Williamson County property record for 1600 Whirlwind Trl, Round Rock, TX 78664
| Property Type | Single Family Home |
|---|---|
| Details | 2.5 ba · 2,165 sqft · built 1994 |
| Lot Size | 0.179 acres (7,801 sqft) |
| Owner | Company Name on File |
| Last Sale | $116,500 (Sep 2013) |
| Tax Bill | $6,586 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | R-16-3969-000C-0002 |
| Primary APN | R-16-3969-000C-0002 |
|---|---|
| Alternative APNs |
|
| Full Baths | 2.5 Baths |
|---|---|
| Half Baths | 1 Half Bath |
| Stories | 2 Stories |
| Building Area | 2,165 sqft Living Area |
| 1st Floor Area | 880 sqft |
| 2nd Floor Area | 1,285 sqft |
| Flooring | Carpet |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1994 |
|---|---|
| Effective Year Built | Effective 1994 |
| Exterior Material | Brick |
| Roof Type | Hip |
| Lot Area | 7,801 sqft (0.179 acres) |
| Garage Area | 393 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Open Porch |
| Porch Area | 239 sqft |
| Patio Area | 80 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Account Number | R163969000C0002 |
|---|---|
| Street Address | 1600 WHIRLWIND TRL |
| City | ROUND ROCK |
| State | TX |
| Zip | 78664-7052 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | TF |
| Legal Description | GREENLAWN PLACE, BLOCK C, LOT 2 |
| Legal Subdivision | GREENLAWN PLACE |
| Legal Block | C |
| Legal Lot Number | 2 |
| Jurisdiction | WILLIAMSON TX |
| Township / Civil Division | ROUND ROCK-GEORGETOWN |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 20709 |
Source: Williamson County records · APN R-16-3969-000C-0002
Assessment roll updated September 15, 2025 · Last verified April 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 23975 PARK SORRENTO, 300, CALABASAS, CA 91302-4012 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Sep 18, 2013 · Amount on Record |
| Deed Sale | Sep 18, 2013 · Amount on Record |
| Deed Document Number | 201390133 |
| Record Updated | Jun 08, 2026 |
Source: Williamson County records · Assessment roll updated September 15, 2025 · Last verified April 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Williamson County |
| Municipality | Round Rock City |
| Unified School District | Round Rock Independent School District (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $6,586.00 | $363,630 (-8.82%) Land $79,000 Building $284,630 | $363,630 (-8.82%) Land $79,000 Building $284,630 |
| 2024 | $6,586.00 (-5.85%) | ||
| 2023 | $6,995.00 (-15.81%) | $398,811 Land $80,000 Building $318,811 | $398,811 Land $80,000 Building $318,811 |
| 2022 | $8,309.00 |
Source: FEMA National Flood Hazard Layer, Williamson County (48491C), as of October 5, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 484910207092, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
| 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 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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Google Fiber Fiber | 8,000 / 8,000 |
| AT&T Fiber · Fixed Wireless, DSL 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 |
May also be available: Radiate Holdings, SOS Communications, T-Mobile USA.
Based on FCC filings for 295 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System, water system TX2460003, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CITY OF ROUND ROCK serves 130,662 people |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Sep 2023 |
| Lead | 5 ppb (2021–2023) 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 as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.
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