Williamson County property record for 4012 Sapphire Loop, Round Rock, TX 78681 · Last verified October 2025
| Property Type | Residential > Single Family > Home |
|---|---|
| Bathrooms | 2 Baths |
| Year Built | Built 2010 |
| Square Footage | 2,338 sqft Living Area |
| Garage | 480 sqft |
| Occupancy | Owner Occupied |
| Tax Bill | $8,637.00 (2025) |
Source: Williamson County records · APN R475475
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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 4012 SAPPHIRE LOOP, ROUND ROCK, TX 78681-2430 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Oct 06, 2017 |
| Deed Sale | Oct 06, 2017 |
| Prior Sale | Mar 23, 2016 |
| Deed Doc Number | 2017093242 |
| Record Refreshed | Jun 07, 2026 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | WILLIAMSON TX |
| Recording Date | Oct 06, 2017 |
| Property Address | 4012 SAPPHIRE LOOP, ROUND ROCK, TX 78681-2430 |
| Document Number | 0000093242 |
| Instrument Date | Sep 11, 2017 |
| Instrument | 93242 |
| Transaction Type | Transfer |
| Record Updated | Nov 14, 2017 |
| Title Company | AUSTIN TITLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 4012 SAPPHIRE LOOP ROUND ROCK TX 786812430, ROUND ROCK, TX 78681-2430 |
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 | Leander 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 | $8,637.00 (+13.08%) Homeowner's exemption Senior Citizen's exemption | $565,785 (+4.9%) Land $128,000 Building $437,785 | $565,785 (+4.9%) Land $128,000 Building $437,785 |
| 2023 | $7,638.00 (-5.95%) Homeowner's exemption | $539,372 Land $132,000 Building $407,372 | $539,372 Land $132,000 Building $407,372 |
| 2022 | $8,121.00 |
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 | Low above 32% of the US · above 9% of Texas |
|---|---|
| Wildfire Likelihood | About 1 in 3,846 per year |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
Values are read at the parcel center point; lenders make the official flood determination.
| Primary APN | R475475 |
|---|---|
| Alternative APNs |
|
| Full Baths | 2 Baths |
|---|---|
| Building Area | 2,338 sqft Living Area |
| 1st Floor | 2,338 sqft 1st Floor |
| Stories | 1 Stories |
| Primary Flooring | Carpet Flooring |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 2009 |
|---|---|
| Effective Year Built | Effective 2010 |
| Exterior Material | Combination Exterior |
| Foundation Type | Mat/Raft Foundation (Slab) Foundation |
| Roof Construction | Hip Roof Construction |
| Parking Spaces | 2 Parking Spaces |
| Garage Area | 480 sqft Garage |
| Porch | Open Porch |
| Porch Area | 288 sqft Porch |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Central Heating |
| Account Number | R475475 |
|---|---|
| Street Address | 4012 SAPPHIRE LOOP |
| City | ROUND ROCK |
| State | TX |
| Zip | 78681-2430 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | S9099 - MAYFIELD RANCH SEC 9, BLOCK A, LOT 50 |
| Legal Subdivision | MAYFIELD RANCH |
| Legal Block | A |
| Legal Lot Number | 50 |
| Jurisdiction | WILLIAMSON TX |
| Minor Civil Division | ROUND ROCK-GEORGETOWN |
| Census Blockgroup | 1 |
| Census Block | 1015 |
| Census Tract | 20609 |
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