3720 Sandy Brook Dr, Round Rock, TX 78665 Property Records

Williamson County property record for 3720 Sandy Brook Dr, Round Rock, TX 78665

Property Summary

Property Type	Single Family Home
Details	2 ba · 1,914 sqft · built 2005
Lot Size	0.497 acres (21,636 sqft)
Owner	Individual Name on Record
Last Sale	$238,070 (Jun 2023)
Tax Bill	$4,609 (2025)
Deeds & Mortgages	Jul 2026 Line of Credit Jun 2023 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`R-16-5611-000F-0011`

Property Details

APN / Parcel Number

Primary APN	`R-16-5611-000F-0011`
Alternative APNs	`R453193` `254781`

Interior

Full Baths	2 Baths
Stories	1 Story
Building Area	1,914 sqft Living Area
1st Floor Area	1,914 sqft
Flooring	Tile
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 2005
Effective Year Built	Effective 2005
Exterior Material	Stone
Roof Material	Other
Lot Area	21,636 sqft (0.497 acres)
Garage Area	400 sqft
Parking Spaces	2 Parking Spaces

Exterior Amenities

Porch	Open Porch
Porch Area	36 sqft
Patio Area	500 sqft
Utility Building	120 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Account Number	R165611000F0011
Street Address	3720 SANDY BROOK DR
City	ROUND ROCK
State	TX
Zip	78665-1217
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	SF2
Legal Description	S8537 - STONEY BROOK SEC 6, BLOCK F, LOT 11
Legal Subdivision	STONEY BROOK SEC 6
Legal Block	F
Legal Lot Number	11
Jurisdiction	WILLIAMSON TX
Township / Civil Division	ROUND ROCK-GEORGETOWN
Census Block Group	1
Census Block	1002
Census Tract	21515

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	Individual Name on Record
Mailing Address	3720 SANDY BROOK DR, ROUND ROCK, TX 78665-1217
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Single Woman

Deeds, Mortgages & Sale History

Date	Document
Jul 7, 2026	Deed of Trust, Mortgage · Line of Credit BANK OF AMERICA
Jun 20, 2023	Vendor's Lien, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE
Mar 20, 2018	Deed of Trust, Mortgage RANDOLPH BROOKS FCU
Oct 17, 2019	Vendor's Lien, Transfer · Conventional Mortgage REDFIN MORTGAGE LLC

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 20, 2023 · Amount on Record
Deed Sale	Jun 20, 2023 · Amount on Record
Prior Sale	Oct 17, 2019 · Amount on Record
Deed Document Number	202350015
Prior Transfer Date	Oct 14, 2019
Prior Transfer Doc	0000099612
Record Updated	Oct 29, 2026

July 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WILLIAMSON TX
Recording Date	Jul 7, 2026
Property Address	3720 SANDY BROOK DR, ROUND ROCK, TX 78665-1217
Document Number	0000056401
Instrument Date	Jun 30, 2026
Instrument	202656401
Transaction Type	Mortgage
Record Updated	Jul 20, 2026
Title Company	NONE LISTED ON DOCUMENT

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3720 SANDY BROOK DR, ROUND ROCK, TX 78665-1217

Mortgage

Document Number	0000056401,
Date	Jul 7, 2026
Instrument	202656401

Lender

Name	BANK OF AMERICA

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	360 Months
Due	Jun 30, 2056

Interest

Rate	6.48%
Max Rate	-1%

June 2023: Vendor's Lien, Transfer

Document Type	Vendor's Lien
Jurisdiction	WILLIAMSON TX
Recording Date	Jun 20, 2023
Property Address	3720 SANDY BROOK DR, ROUND ROCK, TX 78665-1217
Document Number	0000050015
Map Reference	CAB Y SL 323
Instrument Date	Jun 19, 2023
Instrument	2023050015
Transaction Type	Transfer
Record Updated	Jul 3, 2023
Title Company	HERITAGE TITLE LT, HERITAGE TITLE

Transaction

Tax	$0.00
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3720 SANDY BROOK DR, ROUND ROCK, TX 78665-1217

Mortgage

Document Number	0000050016
Date	Jun 20, 2023
Instrument	2023050016

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company
Special Notes	Seller Financed

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	181 Months
Due	Jul 1, 2038

March 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WILLIAMSON TX
Property Address	3720 SANDY BROOK DR, ROUND ROCK, TX 78665-1217
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000022845
Date	Mar 20, 2018
Instrument	2018022845

Lender

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

Agreement

Amount	Amount Recorded
Term	241 Months
Due	Apr 1, 2038

October 2019: Vendor's Lien, Transfer

Document Type	Vendor's Lien
Jurisdiction	WILLIAMSON TX
Recording Date	Oct 17, 2019
Property Address	3720 SANDY BROOK DR, ROUND ROCK, TX 78665-1217
Document Number	0000099612
Map Reference	CABY SL 323&324
Instrument Date	Oct 14, 2019
Instrument	2019099612
Transaction Type	Transfer
Record Updated	Dec 6, 2021
Title Company	TEXAS NATIONAL TITLE

Transaction

Tax	$0.00
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3720 SANDY BROOK DR, ROUND ROCK, TX 78665-1217

Mortgage

Document Number	0000099613
Date	Oct 17, 2019
Instrument	2019099613

Lender

Name	REDFIN MORTGAGE LLC
Type	Mortgage Company
Special Notes	Seller Financed

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 1, 2049

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$4,609.00 (+186.99%)	$324,578 (-9.65%) Land $82,000 Building $242,578	$324,578 (-9.65%) Land $82,000 Building $242,578
2023	$1,606.00 (-40.43%)	$359,240 (+31.65%) Land $84,000 Building $275,240	$359,240 (+31.65%) Land $84,000 Building $275,240
2022	$2,696.00 Homeowner's exemption Senior Citizen's exemption	$272,868 Land $61,000 Building $211,868	$272,868 Land $61,000 Building $211,868

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	1 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 99.1% of the US · lower than 99.3% 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	CITY OF ROUND ROCK serves 130,662 people · EPA ID TX2460003
Water Source	Surface water
Last State Inspection	Sep 2023
Lead	5 ppb (2021–2023) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None 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 558 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Google Fiber Fiber	8,000 / 8,000
Spectrum Cable	1,000 / 35
Verizon Fixed Wireless	300 / 20
AT&T DSL · Fiber in parts of the area	100 / 20

May also be available: Optimum, SOS Communications.

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