Williamson County property record for 3909 Upper Passage Ln, Round Rock, TX 78681
| Property Type | Vacant Land |
|---|---|
| Lot Size | 14 acres (610,493 sqft) |
| Owner | Company Name on Record |
| Flood Zone | Zone X (minimal risk) |
| APN | R-16-5012-000C-0002 |
| Primary APN | R-16-5012-000C-0002 |
|---|---|
| Alternative APNs |
|
| Lot Area | 610,493 sqft (14 acres) |
|---|
| Account Number | R392734 |
|---|---|
| Street Address | 3909 UPPER PASSAGE LN |
| City | ROUND ROCK |
| State | TX |
| Zip | 78681-1092 |
| Property Category | Vacant Land |
| Property Type | Vacant Land > Uncategorized |
| Legal Description | S7253 - PRESERVE AT STONE OAK PH 1 SEC 2, BLOCK C, LOT 2, ACRES 14.015, (OPEN SPACE) |
| Legal Subdivision | PRESERVE AT STONE OAK |
| Legal Phase | 1 |
| Legal Block | C |
| Legal Lot Number | 2 |
| Jurisdiction | WILLIAMSON TX |
| Township / Civil Division | ROUND ROCK-GEORGETOWN |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 20608 |
Source: Williamson County records, as of October 2, 2025
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 | Company Name on Record |
|---|---|
| Mailing Address | 101 E OLD SETTLERS BLVD STE 200, 200, ROUND ROCK, TX 78664-2266 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 28, 2018 |
| Deed Sale | Dec 28, 2018 |
| Deed Document Number | 2018113510 |
| Record Updated | Jun 8, 2026 |
Source: Williamson County assessment roll, as of August 1, 2025
| Type | Name |
|---|---|
| State | Texas |
| County | Williamson County |
| Municipality | Round Rock City |
| Unified School District | Round Rock Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | Additional exemption filed | $4,205 (-) Land $4,205 | $4,205 (-) Land $4,205 |
| 2023 | Additional exemption filed | $4,205 Land $4,205 | $4,205 Land $4,205 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 | 1 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.
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 | 0.02% 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 364 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: VTX Communications, Western Broadband.
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