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1817 WHIRLWIND TRL, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath650 sqftBuilt 1992

Property at a Glance

This home is estimated between $63,499 and $279,494, with a best estimate of $244,217. 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

$63,499 $279,494
Best Estimate
$244,217
WCAD Value
$300,065
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $63,499 and $279,494. More comparables in the same subdivision would strengthen this estimate.

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 $244,217

Adjusted -$45,312 for 181 sqft less living space and -$9,912 for being older. Net adjustment: -$55,224.

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 $265,846

Adjusted -$31,543 for 126 sqft less living space and -$6,608 for being older. Net adjustment: -$38,151.

3 bed 2 bath 616 sqft Built 2004
Raw Value $310,631
Adjusted Value $279,494

Adjusted +$8,512 for 34 sqft more living space and -$39,649 for being older. Net adjustment: -$31,137.

1603 SOUTHWESTERN TRL, ROUND ROCK, TX 78664
0.00 mi 97% similar Same subdivision
3 bed 2 bath 1,265 sqft Built 1995
Raw Value $289,408
Adjusted Value $125,534

Adjusted -$153,962 for 615 sqft less living space and -$9,912 for being older. Net adjustment: -$163,874.

1902 SOUTHEASTERN TRL, ROUND ROCK, TX 78664
0.00 mi 92% similar Same subdivision
3 bed 2 bath 1,539 sqft Built 1998
Raw Value $305,880
Adjusted Value $63,499

Adjusted -$222,556 for 889 sqft less living space and -$19,825 for being older. Net adjustment: -$242,381.

The Neighborhood

This home is valued 4.5% below the R602494H - Greenlawn Place median of $314,129. That positions it competitively for buyers comparing within the neighborhood. 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
$300,065
Median
$314,129

This home is -4.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,399 across all districts. With a homestead exemption claimed, that drops to $4,093 — saving $1,306 per year. That's $341 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%$2,680
Round RockCity0.3720%$1,116
Williamson CountyCounty0.3694%$1,109
Austin Community Collegespecial0.1034%$310
Williamson County FM/RdCounty0.0443%$133
Upper Brushy Creek WCIDWater0.0170%$51
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,399

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $244,217 would pay approximately $1,524 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.

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