16801 Mouse Trap Dr, Round Rock, TX 78681 Property Records

Williamson County property record for 16801 Mouse Trap Dr, Round Rock, TX 78681

Property Summary

Property Type	Single Family Home
Details	2 ba · 3,234 sqft · built 1996
Lot Size	0.306 acres (13,333 sqft)
Owner	2 Individual Names on File
Last Sale	$598,400 (Sep 2021)
Tax Bill	$11,347 (2025)
Deeds & Mortgages	Sep 2021 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`R-16-3565-000B-0001`

Property Details

APN / Parcel Number

Primary APN	`R-16-3565-000B-0001`
Alternative APNs	`R335278` `172520`

Interior

Full Baths	2 Baths
Stories	1 Story
Building Area	3,234 sqft Living Area
1st Floor Area	3,234 sqft
Flooring	Carpet
Interior Walls	Wallboard/Drywall
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1996
Effective Year Built	Effective 2009
Exterior Material	Stone
Roof Type	Hip
Lot Area	13,333 sqft (0.306 acres)
Garage Area	418 sqft
Parking Spaces	2 Parking Spaces
Porch	Open Porch
Porch Area	166 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Heating Fuel	Gas
Sewer	Connected

Location & Zoning

Account Number	R163565000B0001
Street Address	16801 MOUSE TRAP DR
City	ROUND ROCK
State	TX
Zip	78681-5408
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	S5747 - CAT HOLLOW SEC 13, BLOCK B, LOT 1
Legal Subdivision	CAT HOLLOW SEC 13
Legal Block	B
Legal Lot Number	1
Jurisdiction	WILLIAMSON TX
Township / Civil Division	ROUND ROCK-GEORGETOWN
Census Block Group	1
Census Block	1022
Census Tract	20515

Owner

16801 Mouse Trap Dr is owned and occupied by two individuals who bought it in September 2021.

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

Owner of Record	2 Individual Names on File
Mailing Address	13217 HYMEADOW CIR, AUSTIN, TX 78729-1760
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Individual(s)

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 13, 2021 · Amount on File
Deed Sale	Sep 13, 2021 · Amount on File
Deed Document Number	2021138857
Prior Transfer Date	Sep 10, 2021
Prior Transfer Doc	0000138857
Record Updated	Oct 29, 2026

September 2021: Vendor's Lien, Transfer

Document Type	Vendor's Lien
Jurisdiction	WILLIAMSON TX
Recording Date	Sep 13, 2021
Property Address	16801 MOUSE TRAP DR, ROUND ROCK, TX 78681-5408
Document Number	0000138857
Map Reference	CAB K SL 277
Instrument Date	Sep 10, 2021
Instrument	2021138857
Transaction Type	Transfer
Record Updated	Sep 28, 2021
Title Company	TEXAS NATIONAL TITLE

Transaction

Tax	$0.00
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	112 CROSSFIRE CV, 112, LIBERTY HILL, TX 78642-2328

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	13217 HYMEADOW CIR, AUSTIN, TX 78729-1760

Mortgage

Document Number	0000138858
Date	Sep 13, 2021
Instrument	2021138858

Lender

Name	AAXY LLC
Type	Mortgage Company
Special Notes	Seller Financed

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Oct 1, 2051

Tax Assessment & Valuation

The 2025 property tax bill for 16801 Mouse Trap Dr was $11,347 with a homeowner's exemption, down 3% from the year before.

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	$11,347.00 (-3%) Homeowner's exemption	$746,841	$751,142 Land $159,000 Building $592,142
2024	$11,698.00 (+4%)
2023	$11,248.00 (-14.81%) Homeowner's exemption	$652,084 Land $160,000 Building $492,084	$652,084 Land $160,000 Building $492,084
2022	$13,204.00

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

Flood

FEMA maps place 16801 Mouse Trap Dr in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective October 5, 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

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

Wildfire

Wildfire risk around 16801 Mouse Trap Dr is low, with less than a 0.01% annual chance of 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	BRUSHY CREEK MUD serves 18,314 people · EPA ID TX2460061
Water Source	Surface water
Last State Inspection	May 2025
Lead	1 ppb (2023–2025) 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 618 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL	5,000 / 5,000
Spectrum Cable	1,000 / 50
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: Astound Broadband, Google Fiber, SOS Communications, VTX Communications, Western Broadband.