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

1500 WINDSONG TRL, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,278 sqftBuilt 1984

Property at a Glance

This home is estimated between $255,840 and $317,441, with a best estimate of $279,573. 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

$255,840 $317,441
Best Estimate
$279,573
WCAD Value
$285,878
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 $255,840 and $317,441 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,324 sqft Built 1978
Raw Value $265,935
Adjusted Value $255,840

Adjusted -$9,664 for 46 sqft less living space and -$431 for being older. Net adjustment: -$10,095.

3 bed 2 bath 1,228 sqft Built 1983
Raw Value $261,666
Adjusted Value $272,099

Adjusted +$10,505 for 50 sqft more living space and -$72 for being older. Net adjustment: +$10,433.

3 bed 2 bath 1,204 sqft Built 1983
Raw Value $287,862
Adjusted Value $303,337

Adjusted +$15,547 for 74 sqft more living space and -$72 for being older. Net adjustment: +$15,475.

3 bed 2 bath 1,291 sqft Built 1995
Raw Value $281,514
Adjusted Value $279,573

Adjusted -$2,731 for 13 sqft less living space and +$790 for being newer. Net adjustment: -$1,941.

3 bed 2 bath 1,329 sqft Built 1977
Raw Value $328,659
Adjusted Value $317,441

Adjusted -$10,715 for 51 sqft less living space and -$503 for being older. Net adjustment: -$11,218.

The Neighborhood

This home is valued 8.4% below the R604482H - KENSINGTON / WINDY TERRACE 1985 AND OLDER median of $312,111. That positions it competitively for buyers comparing within the neighborhood. 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
$285,878
Median
$312,111

This home is -8.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,144 across all districts. With a homestead exemption claimed, that drops to $3,841 — saving $1,303 per year. That's $320 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%$2,553
Round RockCity0.3720%$1,063
Williamson CountyCounty0.3694%$1,056
Austin Community Collegespecial0.1034%$296
Williamson County FM/RdCounty0.0443%$127
Upper Brushy Creek WCIDWater0.0170%$49
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,144

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $279,573 would pay approximately $1,745 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