Williamson County property record for 16315 Hillside Dr, Austin, TX 78728
| Property Type | Residential Vacant Land |
|---|---|
| Lot Size | 0.295 acres (12,841 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $1,007 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | R-16-4720-0005-0017 |
| Primary APN | R-16-4720-0005-0017 |
|---|---|
| Alternative APNs |
|
| Lot Area | 12,841 sqft (0.295 acres) |
|---|
| Account Number | R16472000050017 |
|---|---|
| Street Address | 16315 HILLSIDE DR |
| City | AUSTIN |
| State | TX |
| Zip | 78728-1221 |
| Property Category | Residential |
| Property Type | Vacant Land > Residential |
| Legal Description | S5785 - NORTHRIDGE ACRES REVISED, BLOCK 5, LOT 17 |
| Legal Subdivision | NORTHRIDGE ACRES REVISED |
| Legal Block | 5 |
| Legal Lot Number | 17 |
| Jurisdiction | WILLIAMSON TX |
| Township / Civil Division | ROUND ROCK-GEORGETOWN |
| Census Block Group | 2 |
| Census Block | 2023 |
| Census Tract | 20513 |
16315 Hillside Dr, residential vacant land, is owned by two individuals who acquired it in April 2010.
Source: Williamson County records, as of September 11, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4306 NORTHRIDGE RD, AUSTIN, TX 78728-1129 |
| 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 | 2 Names on Deed |
|---|---|
| Last Sale | Apr 20, 2010 |
| Deed Sale | Apr 20, 2010 |
| Deed Document Number | 201024987 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 16315 Hillside Dr was $1,007.
Source: Williamson County assessment roll, as of September 11, 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Williamson County |
| Unified School District | Round Rock Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $1,007.00 | $74,000 Land $74,000 | $74,000 Land $74,000 |
| 2023 | $828.00 (-8.71%) | $55,000 Land $55,000 | $55,000 Land $55,000 |
| 2022 | $907.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 16315 Hillside Dr in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 5, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 16315 Hillside Dr is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.3% of Texas |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
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 AUSTIN WATER & WASTEWATER serves 1,115,323 people · EPA ID TX2270001 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jul 2023 |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| Water Quality | Turbidity resolved · Feb 2022 |
|---|---|
| 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 413 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Google Fiber Fiber | 8,000 / 8,000 |
| AT&T Fiber · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Astound Broadband, Western Broadband.
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