Tuolumne County property record for 21728 el Oso Way, Sonora, CA 95370
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,586 sqft · built 1980 |
| Lot Size | 0.293 acres (12,756 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $2,631 (2025) |
| Deeds & Mortgages | Mar 2021 Second Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 085-250-022-000 |
| Primary APN | 085-250-022-000 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 3 Rooms |
| Stories | 2 Stories |
| Building Area | 1,586 sqft Living Area |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1980 |
| Construction Type | Wood |
| Lot Area | 12,756 sqft (0.293 acres) |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 085-250-022 |
|---|---|
| Street Address | 21728 EL OSO WAY |
| City | SONORA |
| State | CA |
| Zip | 95370-9654 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R-1,MX |
| Legal Description | PHOENIX LAKE C C ESTATES 3 L290 |
| Legal Subdivision | PHOENIX |
| Legal Lot Number | 290 |
| Jurisdiction | TUOLUMNE CA |
| Township / Civil Division | EAST SONORA-PHOENIX LAKE |
| Census Block Group | 1 |
| Census Block | 1025 |
| Census Tract | 2202 |
21728 el Oso Way is owner-occupied and held in a trust since February 2006.
Source: Tuolumne County records, as of July 7, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 21728 EL OSO WAY, SONORA, CA 95370-9654 |
| 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 | Feb 10, 2006 |
| Transfer Doc | 0000002885 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | TUOLUMNE CA |
| Property Address | 21728 EL OSO WAY, SONORA, CA 95370-9654 |
| Transaction Type | Mortgage |
| Record Updated | May 26, 2021 |
| Title Company | FIRST AMERICAN TITLE, FIRST AMERICAN TITLE INS CO |
| Name | Verified Name |
|---|---|
| Address | 21728 EL OSO WAY, SONORA, CA 95370-9654 |
| Document Number | 0000004449 |
|---|---|
| Date | Mar 19, 2021 |
| Instrument | 2021004449 |
| Name | TECHNOLOGY CU |
|---|---|
| Type | Credit Union |
| Address | SAN JOSE, CA 95131 |
| Type | Stand-Alone Second Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 300 Months |
| Due | Mar 20, 2046 |
The 2025 property tax bill for 21728 el Oso Way was $2,631 with a homeowner's exemption.
Source: Tuolumne County assessment roll, as of July 7, 2026
| Type | Name |
|---|---|
| State | California |
| County | Tuolumne County |
| Elementary School District | Curtis Creek Elementary School District (KG - 08) |
| Secondary School District | Sonora Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $264,109 (+2%) Land $81,152 Building $182,957 | ||
| 2025 | $2,631.00 Homeowner's exemption | $258,931 Land $79,561 Building $179,370 | |
| 2023 | $2,528.00 (+2.06%) Homeowner's exemption | $248,877 Land $76,472 Building $172,405 | $389,160 |
| 2022 | $2,477.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 21728 el Oso Way in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 21, 2022 · 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 |
| Nearby Flood Policies | 2 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 21728 el Oso Way is high, ranking above 88% of the US, with a 0.9% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 88% of the US · above 70% of California |
|---|---|
| Wildfire Likelihood | 0.9% 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 | PHOENIX LAKE ESTATES CC MWC private · serves 1,168 people · EPA ID CA5510026 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jul 2025 |
| 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 | 1 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 121 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Cal.net Fixed Wireless | 100 / 20 |
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