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4505 Post Loop, Round Rock, TX 78681 Property Records

Williamson County property record for 4505 Post Loop, Round Rock, TX 78681

Property Summary

Property TypeSingle Family Home
Details3 bd · 2.5 ba · 2,162 sqft · built 2020
Last Sale$394,800 (Apr 2021)
Tax Bill$9,383 (2025)
Deeds & MortgagesApr 2021 Mortgage
Flood ZoneZone X (minimal risk)
APNR-20-5410-10BG-0099

Property Details

APN / Parcel Number

Primary APNR-20-5410-10BG-0099
Alternative APNs
  • R595981
  • 420010

Interior

Bedrooms3 Beds
Full Baths2.5 Baths
Half Baths1 Half Bath
Stories1 Story
Building Area2,162 sqft Living Area
1st Floor Area2,162 sqft
FlooringTile
Interior WallsWallboard/Drywall

Exterior

Year BuiltBuilt 2020
Effective Year BuiltEffective 2020
Exterior MaterialStone
Garage Area504 sqft
Parking Spaces2 Parking Spaces
PorchOpen Porch
Porch Area306 sqft

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemCentral

Location & Zoning

Account NumberR20541010BG0099
Street Address4505 POST LOOP
CityROUND ROCK
StateTX
Zip78681-2092
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionS12327 - HIGHLANDS AT MAYFIELD RANCH SEC 10B, BLOCK G, LOT 99
Legal SubdivisionHIGHLANDS AT MAYFIELD RANCH SEC 10B
Legal BlockG
Legal Lot Number99
JurisdictionWILLIAMSON TX
Township / Civil DivisionROUND ROCK-GEORGETOWN
Census Block Group2
Census Block2000
Census Tract20609

Owner

Source: Williamson County records, as of September 11, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Mailing AddressUNAVAILABLE
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Last SaleApr 15, 2021 · Amount on Record
Deed SaleApr 15, 2021 · Amount on Record
Deed Document Number202155802
Record UpdatedOct 29, 2026

April 2021: Vendor's Lien, Subdivision Related Transfer

Document TypeVendor's Lien
JurisdictionWILLIAMSON TX
Recording DateApr 15, 2021
Property Address4505 POST LOOP, ROUND ROCK, TX 78681-2092
Document Number0000055802
Map ReferencePL 2020060695
Instrument DateApr 15, 2021
Instrument2021055802
Transaction TypeSubdivision Related Transfer
Record UpdatedOct 21, 2022
Title CompanyTEXAS PREMIER TITLE, TEXAS PREMIER AGENCY

Transaction

Tax$0.00
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address4505 POST LOOP, ROUND ROCK, TX 78681-2092

Mortgage

Document Number0000055803
DateApr 15, 2021
Instrument2021055803
Lender
NameLOANDEPOT.COM LLC
TypeMortgage Company
Special NotesSeller Financed
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueMay 1, 2051

Tax Assessment & Valuation

Source: Williamson County assessment roll, as of September 11, 2026

Property Jurisdictions

TypeName
StateTexas
CountyWilliamson County
Unified School DistrictGeorgetown Independent School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$9,383.00 (+1.94%) Homeowner's exemption$469,641 (-11.06%) Land $109,000 Building $360,641$469,641 (-11.06%) Land $109,000 Building $360,641
2024$9,204.00 (-5.17%)
2023$9,706.00 (-19.08%) Homeowner's exemption$528,027 Land $115,000 Building $413,027$528,027 Land $115,000 Building $413,027
2022$11,994.00

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

Source: FEMA National Flood Hazard Layer, effective October 5, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies2 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.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskModerate
above 40% of the US · lower than 85% of Texas
Wildfire Likelihood0.07% annual chance
ExposureIndirect
within ember reach
Adjoins Burnable LandYes

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemCITY OF GEORGETOWN
serves 191,639 people · EPA ID TX2460001
Water SourceSurface water
Last State InspectionJul 2025
Lead5 ppb (2024–2026)
action level 15 ppb

Violations Reported to EPA

Water QualityTotal trihalomethanes
not recorded as resolved · Apr 2026
Treatment and ProcedureNone
last 10 years
Monitoring and Reporting2
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 512 locations within half a mile, as of December 31, 2025

ProviderMax 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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