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3644 WINDHILL LOOP, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath913 sqftBuilt 2000

Property at a Glance

This home is estimated between $353,802 and $403,342, with a best estimate of $359,103. That places the property below the R107503F - PRESERVE AT STONE OAK - PH 3 & 4 median of $368,194, in a neighborhood that declined 10.9% over the past year.

Estimated Value Range

$353,802 $403,342
Best Estimate
$359,103
WCAD Value
$299,489
High Confidence

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

Based on 5 comparable properties in R107503F - PRESERVE AT STONE OAK - PH 3 & 4, this home's estimated market value is between $353,802 and $403,342. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3648 WINDHILL LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 721 sqft Built 1999
Raw Value $365,657
Adjusted Value $403,342

Adjusted +$39,086 for 192 sqft more living space and -$1,401 for being older. Net adjustment: +$37,685.

3606 WINDHILL LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,207 sqft Built 1997
Raw Value $425,748
Adjusted Value $361,696

Adjusted -$59,850 for 294 sqft less living space and -$4,202 for being older. Net adjustment: -$64,052.

3623 WINDHILL LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,225 sqft Built 1997
Raw Value $425,715
Adjusted Value $357,998

Adjusted -$63,515 for 312 sqft less living space and -$4,202 for being older. Net adjustment: -$67,717.

3636 WINDHILL LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,202 sqft Built 1997
Raw Value $416,837
Adjusted Value $353,802

Adjusted -$58,833 for 289 sqft less living space and -$4,202 for being older. Net adjustment: -$63,035.

3607 WINDHILL LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,010 sqft Built 1999
Raw Value $380,251
Adjusted Value $359,103

Adjusted -$19,747 for 97 sqft less living space and -$1,401 for being older. Net adjustment: -$21,148.

The Neighborhood

This home is valued 18.7% below the R107503F - PRESERVE AT STONE OAK - PH 3 & 4 median of $368,194. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 10.9% over the past year.

R107503F - PRESERVE AT STONE OAK - PH 3 & 4

below average
1,045 Properties
$368,194 Median Value
-10.9% YoY Change
1% Have Pool
99% Have Garage
This Home
$299,489
Median
$368,194

This home is -18.7% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,389 across all districts. With a homestead exemption claimed, that drops to $4,083 — saving $1,306 per year. That's $340 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%$2,675
Round RockCity0.3720%$1,114
Williamson CountyCounty0.3694%$1,106
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%$5,389

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $359,103 would pay approximately $2,242 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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