
|---|---|
| Effective Year Built | Effective 2022 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Fire Resistance | Wood or Wood & Steel Frame |
| Lot Area | 81,892 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Central |
| Old Parcel Number | 070-040-057 |
|---|---|
| Street Address | 16387 FIRST ST |
| City | GUERNEVILLE |
| State | CA |
| Zip | 95446-8817 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Medical Building |
| Legal Description | 93 FM 70-040-28 CW 29 VM 92104739 LOTS 1 & 2 |
| Legal Subdivision | GURNEVILLE |
| Legal Block | 2 |
| Legal Lot Number | 1,2 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | RUSSIAN RIVER-SONOMA COAST |
| Census Block Group | 2 |
| Census Block | 2018 |
| Census Tract | 153709 |
16387 First St, a commercial property, is owned by a company that bought it in August 2016 and is owner-occupied.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | PO BOX 1449, GUERNEVILLE, CA 95446-1449 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Company |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 18, 2016 · Amount on File |
| Deed Sale | Aug 18, 2016 · Amount on File |
| Prior Sale | Oct 30, 1998 · Amount on File |
| Deed Document Number | 201671084 |
| Prior Transfer Date | Aug 19, 2009 |
| Prior Transfer Doc | 0000082515 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 16387 1ST ST, GUERNEVILLE, CA 95446 |
| Transaction Type | Mortgage |
| Record Updated | Jul 26, 2022 |
| Title Company | FIRST AMERICAN TITLE |
| Name | Verified Name |
|---|---|
| Address | 14045 MILL ST, GUERNEVILLE, CA 95446-8303 |
| Document Number | 0000093290 |
|---|---|
| Date | Oct 14, 2020 |
| Instrument | 2020093290 |
| Name | CALIFORNIA MUNICIPAL FINANCE AUTHORITY |
|---|---|
| Type | Government Agency |
| Address | CARLSBAD, CA 92011 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount on Record |
The 2025 property tax bill for 16387 First St was $7,616 with an additional exemption.
Source: Sonoma County assessment roll, as of September 1, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Secondary School District | West Sonoma County Union High School District (09 - 12) |
| Elementary School District | Guerneville Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $5,084,039 (+1.93%) Land $804,139 Building $4,279,900 | |
| 2025 | $7,616.00 Veteran's exemption | $4,987,588 Land $788,372 Building $4,199,216 |
| 2023 | $29,010.00 (+6.31%) | $785,322 Land $557,759 Building $227,563 |
| 2022 | $27,288.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 16387 First St in Zone AE, a high-risk flood area within the regulatory floodway; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective February 15, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | Yes |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on File median of 87 policies |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 87 in force |
| Nearby Flood Claims | 131 (2001–2026) |
| Claims Outside the SFHA | 4 of 131 |
| Most Recent Claim | Jan 2026 · river or lake flooding |
| Claims by Event |
|
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 16387 First St 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 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.03% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 | SWEETWATER SPRINGS CWD - GUERNEVILLE serves 5,156 people · EPA ID CA4910004 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jun 2022 |
| Lead | Under 1 ppb (2023–2025) 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 210 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 1,200 / 35 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: AT&T.
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