Sonoma County property record for 21554 Duncan Rd, Monte Rio, CA 95462
| Property Type | Single Family Home |
|---|---|
| Details | 1 bd · 1 ba · 1,096 sqft · built 1940 |
| Lot Size | 4.36 acres (190,357 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $1,275 (2025) |
| Deeds & Mortgages | Aug 2018 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 094-052-001-000 |
| Primary APN | 094-052-001-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 1 Bed |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 3 Rooms |
| Stories | 1 Story |
| Building Area | 1,096 sqft Living Area |
| 1st Floor Area | 1,096 sqft |
| Basement Area | 320 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1940 |
|---|---|
| Effective Year Built | Effective 1945 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 190,357 sqft |
| Garage Type | Carport |
| Garage Area | 198 sqft |
| Carport | Carport |
| Carport Area | 198 sqft |
| Cooling System | None |
|---|
| Old Parcel Number | 094-052-001 |
|---|---|
| Street Address | 21554 DUNCAN RD |
| City | MONTE RIO |
| State | CA |
| Zip | 95462-9768 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RRD160 |
| Legal Description | UNINCORP COUNTY CA |
| Legal Subdivision | MONTE CRISTO 01 |
| Legal Block | 2 |
| Legal Lot Number | 139 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | RUSSIAN RIVER-SONOMA COAST |
| Census Block Group | 2 |
| Census Block | 2012 |
| Census Tract | 153707 |
21554 Duncan Rd is owner-occupied and held in a trust since May 2001.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 19420 HIGHWAY 116, 364, MONTE RIO, CA 95462-1021 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
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 Transfer Date | May 3, 2001 |
| Transfer Doc | 0000055911 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 21554 DUNCAN RD, MONTE RIO, CA 95462 |
| Document Number | 0000055859 |
| Instrument Date | Aug 2, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Nov 21, 2018 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO |
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | PO BOX 364 MONTE RIO CA 954620364, MONTE RIO, CA 95462-0364 |
| Document Number | 0000055859 |
|---|---|
| Date | Aug 7, 2018 |
| Instrument | 55859 |
| Name | COMMUNITY FIRST FCU |
|---|---|
| Address | SANTA ROSA, CA 95406 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Rate Type | Adjustable Rate |
|---|
The 2025 property tax bill for 21554 Duncan Rd was $1,275 with a homeowner's 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 | Monte Rio Union Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $70,451 (+2%) Land $3,985 Building $66,466 | |
| 2025 | $1,275.00 Homeowner's exemption | $69,070 Land $3,907 Building $65,163 |
| 2023 | $454.00 (+48.37%) Veteran's exemption Widower's exemption | $82,972 Land $3,756 Building $79,216 |
| 2022 | $306.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 21554 Duncan Rd in Zone X, an area of minimal flood risk, though there have been 13 flood claims nearby since 1995.
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 30 policies |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 30 in force |
| Nearby Flood Claims | 13 (1995–2025) |
| Most Recent Claim | Feb 2025 · 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 21554 Duncan Rd is moderate, ranking above 48% of the US, with a 0.07% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 48% of the US · lower than 71% 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 | SWEETWATER SPRINGS CWD - MONTE RIO serves 3,531 people · EPA ID CA4910028 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Oct 2021 |
| 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 49 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 1,200 / 35 |
5G and 4G LTE (outdoors only)
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