Williamson County property record for 4504 Post Loop, Round Rock, TX 78681
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 3,056 sqft · built 2020 |
| Owner | Individual Name on Record |
| Tax Bill | $12,049 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | R-20-5410-10BS-0001 |
| Primary APN | R-20-5410-10BS-0001 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Stories | 2 Stories |
| Building Area | 3,056 sqft Living Area |
| 1st Floor Area | 1,980 sqft |
| 2nd Floor Area | 1,076 sqft |
| Flooring | Carpet |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 2020 |
|---|---|
| Effective Year Built | Effective 2022 |
| Exterior Material | Marblecrete |
| Foundation Type | Slab (Mat/Raft) |
| Garage Area | 470 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Porch |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Account Number | R595984 |
|---|---|
| Street Address | 4504 POST LOOP |
| City | ROUND ROCK |
| State | TX |
| Zip | 78681-2092 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | S12327 - HIGHLANDS AT MAYFIELD RANCH SEC 10B, BLOCK S, LOT 1 |
| Legal Subdivision | HIGHLANDS/MAYFIELD RANCH SEC 1 |
| Legal Block | S |
| Legal Lot Number | 1 |
| Jurisdiction | WILLIAMSON TX |
| Township / Civil Division | ROUND ROCK-GEORGETOWN |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 20609 |
Source: Williamson County records, as of October 2, 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Co-owner | Co-owner on Record |
| Mailing Address | 4501 POST LOOP, ROUND ROCK, TX 78681-2092 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 27, 2021 |
| Deed Sale | Aug 27, 2021 |
| Deed Document Number | 2021130320 |
| Record Updated | Jun 8, 2026 |
Source: Williamson County assessment roll, as of August 1, 2025
| Type | Name |
|---|---|
| State | Texas |
| County | Williamson County |
| Unified School District | Georgetown Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $12,049.00 (-2.07%) | $628,224 (+4.85%) Land $109,000 Building $519,224 | $628,224 (+4.85%) Land $109,000 Building $519,224 |
| 2023 | $12,304.00 (-19.99%) | $599,184 Land $115,000 Building $484,184 | $599,184 Land $115,000 Building $484,184 |
| 2022 | $15,378.00 |
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 | 2 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 | Moderate above 40% of the US · lower than 85% of Texas |
|---|---|
| Wildfire Likelihood | 0.07% 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 GEORGETOWN serves 191,639 people · EPA ID TX2460001 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jul 2025 |
| Lead | 5 ppb (2024–2026) action level 15 ppb |
| Water Quality | Total trihalomethanes not recorded as resolved · Apr 2026 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 2 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 512 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Spectrum Fiber | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Western Broadband Fixed Wireless | 200 / 40 |
May also be available: SOS Communications, VTX Communications.
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