Williamson County property record for 3701 Cornerstone St, Round Rock, TX 78681
| Property Type | Single Family Home |
|---|---|
| Details | 2 ba · 1,384 sqft · built 1980 |
| Lot Size | 0.193 acres (8,423 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $152,300 (May 2010) |
| Tax Bill | $5,023 (2025) |
| Deeds & Mortgages | May 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | R-16-3466-0015-0004 |
| Primary APN | R-16-3466-0015-0004 |
|---|---|
| Alternative APNs |
|
| Full Baths | 2 Baths |
|---|---|
| Stories | 1 Story |
| Building Area | 1,384 sqft Living Area |
| Gross Area | 1,682 sqft |
| 1st Floor Area | 1,384 sqft |
| Flooring | Carpet |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1980 |
| Exterior Material | Wood |
| Roof Type | Gable |
| Lot Area | 8,423 sqft (0.193 acres) |
| Garage Area | 400 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Porch |
|---|---|
| Porch Area | 82 sqft |
| Patio Area | 298 sqft |
| Utility Building | 150 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Sewer | Connected |
| Account Number | R16346600150004 |
|---|---|
| Street Address | 3701 CORNERSTONE ST |
| City | ROUND ROCK |
| State | TX |
| Zip | 78681-3747 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | S3261 - BRUSHY CREEK SEC 2, BLOCK 15, LOT 4 |
| Legal Subdivision | BRUSHY CREEK SEC 2 |
| Legal Block | 15 |
| Legal Lot Number | 4 |
| Jurisdiction | WILLIAMSON TX |
| Township / Civil Division | ROUND ROCK-GEORGETOWN |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 20515 |
3701 Cornerstone St is owned and occupied by two individuals who bought it in May 2010.
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 | 3701 CORNERSTONE ST, ROUND ROCK, TX 78681-3747 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 21, 2010 · Amount on File |
| Deed Sale | May 21, 2010 · Amount on File |
| Deed Document Number | 201033368 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WILLIAMSON TX |
| Property Address | 3701 CORNERSTONE ST, ROUND ROCK, TX 78681-3747 |
| Document Number | 0000054665 |
| Instrument Date | May 21, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Jun 9, 2020 |
| Title Company | TEXAS NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Married Couple |
| Address | 3701 CORNERSTONE ST ROUND ROCK TX 786813747, ROUND ROCK, TX 78681-3747 |
| Document Number | 0000054665 |
|---|---|
| Date | May 27, 2020 |
| Instrument | 54665 |
| Name | AMPLIFY CU |
|---|---|
| Address | AUSTIN, TX 78727 |
| Amount | Amount on Record |
|---|---|
| Term | 180 Months |
| Due | May 26, 2035 |
The 2025 property tax bill for 3701 Cornerstone St was $5,023 with a homeowner's exemption.
Source: Williamson County assessment roll, as of September 11, 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Williamson County |
| Unified School District | Round Rock Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $5,023.00 Homeowner's exemption | $278,815 Land $71,500 Building $207,315 | $278,815 Land $71,500 Building $207,315 |
| 2023 | $4,503.00 (-8.83%) Homeowner's exemption | $312,870 Land $83,000 Building $229,870 | $312,870 Land $83,000 Building $229,870 |
| 2022 | $4,939.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 3701 Cornerstone St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 5, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 3701 Cornerstone St is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.8% of the US · lower than 99.8% of Texas |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
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 | BRUSHY CREEK MUD serves 18,314 people · EPA ID TX2460061 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | May 2025 |
| Lead | 1 ppb (2023–2025) 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 794 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: SOS Communications, VTX Communications, Western Broadband.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures