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4557 Post Loop, Round Rock, TX 78681 Property Records

Williamson County property record for 4557 Post Loop, Round Rock, TX 78681 · Last verified October 2025

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms4 Beds
Bathrooms3 Baths
Year BuiltBuilt 2023
Square Footage2,513 sqft Living Area
Garage438 sqft
OccupancyOwner Occupied
Tax Bill$8,877.00 (2025)

Owner

Source: Williamson County records · APN R-20-5410-110G-0112

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 RecordIndividual Name on File
Co-ownerVerified Secondary Owner
Mailing Address4557 POST LOOP, ROUND ROCK, TX 78681-2092
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleMar 01, 2022
Deed SaleMar 01, 2022
Deed Doc Number2022025921
Record RefreshedJun 08, 2026

March 2022: Vendor's Lien, Subdivision Related Transfer

Document TypeVendor's Lien
JurisdictionWILLIAMSON TX
Recording DateMar 01, 2022
Property Address4557 POST LOOP, ROUND ROCK, TX 78681-2092
Document Number0000025921
Map ReferenceFILE 2020100361
Instrument DateFeb 24, 2022
Instrument2022025921
Transaction TypeSubdivision Related Transfer
Record UpdatedOct 26, 2023
Title CompanyALAMO TITLE COMPANY

Transaction

Tax$0.00
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address4557 POST LOOP, ROUND ROCK, TX 78681-2092

Mortgage

Document Number0000025922
DateMar 01, 2022
Instrument2022025922
Lender
NameFIRSTBANK
TypeBank
Special NotesLender is also the Seller
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueMar 01, 2052

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateTexas
CountyWilliamson County
Unified School DistrictGeorgetown 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.

YearTax BillAssessed ValueAssessed Market Value
2025$8,877.00 (+12.42%) Homeowner's exemption$552,292 (+25.77%) Land $109,000 Building $443,292$552,292 (+25.77%) Land $109,000 Building $443,292
2023$7,896.00 (+19.13%) Homeowner's exemption$439,133 Land $115,000 Building $324,133$439,133 Land $115,000 Building $324,133
2022$6,628.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Williamson County (48491C), updated October 5, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified: October 2026

Flood

FEMA Flood ZoneZone X
Flood HazardMinimal
500-Year FloodplainNo
Special Flood Hazard AreaNo

Wildfire

Wildfire RiskModerate
above 47% of the US · above 21% of Texas
Wildfire LikelihoodAbout 1 in 1,266 per year
ExposureDirect
burnable vegetation at the parcel

Values are read at the parcel center point; lenders make the official flood determination.

Property Details

APN / Parcel Number

Primary APNR-20-5410-110G-0112
Alternative APNs
  • R600366
  • 425081

Interior

Bedrooms4 Beds
Full Baths3 Baths
Building Area2,513 sqft Living Area
1st Floor1,644 sqft 1st Floor
2nd Floor869 sqft 2nd Floor
Stories2 Stories
Primary FlooringTile Flooring
Interior StructureWallboard/Drywall Interior Structure

Exterior

Year BuiltBuilt 2021
Effective Year BuiltEffective 2023
Exterior MaterialStone Exterior
Foundation TypeMat/Raft Foundation (Slab) Foundation
Parking Spaces2 Parking Spaces
Garage Area438 sqft Garage
PorchOpen Porch

Utilities and HVAC

Cooling SystemCentral Cooling
Heating SystemCentral Heating

Location & Zoning

Account NumberR600366
Street Address4557 POST LOOP
CityROUND ROCK
StateTX
Zip78681-2092
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionS12403 - HIGHLANDS AT MAYFIELD RANCH SEC 11, BLOCK G, LOT 112
Legal SubdivisionHIGHLANDS/MAYFIELD RANCH SEC 1
Legal BlockG
Legal Lot Number112
JurisdictionWILLIAMSON TX
Minor Civil DivisionROUND ROCK-GEORGETOWN
Census Blockgroup2
Census Block2000
Census Tract20609

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