Williamson County property record for 506 Hidden Brook Ln, Round Rock, TX 78665
| Property Type | Single Family Home |
|---|---|
| Details | 2.5 ba · 2,926 sqft · built 2005 |
| Lot Size | 0.277 acres (12,074 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $203,400 (Dec 2005) |
| Tax Bill | $10,230 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | R-16-5661-000A-0020 |
| Primary APN | R-16-5661-000A-0020 |
|---|---|
| Alternative APNs |
|
| Full Baths | 2.5 Baths |
|---|---|
| Half Baths | 1 Half Bath |
| Stories | 2 Stories |
| Building Area | 2,926 sqft Living Area |
| 1st Floor Area | 1,752 sqft |
| 2nd Floor Area | 1,174 sqft |
| Flooring | Tile |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2005 |
|---|---|
| Effective Year Built | Effective 2005 |
| Exterior Material | Brick Veneer |
| Roof Material | Other |
| Lot Area | 12,074 sqft (0.277 acres) |
| Garage Area | 510 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Porch |
|---|---|
| Porch Area | 120 sqft |
| Patio Area | 176 sqft |
| Canopy | 208 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Account Number | R165661000A0020 |
|---|---|
| Street Address | 506 HIDDEN BROOK LN |
| City | ROUND ROCK |
| State | TX |
| Zip | 78665-1449 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | S8725 - TERAVISTA SEC 26B, BLOCK A, LOT 20 |
| Legal Subdivision | TERAVISTA SEC 26B |
| Legal Block | A |
| Legal Lot Number | 20 |
| Jurisdiction | WILLIAMSON TX |
| Township / Civil Division | ROUND ROCK-GEORGETOWN |
| Census Block Group | 4 |
| Census Block | 4000 |
| Census Tract | 21510 |
Source: Williamson County records, as of September 11, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 506 HIDDEN BROOK LN, ROUND ROCK, TX 78665-1449 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 29, 2005 · Amount on File |
| Deed Sale | Dec 29, 2005 · Amount on File |
| Deed Document Number | 2005102823 |
| Prior Transfer Date | Dec 21, 2005 |
| Prior Transfer Doc | 0000102823 |
| Record Updated | Oct 29, 2026 |
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 | $10,230.00 (+44.88%) | $499,417 (-3.89%) Land $108,750 Building $390,667 | $499,417 (-3.89%) Land $108,750 Building $390,667 |
| 2023 | $7,061.00 (-6.38%) Homeowner's exemption | $519,647 Land $115,000 Building $404,647 | $519,647 Land $115,000 Building $404,647 |
| 2022 | $7,542.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective October 5, 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 46% of the US · lower than 80% of Texas |
|---|---|
| Wildfire Likelihood | 0.06% 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 | WILLIAMSON COUNTY MUD 10 serves 3,513 people · EPA ID TX2460145 |
|---|---|
| Water Source | Purchased surface water from CITY OF ROUND ROCK |
| Last State Inspection | Oct 2024 |
| Lead | 2 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 244 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Astound Broadband Cable · Fiber in parts of the area | 1,500 / 50 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: VTX Communications.
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