Williamson County property record for 4109 Sapphire Loop, Round Rock, TX 78681
| Property Type | Single Family Home |
|---|---|
| Details | 3.5 ba · 3,565 sqft · built 2007 |
| Lot Size | 0.308 acres (13,435 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $351,400 (May 2017) |
| Tax Bill | $11,971 (2025) |
| Deeds & Mortgages | Feb 2021 Mortgage May 2017 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | R17W334608B0009 |
| Primary APN | R17W334608B0009 |
|---|---|
| Alternative APNs |
|
| Full Baths | 3.5 Baths |
|---|---|
| Half Baths | 1 Half Bath |
| Total Rooms | 3 Rooms |
| Stories | 2 Stories |
| Building Area | 3,565 sqft Living Area |
| 1st Floor Area | 2,189 sqft |
| 2nd Floor Area | 1,376 sqft |
| Flooring | Tile |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2007 |
|---|---|
| Effective Year Built | Effective 2007 |
| Exterior Material | Stone |
| Roof Material | Other |
| Lot Area | 13,435 sqft (0.308 acres) |
| Garage Area | 680 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Porch |
| Porch Area | 138 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Account Number | R17W334608B0009 |
|---|---|
| Street Address | 4109 SAPPHIRE LOOP |
| City | ROUND ROCK |
| State | TX |
| Zip | 78681-2431 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | SF2 |
| Legal Description | S9086 - MAYFIELD RANCH SEC 8, BLOCK B, LOT 9 |
| Legal Subdivision | MAYFIELD RANCH SEC 8 |
| Legal Block | B |
| Legal Lot Number | 9 |
| Jurisdiction | WILLIAMSON TX |
| Township / Civil Division | ROUND ROCK-GEORGETOWN |
| Census Block Group | 1 |
| Census Block | 1012 |
| Census Tract | 20609 |
4109 Sapphire Loop is owned and occupied by two individuals who bought it in May 2017.
Source: Williamson County records, as of September 11, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4109 SAPPHIRE LOOP, ROUND ROCK, TX 78681-2431 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Feb 3, 2021 | Deed of Trust, Mortgage · Conventional Mortgage INTERBANK |
| May 30, 2017 | Warranty Deed, Transfer · FHA Mortgage UNIVERSITY CU |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 30, 2017 · Amount on File |
| Deed Sale | May 30, 2017 · Amount on File |
| Prior Sale | Dec 26, 2007 · Amount on File |
| Deed Document Number | 201748496 |
| Prior Transfer Date | May 26, 2017 |
| Prior Transfer Doc | 0000048496 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WILLIAMSON TX |
| Property Address | 4109 SAPPHIRE LOOP, ROUND ROCK, TX 78681-2431 |
| Transaction Type | Mortgage |
| Record Updated | Feb 15, 2021 |
| Title Company | CAPITAL TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000017318 |
|---|---|
| Date | Feb 3, 2021 |
| Instrument | 2021017318 |
| Name | INTERBANK |
|---|---|
| Type | Bank |
| Address | OKLAHOMA CITY, OK 73112 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 300 Months |
| Due | Feb 1, 2046 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | WILLIAMSON TX |
| Recording Date | May 30, 2017 |
| Property Address | 4109 SAPPHIRE LOOP, ROUND ROCK, TX 78681-2431 |
| Document Number | 0000048496 |
| Instrument Date | May 26, 2017 |
| Instrument | 48496 |
| Transaction Type | Transfer |
| Record Updated | Jul 12, 2017 |
| Title Company | CAPITAL TITLE/TX LLC |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Husband and Wife |
| Address | 4109 SAPPHIRE LOOP ROUND ROCK TX 786812431, ROUND ROCK, TX 78681-2431 |
| Document Number | 48497 |
|---|---|
| Date | May 30, 2017 |
| Instrument | 48497 |
| Name | UNIVERSITY CU |
|---|---|
| Type | Credit Union |
| Address | AUSTIN, TX 78759 |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | May 29, 2047 |
| Document Number | 48498, |
|---|---|
| Date | May 30, 2017 |
| Instrument | 48498 |
| Name | UNIVERSITY CU |
|---|---|
| Type | Credit Union |
| Address | AUSTIN, TX 78759 |
| Amount | Amount on Record |
|---|---|
| Term | 180 Months |
| Due | May 29, 2032 |
The 2025 property tax bill for 4109 Sapphire Loop was $11,971 with a homeowner's exemption.
Source: Williamson County assessment roll, as of September 11, 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Williamson County |
| Municipality | Round Rock City |
| Unified School District | Leander Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $11,971.00 Homeowner's exemption | $644,276 Land $113,000 Building $531,276 | $644,276 Land $113,000 Building $531,276 |
| 2023 | $9,773.00 (-4.45%) Homeowner's exemption | $674,627 Land $132,000 Building $542,627 | $674,627 Land $132,000 Building $542,627 |
| 2022 | $10,228.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4109 Sapphire Loop in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 | 3 in force |
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.
Wildfire risk around 4109 Sapphire Loop is low, with a 0.03% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| 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 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 | CITY OF ROUND ROCK serves 130,662 people · EPA ID TX2460003 |
|---|---|
| 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, 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.
Source: FCC Broadband Data Collection, based on 537 locations within half a mile, as of December 31, 2025
| 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 |
| Western Broadband Fixed Wireless | 200 / 40 |
| T-Mobile Fixed Wireless | 100 / 20 |
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