Williamson County property record for 4545 Post Loop, Round Rock, TX 78681
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,256 sqft · built 2021 |
| Lot Size | 0.142 acres (6,186 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $468,600 (Dec 2021) |
| Tax Bill | $10,433 (2025) |
| Deeds & Mortgages | Dec 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | R-20-5410-110G-0109 |
| Primary APN | R-20-5410-110G-0109 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Stories | 1 Story |
| Building Area | 2,256 sqft Living Area |
| 1st Floor Area | 2,256 sqft |
| Year Built | Built 2021 |
|---|---|
| Effective Year Built | Effective 2021 |
| Exterior Material | Stone |
| Lot Area | 6,186 sqft (0.142 acres) |
| Garage Area | 420 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Porch |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Account Number | R205410110G0109 |
|---|---|
| Street Address | 4545 POST LOOP |
| City | ROUND ROCK |
| State | TX |
| Zip | 78681-2092 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | S12403 - HIGHLANDS AT MAYFIELD RANCH SEC 11, BLOCK G, LOT 109 |
| Legal Subdivision | HIGHLANDS AT MAYFIELD RANCH SEC 11 |
| Legal Block | G |
| Legal Lot Number | 109 |
| 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 September 15, 2025
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 Record |
|---|---|
| Mailing Address | 330 S ESPLANADE, ALPHARETTA, GA 30009-3158 |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 17, 2021 · Amount on Record |
| Deed Sale | Dec 17, 2021 · Amount on Record |
| Deed Document Number | 2021191003 |
| Prior Transfer Date | Dec 16, 2021 |
| Prior Transfer Doc | 0000191003 |
| Record Updated | Sep 20, 2026 |
| Document Type | Vendor's Lien |
|---|---|
| Jurisdiction | WILLIAMSON TX |
| Recording Date | Dec 17, 2021 |
| Property Address | 4545 POST LOOP, ROUND ROCK, TX 78681-2092 |
| Document Number | 0000191003 |
| Map Reference | PL 2020100361 |
| Instrument Date | Dec 16, 2021 |
| Instrument | 2021191003 |
| Transaction Type | Subdivision Related Transfer |
| Record Updated | Oct 21, 2022 |
| Title Company | TEXAS PREMIER TITLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 330 S ESPLANADE, ALPHARETTA, GA 30009-3158 |
| Document Number | 0000191005 |
|---|---|
| Date | Dec 17, 2021 |
| Instrument | 2021191005 |
| Name | LOANDEPOT.COM LLC |
|---|---|
| Type | Mortgage Company |
| Special Notes | Seller Financed |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 181 Months |
| Due | Jan 1, 2037 |
Source: Williamson County assessment roll, as of September 15, 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 | $10,433.00 | $524,648 (+0.64%) Land $109,000 Building $415,648 | $524,648 (+0.64%) Land $109,000 Building $415,648 |
| 2024 | $10,433.00 (-2.55%) | ||
| 2023 | $10,706.00 (+0.6%) | $521,326 Land $115,000 Building $406,326 | $521,326 Land $115,000 Building $406,326 |
| 2022 | $10,642.00 |
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 47% of the US · lower than 79% of Texas |
|---|---|
| Wildfire Likelihood | 0.08% annual chance |
| Exposure | Direct burnable vegetation |
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 134 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Spectrum Fiber · Cable in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Western Broadband Fixed Wireless | 200 / 40 |
May also be available: SOS Communications, VTX Communications.
5G (outdoors only) and 4G LTE
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