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

2122 HILTON HEAD DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed3 bath2,438 sqftBuilt 2000

Property at a Glance

This home is estimated between $780,421 and $1,040,042, with a best estimate of $860,012. That places the property below 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

$780,421 $1,040,042
Best Estimate
$860,012
WCAD Value
$918,247
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 $780,421 and $1,040,042. 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 $897,202

Adjusted -$108,104 for 309 sqft less living space and -$1,462 for being older. Net adjustment: -$109,566.

2136 HILTON HEAD DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,311 sqft Built 1999
Raw Value $997,073
Adjusted Value $1,040,042

Adjusted +$44,431 for 127 sqft more living space and -$1,462 for being older. Net adjustment: +$42,969.

2150 HILTON HEAD DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,454 sqft Built 2000
Raw Value $786,019
Adjusted Value $780,421

Adjusted -$5,598 for 16 sqft less living space. Net adjustment: -$5,598.

2148 HILTON HEAD DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,349 sqft Built 1999
Raw Value $809,750
Adjusted Value $839,425

Adjusted +$31,137 for 89 sqft more living space and -$1,462 for being older. Net adjustment: +$29,675.

2130 HILTON HEAD DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,983 sqft Built 2003
Raw Value $696,443
Adjusted Value $860,012

Adjusted +$159,182 for 455 sqft more living space and +$4,387 for being newer. Net adjustment: +$163,569.

The Neighborhood

This home is in line with the R549699C - Forest Creek Sec 14,20,21,26-30,33,34 median of $910,927. Note that values in this subdivision declined 3.1% over the past year.

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

typical
271 Properties
$910,927 Median Value
-3.1% YoY Change
1% Have Pool
99% Have Garage
This Home
$918,247
Median
$910,927

This home is +0.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $16,522 across all districts. With a homestead exemption claimed, that drops to $15,102 — saving $1,420 per year. That's $1,259 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%$8,201
Round RockCity0.3720%$3,416
Williamson CountyCounty0.3694%$3,392
Austin Community Collegespecial0.1034%$949
Williamson County FM/RdCounty0.0443%$407
Upper Brushy Creek WCIDWater0.0170%$156
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$16,522

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $860,012 would pay approximately $5,368 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