Bexar County property record for 21806 Thunder Basin, San Antonio, TX 78261
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,559 sqft · built 2006 |
| Lot Size | 0.142 acres (6,190 sqft) |
| Owner | Individual Name on File |
| Last Sale | $172,000 (Nov 2006) |
| Tax Bill | $3,207 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 04913-107-0160 |
| Primary APN | 04913-107-0160 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Stories | 1 Story |
| Building Area | 1,559 sqft Living Area |
| Gross Area | 1,935 sqft |
| 1st Floor Area | 1,559 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2006 |
|---|---|
| Effective Year Built | Effective 2006 |
| Architectural Style | Contemporary |
| Exterior Material | Other |
| Roof Material | Asphalt |
| Lot Area | 6,190 sqft (0.142 acres) |
| Garage Type | Attached |
| Garage Area | 376 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Open Porch |
| Porch Area | 216 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Street Address | 21806 THUNDER BASIN |
|---|---|
| City | SAN ANTONIO |
| State | TX |
| Zip | 78261-2559 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | CB 4913A BLK 7 LOT 16 WORTHAM OAKS UT-2 PUD PLAT 9567/118-120; AMENDING PLAT 9572/135-137 |
| Legal Subdivision | WORTHAM OAKS SUB CB 4917 UN 2 |
| Legal Tract | 16 |
| Legal Block | 7 |
| Legal Lot Number | 16 |
| Jurisdiction | BEXAR TX |
| Township / Civil Division | SAN ANTONIO NORTH |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 121912 |
21806 Thunder Basin is owned and occupied by an individual who bought it in November 2006.
Source: Bexar County records, as of May 26, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 21806 THUNDER BASIN, SAN ANTONIO, TX 78261-2559 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 | Nov 16, 2006 · Amount on File |
| Deed Sale | Nov 16, 2006 · Amount on File |
| Prior Sale | Jul 10, 2006 |
| Deed Document Number | 2006278369 |
| Deed Book / Page | 12521 / 2039 |
| Prior Transfer Date | Nov 15, 2006 |
| Prior Transfer Doc | 0000278369 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 21806 Thunder Basin was $3,207 with a homeowner's exemption, down 13.9% from the year before.
Source: Bexar County assessment roll, as of May 26, 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Bexar County |
| Unified School District | Judson Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $3,207.00 (-13.91%) Homeowner's exemption | $272,990 Land $80,350 Building $192,640 | $272,990 Land $80,350 Building $192,640 |
| 2024 | $3,725.00 (+8.57%) | ||
| 2023 | $3,431.00 (-15.22%) Homeowner's exemption | $288,900 Land $80,350 Building $208,550 | $288,900 Land $80,350 Building $208,550 |
| 2022 | $4,047.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 21806 Thunder Basin in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 12, 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 |
| Nearby Flood Policies | 6 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 21806 Thunder Basin is low, with a 0.05% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 63% of the US · lower than 88% of Texas |
|---|---|
| Wildfire Likelihood | 0.05% 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 | SAN ANTONIO WATER SYSTEM serves 2,643,729 people · EPA ID TX0150018 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Aug 2023 |
| Lead | 2 ppb (2022–2024) 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 226 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
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