Williamson County property record for 3932 Sapphire Loop, Round Rock, TX 78681
| Property Type | Single Family Home |
|---|---|
| Details | 2 ba · 2,366 sqft · built 2006 |
| Owner | 2 Owner Names on File |
| Tax Bill | $4,881 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | R475455 |
| Primary APN | R475455 |
|---|---|
| Alternative APNs |
|
| Full Baths | 2 Baths |
|---|---|
| Stories | 1 Story |
| Building Area | 2,366 sqft Living Area |
| 1st Floor Area | 2,366 sqft |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2006 |
|---|---|
| Effective Year Built | Effective 2008 |
| Foundation Type | Slab (Mat/Raft) |
| Garage Area | 480 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Porch |
| Porch Area | 264 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Account Number | R475455 |
|---|---|
| Street Address | 3932 SAPPHIRE LOOP |
| City | ROUND ROCK |
| State | TX |
| Zip | 78681-2429 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | S9099 - MAYFIELD RANCH SEC 9, BLOCK A, LOT 30 |
| Legal Subdivision | MAYFIELD RANCH |
| Legal Block | A |
| Legal Lot Number | 30 |
| Jurisdiction | WILLIAMSON TX |
| Township / Civil Division | ROUND ROCK-GEORGETOWN |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 20609 |
Source: Williamson County records · APN R475455
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 Owner Names on File |
|---|---|
| Mailing Address | 3932 SAPPHIRE LOOP, ROUND ROCK, TX 78681-2429 |
| Occupancy | Owner Occupied |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | May 23, 2007 |
| Deed Sale | May 23, 2007 |
| Deed Document Number | 2007042782 |
| Record Updated | Jun 07, 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 | 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 | $4,881.00 (+8.73%) Homeowner's exemption Senior Citizen's exemption | $563,858 (+4.68%) Land $128,000 Building $435,858 | $563,858 (+4.68%) Land $128,000 Building $435,858 |
| 2023 | $4,489.00 (-27.62%) Homeowner's exemption Senior Citizen's exemption | $538,630 Land $132,000 Building $406,630 | $538,630 Land $132,000 Building $406,630 |
| 2022 | $6,202.00 |
Source: FEMA National Flood Hazard Layer as of October 5, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 3 in force |
| Wildfire Risk | Low lower than 67% of the US · lower than 91% of Texas |
|---|---|
| Wildfire Likelihood | 0.03% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Spectrum Fiber · Cable in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Electronic Corporate Pages Fixed Wireless | 200 / 40 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
Based on FCC filings for 537 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System 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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