Williamson County property record for 3704 Cornerstone St, Round Rock, TX 78681
| Property Type | Single Family Home |
|---|---|
| Details | 2 ba · 1,422 sqft · built 1980 |
| Lot Size | 0.181 acres (7,898 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $5,077 (2025) |
| Deeds & Mortgages | Jul 2019 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | R-16-3466-0013-0038 |
| Primary APN | R-16-3466-0013-0038 |
|---|---|
| Alternative APNs |
|
| Full Baths | 2 Baths |
|---|---|
| Stories | 1 Story |
| Building Area | 1,422 sqft Living Area |
| 1st Floor Area | 1,422 sqft |
| Flooring | Carpet |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1980 |
| Exterior Material | Stone |
| Roof Type | Gable |
| Lot Area | 7,898 sqft (0.181 acres) |
| Garage Area | 480 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Porch |
| Porch Area | 252 sqft |
| Utility Building | 120 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Sewer | Connected |
| Account Number | R16346600130038 |
|---|---|
| Street Address | 3704 CORNERSTONE ST |
| City | ROUND ROCK |
| State | TX |
| Zip | 78681-3754 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | S3261 - BRUSHY CREEK SEC 2, BLOCK 13, LOT 38 |
| Legal Subdivision | BRUSHY CREEK SEC 2 |
| Legal Block | 13 |
| Legal Lot Number | 38 |
| Jurisdiction | WILLIAMSON TX |
| Township / Civil Division | ROUND ROCK-GEORGETOWN |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 20515 |
3704 Cornerstone St is owned and occupied by two individuals.
Source: Williamson County records, as of September 11, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 3704 CORNERSTONE ST, ROUND ROCK, TX 78681-3754 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 |
|---|---|
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WILLIAMSON TX |
| Property Address | 3704 CORNERSTONE ST, ROUND ROCK, TX 78681-3754 |
| Document Number | 0000071781 |
| Instrument Date | Jul 29, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Aug 16, 2019 |
| Title Company | NOT AVAILABLE |
| Name | Verified Name |
|---|---|
| Relationship | Husband and Wife |
| Address | 3704 CORNERSTONE ST ROUND ROCK TX 786813754, ROUND ROCK, TX 78681-3754 |
| Document Number | 0000071781 |
|---|---|
| Date | Aug 5, 2019 |
| Instrument | 71781 |
| Name | UNITED HERITAGE CU |
|---|---|
| Type | Credit Union |
| Address | AUSTIN, TX 78758 |
| Amount | Amount on Record |
|---|---|
| Term | 180 Months |
| Due | Aug 4, 2034 |
The 2025 property tax bill for 3704 Cornerstone St was $5,077 with exemptions applied.
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 | $5,077.00 Homeowner's exemption Disabled Person's exemption Veteran's exemption | $286,783 Land $71,500 Building $215,283 | $286,783 Land $71,500 Building $215,283 |
| 2023 | $4,642.00 (-8.39%) Homeowner's exemption Disabled Person's exemption Veteran's exemption | $319,340 Land $83,000 Building $236,340 | $319,340 Land $83,000 Building $236,340 |
| 2022 | $5,067.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 3704 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.
The area around 3704 Cornerstone St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 510 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.
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