Williamson County property record for 4100 Riardo Dr, Round Rock, TX 78665
| Property Type | Residential Vacant Land |
|---|---|
| Owner | 2 Individual Names on File |
| Last Sale | $530,080 (Nov 2025) |
| Tax Bill | $846 (2025) |
| Deeds & Mortgages | Nov 2025 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | R-14-2360-170W-0001 |
| Primary APN | R-14-2360-170W-0001 |
|---|---|
| Alternative APNs |
|
| Account Number | R142360170W0001 |
|---|---|
| Street Address | 4100 RIARDO DR |
| City | ROUND ROCK |
| State | TX |
| Zip | 78665-3110 |
| Property Category | Residential |
| Property Type | Vacant Land > Residential |
| Legal Description | S13561 - SALERNO PH 17, BLOCK W, LOT 1 |
| Legal Subdivision | SALERNO PH 17 |
| Legal Block | W |
| Legal Lot Number | 1 |
| Jurisdiction | WILLIAMSON TX |
| Township / Civil Division | TAYLOR |
| Census Block Group | 1 |
| Census Block | 1012 |
| Census Tract | 20812 |
4100 Riardo Dr, residential vacant land, is owned and occupied by two individuals who bought it in November 2025.
Source: Williamson County records, as of September 11, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4100 RIARDO DR, ROUND ROCK, TX 78665-3110 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | His Wife |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 18, 2025 · Amount on File |
| Deed Sale | Nov 18, 2025 · Amount on File |
| Deed Document Number | 202591138 |
| Record Updated | Oct 29, 2026 |
| Document Type | Vendor's Lien |
|---|---|
| Jurisdiction | WILLIAMSON TX |
| Recording Date | Nov 18, 2025 |
| Property Address | 4100 RIARDO DR, ROUND ROCK, TX 78665-3110 |
| Document Number | 0000091138 |
| Map Reference | DOC 2024066663 |
| Instrument Date | Nov 17, 2025 |
| Instrument | 2025091138 |
| Transaction Type | Transfer |
| Record Updated | Dec 2, 2025 |
| Title Company | AUSTIN TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 4100 RIARDO DR, ROUND ROCK, TX 78665-3110 |
| Document Number | 0000091139 |
|---|---|
| Date | Nov 18, 2025 |
| Instrument | 2025091139 |
| Name | KBHS HOME LOANS LLC |
|---|---|
| Type | Mortgage Company |
| Special Notes | Seller Financed |
| Type | VA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Dec 1, 2055 |
The 2025 property tax bill for 4100 Riardo Dr was $846.
Source: Williamson County assessment roll, as of September 11, 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Williamson County |
| Municipality | Round Rock City |
| Unified School District | Hutto Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $846.00 | $487,822 Land $83,500 Building $404,322 | $487,822 Land $83,500 Building $404,322 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4100 Riardo Dr in Zone X, an area of minimal flood risk.
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 7 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 4100 Riardo Dr is moderate, ranking above 53% of the US, with a 0.08% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 53% of the US · lower than 69% of Texas |
|---|---|
| Wildfire Likelihood | 0.08% annual chance |
| Exposure | Direct burnable vegetation |
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 | JONAH WATER SUD serves 29,861 people · EPA ID TX2460022 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Sep 2025 |
| Lead | 2 ppb (2024–2026) action level 15 ppb |
| Water Quality | Total trihalomethanes resolved · Apr 2019 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 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 143 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Fiber | 1,000 / 1,000 |
| Optimum Cable · Fiber in parts of the area | 940 / 35 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: Rise Broadband, SOS Communications, VTX Communications, Western Broadband.
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