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4100 Sapphire Loop, Round Rock, TX 78681 Property Records

Williamson County property record for 4100 Sapphire Loop, Round Rock, TX 78681 · Last verified October 2025

Property Highlights

Property TypeResidential > Single Family > Home
Bathrooms3 Baths
Year BuiltBuilt 2008
Square Footage2,852 sqft Living Area
Garage693 sqft
OccupancyOwner Occupied
Tax Bill$10,662.00 (2025)

Property Details

APN / Parcel Number

Primary APNR475399
Alternative APNs
  • R-17-W334-608A-0001-0005
  • 277203

Interior

Full Baths3 Baths
Partial Baths1 Partial Baths
Total Rooms2 Rooms
Building Area2,852 sqft Living Area
1st Floor2,852 sqft 1st Floor
Stories1 Stories
Interior StructureWallboard/Drywall Interior Structure
FireplaceFireplace
Fireplaces1 Fireplaces

Exterior

Year BuiltBuilt 2007
Effective Year BuiltEffective 2008
Exterior MaterialCombination Exterior
Foundation TypeMat/Raft Foundation (Slab) Foundation
Parking Spaces2 Parking Spaces
Garage Area693 sqft Garage
PorchOpen Porch
Porch Area267 sqft Porch

Utilities and HVAC

Cooling SystemCentral Cooling
Heating SystemCentral Heating

Location & Zoning

Account NumberR475399
Street Address4100 SAPPHIRE LOOP
CityROUND ROCK
StateTX
Zip78681-2431
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionS9086 - MAYFIELD RANCH SEC 8, BLOCK A, LOT 1
Legal SubdivisionMAYFIELD RANCH
Legal BlockA
Legal Lot Number1
JurisdictionWILLIAMSON TX
Minor Civil DivisionROUND ROCK-GEORGETOWN
Census Blockgroup1
Census Block1011
Census Tract20609

Owner

Source: Williamson County records · APN R475399

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 Record2 Individual Names on File
Mailing Address4100 SAPPHIRE LOOP, ROUND ROCK, TX 78681-2431
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

DateDocument
Dec 07, 2021Deed of Trust, Mortgage · Conventional Mortgage
BETTER MORTGAGE CORPORATION
Sep 16, 2019Warranty Deed, Transfer
BANK OF AMERICA
Feb 10, 2017Warranty Deed, Transfer
STEWART TITLE, STEWART TITLE/AUSTIN LLC
Feb 10, 2017Grant Deed, Transfer
STEWART TITLE, STEWART TITLE/AUSTIN LLC

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleSep 16, 2019
Deed SaleSep 16, 2019
Prior SaleFeb 10, 2017
Deed Doc Number2019087235
Record RefreshedJun 07, 2026

December 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionWILLIAMSON TX
Property Address4100 SAPPHIRE LOOP, ROUND ROCK, TX 78681-2431
Transaction TypeMortgage
Record UpdatedDec 17, 2021

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000186208
DateDec 07, 2021
Instrument2021186208
Lender
NameBETTER MORTGAGE CORPORATION
TypeMortgage Company
AddressNEW YORK, NY 10007
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueJan 01, 2052

September 2019: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionWILLIAMSON TX
Recording DateSep 16, 2019
Property Address4100 SAPPHIRE LOOP, ROUND ROCK, TX 78681-2431
Document Number0000087235
Instrument DateJul 09, 2019
Instrument87235
Transaction TypeTransfer
Record UpdatedSep 30, 2019
Title CompanyCAPITAL TITLE/TX LLC

Transaction

Tax$0.00
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipMarried Couple
Address4100 SAPPHIRE LOOP ROUND ROCK TX 786812431, ROUND ROCK, TX 78681-2431

Mortgage

Document Number87236
DateSep 16, 2019
Instrument87236
Lender
NameBANK OF AMERICA
TypeBank
AddressCHARLOTTE, NC 28255
Agreement
AmountAmount Recorded
Term360 Months
DueSep 15, 2049

February 2017: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionWILLIAMSON TX
Recording DateFeb 10, 2017
Property Address4100 SAPPHIRE LOOP, ROUND ROCK, TX 78681-2431
Document Number0000012836
Instrument DateFeb 10, 2017
Instrument12836
Transaction TypeTransfer
Record UpdatedFeb 16, 2017
Title CompanySTEWART TITLE, STEWART TITLE/AUSTIN LLC

Transaction

Tax$0.00
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCorporate Trust
Address1980 POST OAK BLVD #350 HOUSTON TX 770563819, 350, HOUSTON, TX 77056-3819
InvestorPossibly a Property Investor

February 2017: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionWILLIAMSON TX
Recording DateFeb 10, 2017
Property Address4100 SAPPHIRE LOOP, ROUND ROCK, TX 78681-2431
Document Number0000012837
Instrument DateFeb 10, 2017
Instrument12837
Transaction TypeTransfer
Record UpdatedFeb 16, 2017
Title CompanySTEWART TITLE, STEWART TITLE/AUSTIN LLC

Transaction

Tax$0.00
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address4100 SAPPHIRE LOOP ROUND ROCK TX 786812431, ROUND ROCK, TX 78681-2431

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateTexas
CountyWilliamson County
MunicipalityRound Rock City
Unified School DistrictLeander 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$10,662.00 (+11.78%) Homeowner's exemption$619,224 (-0.61%) Land $128,000 Building $491,224$619,224 (-0.61%) Land $128,000 Building $491,224
2023$9,538.00 (-4.58%) Homeowner's exemption$623,044 Land $132,000 Building $491,044$623,044 Land $132,000 Building $491,044
2022$9,996.00

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