4577 Post Loop, Round Rock, TX 78681 Property Records

Williamson County property record for 4577 Post Loop, Round Rock, TX 78681

Property Summary

Property Type	Single Family Home
Details	3 bd · 3 ba · 2,159 sqft · built 2020
Owner	Individual Name on File
Tax Bill	$8,034 (2025)
Deeds & Mortgages	May 2021 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`R-20-5410-110G-0117`

Property Details

APN / Parcel Number

Primary APN	`R-20-5410-110G-0117`
Alternative APNs	`R600371` `425086`

Interior

Bedrooms	3 Beds
Full Baths	3 Baths
Half Baths	1 Half Bath
Stories	2 Stories
Building Area	2,159 sqft Living Area
1st Floor Area	1,350 sqft
2nd Floor Area	809 sqft
Flooring	Carpet
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 2020
Effective Year Built	Effective 2022
Exterior Material	Marblecrete
Foundation Type	Slab (Mat/Raft)
Garage Area	525 sqft
Parking Spaces	2 Parking Spaces

Exterior Amenities

Pool Area	510 sqft
Porch	Open Porch
Porch Area	154 sqft
Patio Area	40 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Account Number	R600371
Street Address	4577 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 117
Legal Block	G
Legal Lot Number	117
Jurisdiction	WILLIAMSON TX
Township / Civil Division	ROUND ROCK-GEORGETOWN
Census Block Group	2
Census Block	2000
Census Tract	20609

Owner

Source: Williamson County records · APN R-20-5410-110G-0117

Assessment roll updated August 1, 2025 · Last verified October 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 File
Mailing Address	4577 POST LOOP, ROUND ROCK, TX 78681-2092
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	May 27, 2021
Deed Sale	May 27, 2021
Deed Document Number	2021078984
Record Updated	Jun 08, 2026

May 2021: Vendor's Lien, Transfer

Document Type	Vendor's Lien
Jurisdiction	WILLIAMSON TX
Recording Date	May 27, 2021
Property Address	4577 POST LOOP, ROUND ROCK, TX 78681-2092
Document Number	0000078984
Map Reference	PL 2020100361
Instrument Date	May 26, 2021
Instrument	2021078984
Transaction Type	Transfer
Record Updated	Oct 21, 2022
Title Company	E-CHICAGO TITLE, CHICAGO TITLE

Transaction

Tax	$0.00
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	10721 RESEARCH BLVD # BLVDB-210, 10721, AUSTIN, TX 78759-5694

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4577 POST LOOP, ROUND ROCK, TX 78681-2092

Mortgage

Document Number	0000078985
Date	May 27, 2021
Instrument	2021078985

Lender

Name	VELOCIO MORTGAGE LLC
Type	Mortgage Company
Special Notes	Seller Financed

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jun 01, 2051

Tax Assessment & Valuation

Source: Williamson County records · Assessment roll updated August 1, 2025 · Last verified October 2025

Property Jurisdictions

Type	Name
State	Texas
County	Williamson County
Unified School District	Georgetown Independent School District (PK - 12)

Tax Bill & Assessment History

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	$8,034.00 (+12.58%) Homeowner's exemption	$588,758 (+12.72%) Land $109,000 Building $479,758	$588,758 (+12.72%) Land $109,000 Building $479,758
2023	$7,136.00 (-6.56%) Homeowner's exemption	$522,341 Land $115,000 Building $407,341	$522,341 Land $115,000 Building $407,341
2022	$7,637.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Williamson County (48491C), as of October 5, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 484910206092, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	2 in force

Wildfire

Wildfire Risk	Moderate above 47% of the US · lower than 79% of Texas
Wildfire Likelihood	0.08% 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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

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
Electronic Corporate Pages Fixed Wireless	200 / 40

May also be available: SOS Communications, Valley Telephone Cooperative, Inc. (TX).

Based on FCC filings for 134 locations within half a mile of this property.

Cell Coverage

5G (outdoors only) and 4G LTE

Drinking Water

Source: EPA Safe Drinking Water Information System, water system TX2460001, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CITY OF GEORGETOWN serves 191,639 people
Water Source	Surface water
Last State Inspection	Jul 2025
Lead	5 ppb (2024–2026) action level 15 ppb

Violations Reported to EPA

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 as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.