4100 Hillside Dr, Round Rock, TX 78681 Property Records

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

Property Summary

Property Type	Single Family Home
Details	2 ba · 1,769 sqft · built 1980
Lot Size	0.188 acres (8,211 sqft)
Owner	2 Individual Names on File
Tax Bill	$5,356 (2025)
Flood Zone	Zone X (minimal risk)
APN	`R-16-3465-0010-0002`

Property Details

APN / Parcel Number

Primary APN	`R-16-3465-0010-0002`
Alternative APNs	`R059211` `114559`

Interior

Full Baths	2 Baths
Stories	2 Stories
Building Area	1,769 sqft Living Area
1st Floor Area	1,319 sqft
2nd Floor Area	450 sqft
Flooring	Carpet
Interior Walls	Finished/Painted
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1980
Exterior Material	Wood
Foundation Type	Slab (Mat/Raft)
Roof Type	Gable
Lot Area	8,211 sqft
Garage Area	462 sqft
Parking Spaces	2 Parking Spaces
Porch	Open Porch
Porch Area	200 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Account Number	R059211
Street Address	4100 HILLSIDE DR
City	ROUND ROCK
State	TX
Zip	78681-3669
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	S3258 - BRUSHY CREEK SEC 1 (OR SOUTH), BLOCK 10, LOT 2
Legal Subdivision	BRUSHY CREEK
Legal Block	10
Legal Lot Number	2
Jurisdiction	WILLIAMSON TX
Township / Civil Division	ROUND ROCK-GEORGETOWN
Census Block Group	2
Census Block	2001
Census Tract	20509

Owner

Source: Williamson County records · APN R-16-3465-0010-0002

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 Record	2 Individual Names on File
Mailing Address	4100 HILLSIDE DR, ROUND ROCK, TX 78681-3669
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Apr 28, 1995
Deed Sale	Apr 28, 1995
Deed Document Number	0002716851
Record Updated	Jun 08, 2026

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	Texas
County	Williamson County
Unified School District	Round Rock 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.

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$5,356.00 (+3.94%) Homeowner's exemption	$363,824 (+0.83%) Land $79,500 Building $284,324	$363,824 (+0.83%) Land $79,500 Building $284,324
2023	$5,153.00 (-7.67%) Homeowner's exemption	$360,838 Land $83,000 Building $277,838	$360,838 Land $83,000 Building $277,838
2022	$5,581.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Williamson County (48491C), updated October 5, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 484910205092, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Minimal
500-Year Floodplain	No
Flood Insurance Cost	Premium on Record median of 2 individual NFIP policies nearby
Nearby Flood Policies	2 in force 2 of 2 on primary residences
Nearby Flood Claims	3 (1982–2010)
Claims Outside the SFHA	1 of 3
Most Recent Claim	Sep 2010, rainfall accumulation

Wildfire

Wildfire Risk	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None beyond ember reach

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.