Beta Williamson County, TX only — data and coverage are limited during early access.

2121 HILTON HEAD DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath2,994 sqftBuilt 1999

Property at a Glance

This home is estimated between $734,528 and $1,093,181, with a best estimate of $1,011,323. That places the property above the R549699C - Forest Creek Sec 14,20,21,26-30,33,34 median of $910,927, in a neighborhood that declined 3.1% over the past year.

Estimated Value Range

$734,528 $1,093,181
Best Estimate
$1,011,323
WCAD Value
$731,405
High Confidence

Based on 5 comparable properties(5 in the same subdivision)

Based on 5 comparable properties in R549699C - Forest Creek Sec 14,20,21,26-30,33,34, this home's estimated market value is between $734,528 and $1,093,181. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

2129 HILTON HEAD DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,747 sqft Built 1999
Raw Value $1,006,768
Adjusted Value $1,093,181

Adjusted +$86,413 for 247 sqft more living space. Net adjustment: +$86,413.

2131 HILTON HEAD DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,997 sqft Built 1999
Raw Value $735,578
Adjusted Value $734,528

Adjusted -$1,050 for 3 sqft less living space. Net adjustment: -$1,050.

2125 HILTON HEAD DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 3,001 sqft Built 2000
Raw Value $1,012,310
Adjusted Value $1,011,323

Adjusted -$2,449 for 7 sqft less living space and +$1,462 for being newer. Net adjustment: -$987.

2153 HILTON HEAD DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 3,349 sqft Built 1999
Raw Value $1,033,006
Adjusted Value $908,809

Adjusted -$124,197 for 355 sqft less living space. Net adjustment: -$124,197.

2127 HILTON HEAD DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,783 sqft Built 1999
Raw Value $1,003,065
Adjusted Value $1,076,883

Adjusted +$73,818 for 211 sqft more living space. Net adjustment: +$73,818.

The Neighborhood

This home is valued 19.7% below the R549699C - Forest Creek Sec 14,20,21,26-30,33,34 median of $910,927. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 3.1% over the past year.

R549699C - Forest Creek Sec 14,20,21,26-30,33,34

below average
271 Properties
$910,927 Median Value
-3.1% YoY Change
1% Have Pool
99% Have Garage
This Home
$731,405
Median
$910,927

This home is -19.7% below the subdivision median.

Tax Analysis

The estimated annual property tax is $13,160 across all districts. With a homestead exemption claimed, that drops to $11,775 — saving $1,385 per year. That's $981 per month a buyer should budget. The assessed value increased roughly in line with the neighborhood, so a tax protest is unlikely to yield significant savings.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$6,532
Round RockCity0.3720%$2,721
Williamson CountyCounty0.3694%$2,702
Austin Community Collegespecial0.1034%$756
Williamson County FM/RdCounty0.0443%$324
Upper Brushy Creek WCIDWater0.0170%$124
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$13,160

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,011,323 would pay approximately $6,313 per month (principal and interest only, excluding taxes and insurance).

Data sourced from Williamson County Appraisal District (WCAD), Texas Education Agency (TEA), and Federal Reserve Economic Data (FRED). Assessment values reflect the appraisal district's estimate, not market sale prices. Report generated 4/18/2026.

View full property details