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

1501 WHIRLWIND TRL, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath1,005 sqftBuilt 1993

Property at a Glance

This home is estimated between $121,773 and $358,022, with a best estimate of $217,710. That places the property below the R602494H - Greenlawn Place median of $314,129, in a neighborhood that declined 4.3% over the past year.

Estimated Value Range

$121,773 $358,022
Best Estimate
$217,710
WCAD Value
$345,723
High Confidence

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

Based on 5 comparable properties in R602494H - Greenlawn Place, this home's estimated market value is between $121,773 and $358,022. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1606 SOUTHWESTERN TRL, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 831 sqft Built 1995
Raw Value $299,441
Adjusted Value $336,393

Adjusted +$43,560 for 174 sqft more living space and -$6,608 for being older. Net adjustment: +$36,952.

1705 WHIRLWIND TRL, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 776 sqft Built 1994
Raw Value $303,997
Adjusted Value $358,022

Adjusted +$57,329 for 229 sqft more living space and -$3,304 for being older. Net adjustment: +$54,025.

1603 SOUTHWESTERN TRL, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,265 sqft Built 1995
Raw Value $289,408
Adjusted Value $217,710

Adjusted -$65,090 for 260 sqft less living space and -$6,608 for being older. Net adjustment: -$71,698.

2209 SOUTHEASTERN TRL, ROUND ROCK, TX 78664
0.00 mi 99% similar Same subdivision
4 bed 2 bath 1,751 sqft Built 1997
Raw Value $321,746
Adjusted Value $121,773

Adjusted -$186,757 for 746 sqft less living space and -$13,216 for being older. Net adjustment: -$199,973.

1902 SOUTHEASTERN TRL, ROUND ROCK, TX 78664
0.00 mi 97% similar Same subdivision
3 bed 2 bath 1,539 sqft Built 1998
Raw Value $305,880
Adjusted Value $155,675

Adjusted -$133,684 for 534 sqft less living space and -$16,521 for being older. Net adjustment: -$150,205.

The Neighborhood

This home is valued 10.1% above the R602494H - Greenlawn Place median of $314,129. With 219 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 4.3% over the past year.

R602494H - Greenlawn Place

typical
219 Properties
$314,129 Median Value
-4.3% YoY Change
1% Have Pool
99% Have Garage
This Home
$345,723
Median
$314,129

This home is +10.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,221 across all districts. With a homestead exemption claimed, that drops to $4,906 — saving $1,315 per year. That's $409 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%$3,088
Round RockCity0.3720%$1,286
Williamson CountyCounty0.3694%$1,277
Austin Community Collegespecial0.1034%$357
Williamson County FM/RdCounty0.0443%$153
Upper Brushy Creek WCIDWater0.0170%$59
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,221

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $217,710 would pay approximately $1,359 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