Williamson County property record for 1580 Monterosa Loop, Round Rock, TX 78665
| Property Type | Single Family Home |
|---|---|
| Details | 3 ba · 3,144 sqft · built 2010 |
| Lot Size | 0.242 acres (10,558 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $312,000 (Dec 2010) |
| Tax Bill | $6,414 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | R-16-5684-0001-0013 |
| Primary APN | R-16-5684-0001-0013 |
|---|---|
| Alternative APNs |
|
| Full Baths | 3 Baths |
|---|---|
| Stories | 2 Stories |
| Building Area | 3,144 sqft Living Area |
| 1st Floor Area | 2,620 sqft |
| 2nd Floor Area | 524 sqft |
| Flooring | Tile |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2010 |
|---|---|
| Effective Year Built | Effective 2010 |
| Exterior Material | Brick Veneer |
| Roof Type | Hip |
| Lot Area | 10,558 sqft (0.242 acres) |
| Garage Area | 579 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Porch |
| Porch Area | 378 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Account Number | R16568400010013 |
|---|---|
| Street Address | 1580 MONTEROSA LOOP |
| City | ROUND ROCK |
| State | TX |
| Zip | 78665-1389 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | S9543 - TERAVISTA SEC 13B, BLOCK 1, LOT 13 |
| Legal Subdivision | TERAVISTA SEC 13B |
| Legal Block | 1 |
| Legal Lot Number | 13 |
| Jurisdiction | WILLIAMSON TX |
| Township / Civil Division | ROUND ROCK-GEORGETOWN |
| Census Block Group | 2 |
| Census Block | 2001 |
| Census Tract | 21510 |
Source: Williamson County records · APN R-16-5684-0001-0013
Assessment roll updated September 15, 2025 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 1580 MONTEROSA LOOP, ROUND ROCK, TX 78665-1389 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Dec 29, 2010 · Amount on Record |
| Deed Sale | Dec 29, 2010 · Amount on Record |
| Deed Document Number | 201088444 |
| Last Transfer Date | Oct 30, 2024 |
| Transfer Doc | 0000086884 |
| Record Updated | Sep 20, 2026 |
Source: Williamson County records · Assessment roll updated September 15, 2025 · Last verified August 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Williamson County |
| Unified School District | Round Rock Independent School District (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $6,414.00 | $548,308 (-5.45%) | $585,601 (+0.98%) Land $92,000 Building $493,601 |
| 2024 | $6,414.00 (+1.46%) | ||
| 2023 | $6,322.00 (-20.9%) Homeowner's exemption Senior Citizen's exemption | $579,906 Land $92,000 Building $487,906 | $579,906 Land $92,000 Building $487,906 |
| 2022 | $7,992.00 |
Source: FEMA National Flood Hazard Layer as of October 5, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 5 in force |
| Wildfire Risk | Low lower than 93% of the US · lower than 96% of Texas |
|---|---|
| Wildfire Likelihood | 0.02% annual chance |
| Exposure | Direct burnable vegetation at the parcel |
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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| AT&T Fiber · Fixed Wireless | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: Electronic Corporate Pages, Optimum Communications, SOS Communications, Valley Telephone Cooperative, Inc. (TX).
Based on FCC filings for 369 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | WILLIAMSON COUNTY MUD 11 serves 4,248 people |
|---|---|
| Water Source | Purchased surface water from CITY OF ROUND ROCK |
| Last State Inspection | Nov 2024 |
| Lead | 5 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 last 3 years |
Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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