4209 Flat Stone Ct, Round Rock, TX 78665 Property Records

Williamson County property record for 4209 Flat Stone Ct, Round Rock, TX 78665

Property Summary

Property Type	Single Family Home
Details	2 ba · 1,848 sqft · built 2004
Lot Size	0.151 acres (6,586 sqft)
Owner	2 Individual Names on Record
Last Sale	$436,100 (Dec 2022)
Tax Bill	$4,661 (2025)
Deeds & Mortgages	Jul 2023 Mortgage Dec 2022 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`R-16-5646-0002-0020`

Property Details

APN / Parcel Number

Primary APN	`R-16-5646-0002-0020`
Alternative APNs	`R413702` `225803`

Interior

Full Baths	2 Baths
Stories	1 Story
Building Area	1,848 sqft Living Area
1st Floor Area	1,848 sqft
Flooring	Carpet
Interior Walls	Wallboard/Drywall
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 2004
Effective Year Built	Effective 2004
Exterior Material	Stone
Roof Material	Other
Lot Area	6,586 sqft (0.151 acres)
Garage Area	400 sqft
Parking Spaces	2 Parking Spaces
Porch	Open Porch
Porch Area	112 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Account Number	R16564600020020
Street Address	4209 FLAT STONE CT
City	ROUND ROCK
State	TX
Zip	78665-1175
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	S7625 - TERAVISTA SEC 8, BLOCK 2, LOT 20
Legal Subdivision	TERAVISTA SEC 8
Legal Block	2
Legal Lot Number	20
Jurisdiction	WILLIAMSON TX
Township / Civil Division	ROUND ROCK-GEORGETOWN
Census Block Group	4
Census Block	4007
Census Tract	21510

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.

Owner of Record	2 Individual Names on Record
Mailing Address	4209 FLAT STONE CT, ROUND ROCK, TX 78665-1175
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Husband and Wife

Deeds, Mortgages & Sale History

Date	Document
Jul 10, 2023	Deed of Trust, Mortgage · Conventional Mortgage RANDOLPH BROOKS FCU
Dec 9, 2022	Vendor's Lien, Transfer · VA Mortgage BAY EQUITY LLC
Mar 15, 2019	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Dec 9, 2022 · Amount on Record
Deed Sale	Dec 9, 2022 · Amount on Record
Prior Sale	Feb 7, 2013 · Amount on Record
Deed Document Number	2022135094
Prior Transfer Date	Mar 6, 2019
Prior Transfer Doc	0000021162
Record Updated	Oct 29, 2026

July 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WILLIAMSON TX
Property Address	4209 FLAT STONE CT, ROUND ROCK, TX 78665-1175
Transaction Type	Mortgage
Record Updated	Jul 21, 2023

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4209 FLAT STONE CT, ROUND ROCK, TX 78665-1175
Investor	Possibly a Property Investor

Mortgage

Document Number	0000056707
Date	Jul 10, 2023
Instrument	2023056707

Lender

Name	RANDOLPH BROOKS FCU
Type	Credit Union
Address	UNIVERSAL CITY, TX 78148

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	48 Months
Due	Jul 1, 2027

December 2022: Vendor's Lien, Transfer

Document Type	Vendor's Lien
Jurisdiction	WILLIAMSON TX
Recording Date	Dec 9, 2022
Property Address	4209 FLAT STONE CT, ROUND ROCK, TX 78665-1175
Document Number	0000135094
Map Reference	CAB T SL 358-361
Instrument Date	Dec 5, 2022
Instrument	2022135094
Transaction Type	Transfer
Record Updated	Dec 20, 2022
Title Company	AUSTIN TITLE COMPANY

Transaction

Tax	$0.00
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4209 FLAT STONE CT, ROUND ROCK, TX 78665-1175

Mortgage

Document Number	0000135095
Date	Dec 9, 2022
Instrument	2022135095

Lender

Name	BAY EQUITY LLC
Type	Mortgage Company
Special Notes	Seller Financed

Agreement

Type	VA Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jan 1, 2053

March 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	WILLIAMSON TX
Recording Date	Mar 15, 2019
Property Address	4209 FLAT STONE CT, ROUND ROCK, TX 78665-1175
Document Number	0000021162
Instrument Date	Mar 6, 2019
Instrument	21162
Transaction Type	Transfer
Record Updated	Mar 28, 2019
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Sole Owner
Address	4209 FLAT STONE CT ROUND ROCK TX 786651175, ROUND ROCK, TX 78665-1175

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$4,661.00 (-8.25%)	$369,063 (-5.75%) Land $87,000 Building $282,063	$369,063 (-5.75%) Land $87,000 Building $282,063
2024	$5,080.00 (-10.64%)
2023	$5,685.00 (-38.42%) Homeowner's exemption Senior Citizen's exemption	$391,588 Land $92,000 Building $299,588	$391,588 Land $92,000 Building $299,588
2022	$9,232.00

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 Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	6 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 Risk	Low lower than 97% of the US · lower than 98.3% of Texas
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond ember reach

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 System	WILLIAMSON COUNTY MUD 10 serves 3,513 people · EPA ID TX2460145
Water Source	Purchased surface water from CITY OF ROUND ROCK
Last State Inspection	Oct 2024
Lead	2 ppb (2024–2026) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	1 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.

Internet Providers

Source: FCC Broadband Data Collection, based on 417 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Astound Broadband Cable	1,500 / 50
Spectrum Cable · Fiber in parts of the area	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
AT&T DSL · Fiber in parts of the area	100 / 20

May also be available: VTX Communications.

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