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3648 WINDHILL LOOP, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath721 sqftBuilt 1999

Property at a Glance

This home is estimated between $261,804 and $354,183, with a best estimate of $321,418. 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

$261,804 $354,183
Best Estimate
$321,418
WCAD Value
$365,657
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 $261,804 and $354,183. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $321,418

Adjusted -$58,833 for 289 sqft less living space. Net adjustment: -$58,833.

3622 WINDHILL LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 743 sqft Built 1997
Raw Value $346,807
Adjusted Value $339,526

Adjusted -$4,479 for 22 sqft less living space and -$2,802 for being older. Net adjustment: -$7,281.

3626 WINDHILL LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 718 sqft Built 1999
Raw Value $306,610
Adjusted Value $307,221

Adjusted +$611 for 3 sqft more living space. Net adjustment: +$611.

3634 WINDHILL LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 761 sqft Built 1998
Raw Value $363,727
Adjusted Value $354,183

Adjusted -$8,143 for 40 sqft less living space and -$1,401 for being older. Net adjustment: -$9,544.

3644 WINDHILL LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 913 sqft Built 2000
Raw Value $299,489
Adjusted Value $261,804

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

The Neighborhood

This home is in line with the R107503F - PRESERVE AT STONE OAK - PH 3 & 4 median of $368,194. Note that values in this subdivision declined 10.9% over the past year.

R107503F - PRESERVE AT STONE OAK - PH 3 & 4

typical
1,045 Properties
$368,194 Median Value
-10.9% YoY Change
1% Have Pool
99% Have Garage
This Home
$365,657
Median
$368,194

This home is -0.7% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,579 across all districts. With a homestead exemption claimed, that drops to $5,261 — saving $1,318 per year. That's $438 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%$3,266
Round RockCity0.3720%$1,360
Williamson CountyCounty0.3694%$1,351
Austin Community Collegespecial0.1034%$378
Williamson County FM/RdCounty0.0443%$162
Upper Brushy Creek WCIDWater0.0170%$62
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,579

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $321,418 would pay approximately $2,006 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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