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2015 WINDSONG TRL, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,519 sqftBuilt 1985

Property at a Glance

This home is estimated between $292,766 and $371,318, with a best estimate of $309,156. That places the property below the R604482H - KENSINGTON / WINDY TERRACE 1985 AND OLDER median of $312,111, in a neighborhood that declined 9.7% over the past year.

Estimated Value Range

$292,766 $371,318
Best Estimate
$309,156
WCAD Value
$310,491
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R604482H - KENSINGTON / WINDY TERRACE 1985 AND OLDER. The estimated range of $292,766 and $371,318 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,523 sqft Built 2019
Raw Value $313,105
Adjusted Value $314,707

Adjusted -$840 for 4 sqft less living space and +$2,442 for being newer. Net adjustment: +$1,602.

3 bed 2 bath 1,328 sqft Built 2014
Raw Value $329,108
Adjusted Value $371,318

Adjusted +$40,127 for 191 sqft more living space and +$2,083 for being newer. Net adjustment: +$42,210.

3 bed 2 bath 1,706 sqft Built 2016
Raw Value $346,217
Adjusted Value $309,156

Adjusted -$39,287 for 187 sqft less living space and +$2,226 for being newer. Net adjustment: -$37,061.

3 bed 2 bath 1,673 sqft Built 2018
Raw Value $337,292
Adjusted Value $307,308

Adjusted -$32,354 for 154 sqft less living space and +$2,370 for being newer. Net adjustment: -$29,984.

3 bed 2 bath 1,746 sqft Built 2015
Raw Value $338,303
Adjusted Value $292,766

Adjusted -$47,691 for 227 sqft less living space and +$2,154 for being newer. Net adjustment: -$45,537.

The Neighborhood

This home is in line with the R604482H - KENSINGTON / WINDY TERRACE 1985 AND OLDER median of $312,111. Note that values in this subdivision declined 9.7% over the past year.

R604482H - KENSINGTON / WINDY TERRACE 1985 AND OLDER

typical
459 Properties
$312,111 Median Value
-9.7% YoY Change
2% Have Pool
94% Have Garage
This Home
$310,491
Median
$312,111

This home is -0.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,587 across all districts. With a homestead exemption claimed, that drops to $4,279 — saving $1,308 per year. That's $357 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%$2,773
Round RockCity0.3720%$1,155
Williamson CountyCounty0.3694%$1,147
Austin Community Collegespecial0.1034%$321
Williamson County FM/RdCounty0.0443%$138
Upper Brushy Creek WCIDWater0.0170%$53
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,587

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $309,156 would pay approximately $1,930 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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