Williamson County property record for 4017 Castle Crk, Round Rock, TX 78681
| Property Type | Single Family Home |
|---|---|
| Details | 2.5 ba · 3,698 sqft · built 2000 |
| Lot Size | 0.203 acres (8,825 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $313,400 (Dec 2016) |
| Tax Bill | $9,920 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | R17W349903BD010 |
| Primary APN | R17W349903BD010 |
|---|---|
| Alternative APNs |
|
| Full Baths | 2.5 Baths |
|---|---|
| Half Baths | 1 Half Bath |
| Stories | 2 Stories |
| Building Area | 3,698 sqft Living Area |
| 1st Floor Area | 1,598 sqft |
| 2nd Floor Area | 2,100 sqft |
| Flooring | Carpet |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2000 |
|---|---|
| Effective Year Built | Effective 2000 |
| Exterior Material | Brick Veneer |
| Roof Type | Hip |
| Lot Area | 8,825 sqft (0.203 acres) |
| Garage Area | 420 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Porch |
| Porch Area | 90 sqft |
| Patio Area | 390 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Sewer | Connected |
| Account Number | R17W349903BD010 |
|---|---|
| Street Address | 4017 CASTLE CRK |
| City | ROUND ROCK |
| State | TX |
| Zip | 78681-1038 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | S5968 - VISTA OAKS SEC 3 B, BLOCK D, LOT 10 |
| Legal Subdivision | VISTA OAKS SEC 3 B |
| Legal Block | D |
| Legal Lot Number | 10 |
| Jurisdiction | WILLIAMSON TX |
| Township / Civil Division | ROUND ROCK-GEORGETOWN |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 20604 |
Source: Williamson County records, as of September 11, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 4017 CASTLE CRK, ROUND ROCK, TX 78681-1038 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 8, 2016 · Amount on Record |
| Deed Sale | Dec 8, 2016 · Amount on Record |
| Deed Document Number | 2016115233 |
| Prior Transfer Date | Dec 7, 2016 |
| Prior Transfer Doc | 0000115233 |
| 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 | Leander Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $9,920.00 (+18.93%) Homeowner's exemption | $623,092 (-1.63%) Land $94,000 Building $529,092 | $623,092 (-1.63%) Land $94,000 Building $529,092 |
| 2023 | $8,341.00 (-6.45%) Homeowner's exemption | $633,418 Land $109,000 Building $524,418 | $633,418 Land $109,000 Building $524,418 |
| 2022 | $8,916.00 |
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 |
|---|---|
| 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 |
| Nearby Flood Claims | 2 (2004–2010) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Sep 2010 · rainfall accumulation |
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 | Low lower than 80% of the US · lower than 94% of Texas |
|---|---|
| Wildfire Likelihood | 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 | VISTA OAKS MUD serves 2,724 people · EPA ID TX2460139 |
|---|---|
| Water Source | Purchased surface water from CITY OF ROUND ROCK |
| Last State Inspection | Dec 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.
Source: FCC Broadband Data Collection, based on 425 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Spectrum Cable | 1,000 / 35 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Western Broadband.
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