Williamson County property record for 3516 Shellcastle Ln, Round Rock, TX 78681 · Last verified October 2025
| Property Type | Residential > Single Family > Home |
|---|---|
| Bathrooms | 3 Baths |
| Year Built | Built 2008 |
| Square Footage | 3,392 sqft Living Area |
| Lot Size | 0.158 acres |
| Garage | 399 sqft |
| Occupancy | Owner Occupied |
| Tax Bill | $8,964.00 (2025) |
Source: Williamson County records · APN R-16-5693-000G-0010
Assessment roll updated August 1, 2025 · Last verified October 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Owner Name on File |
|---|---|
| Mailing Address | 3516 SHELLCASTLE LN, ROUND ROCK, TX 78681-1143 |
| Occupancy | Owner Occupied |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Mar 03, 2009 |
| Deed Sale | Mar 03, 2009 |
| Prior Sale | Sep 04, 2007 |
| Deed Doc Number | 2009013816 |
| Record Refreshed | Jun 08, 2026 |
Source: Williamson County records · Assessment roll updated August 1, 2025 · Last verified October 2025
| 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 | $8,964.00 (+12.63%) Homeowner's exemption | $660,959 (+14.26%) Land $120,000 Building $540,959 | $660,959 (+14.26%) Land $120,000 Building $540,959 |
| 2023 | $7,959.00 (-4.18%) Homeowner's exemption | $578,444 Land $136,000 Building $442,444 | $578,444 Land $136,000 Building $442,444 |
| 2022 | $8,306.00 |
Source: FEMA National Flood Hazard Layer, Williamson County (48491C), updated October 5, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified: October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
| Primary APN | R-16-5693-000G-0010 |
|---|---|
| Alternative APNs |
|
| Full Baths | 3 Baths |
|---|---|
| Partial Baths | 1 Partial Baths |
| Building Area | 3,392 sqft Living Area |
| 1st Floor | 1,942 sqft 1st Floor |
| 2nd Floor | 1,450 sqft 2nd Floor |
| Stories | 2 Stories |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 2007 |
|---|---|
| Effective Year Built | Effective 2008 |
| Exterior Material | Brick Veneer Exterior |
| Foundation Type | Mat/Raft Foundation (Slab) Foundation |
| Lot Area | 6,905 sqft |
| Parking Spaces | 1 Parking Spaces |
| Garage Area | 399 sqft Garage |
| Porch | Open Porch |
| Porch Area | 360 sqft Porch |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Central Heating |
| Account Number | R460797 |
|---|---|
| Street Address | 3516 SHELLCASTLE LN |
| City | ROUND ROCK |
| State | TX |
| Zip | 78681-1143 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | S8720 - VILLAGE AT MAYFIELD RANCH PH 3, BLOCK G, LOT 10 |
| Legal Subdivision | VILLAGE AT MAYFIELD RANCH |
| Legal Phase | 3 |
| Legal Block | G |
| Legal Lot Number | 10 |
| Jurisdiction | WILLIAMSON TX |
| Minor Civil Division | ROUND ROCK-GEORGETOWN |
| Census Blockgroup | 2 |
| Census Block | 2009 |
| Census Tract | 20608 |
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