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1532 TONIA LOOP, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath1,744 sqftBuilt 2004

Property at a Glance

This home is estimated between $307,108 and $429,785, with a best estimate of $416,354. That places the property above the R409599G - STONEY BROOK - ALL SECTIONS median of $328,056, in a neighborhood that declined 4.7% over the past year.

Estimated Value Range

$307,108 $429,785
Best Estimate
$416,354
WCAD Value
$326,311
High Confidence

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

Based on 5 comparable properties in R409599G - STONEY BROOK - ALL SECTIONS, this home's estimated market value is between $307,108 and $429,785. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1528 TONIA LOOP, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,746 sqft Built 2006
Raw Value $306,010
Adjusted Value $313,770

Adjusted -$463 for 2 sqft less living space and +$8,223 for being newer. Net adjustment: +$7,760.

3913 BONNIE LN, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,959 sqft Built 2003
Raw Value $475,415
Adjusted Value $421,522

Adjusted -$49,782 for 215 sqft less living space and -$4,111 for being older. Net adjustment: -$53,893.

3911 BONNIE LN, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,643 sqft Built 2004
Raw Value $392,968
Adjusted Value $416,354

Adjusted +$23,386 for 101 sqft more living space. Net adjustment: +$23,386.

1524 TONIA LOOP, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,564 sqft Built 2009
Raw Value $367,551
Adjusted Value $429,785

Adjusted +$41,678 for 180 sqft more living space and +$20,556 for being newer. Net adjustment: +$62,234.

3915 BONNIE LN, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,804 sqft Built 2003
Raw Value $325,112
Adjusted Value $307,108

Adjusted -$13,893 for 60 sqft less living space and -$4,111 for being older. Net adjustment: -$18,004.

The Neighborhood

This home is in line with the R409599G - STONEY BROOK - ALL SECTIONS median of $328,056. Note that values in this subdivision declined 4.7% over the past year.

R409599G - STONEY BROOK - ALL SECTIONS

typical
197 Properties
$328,056 Median Value
-4.7% YoY Change
0% Have Pool
100% Have Garage
This Home
$326,311
Median
$328,056

This home is -0.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,871 across all districts. With a homestead exemption claimed, that drops to $4,561 — saving $1,310 per year. That's $380 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%$2,914
Round RockCity0.3720%$1,214
Williamson CountyCounty0.3694%$1,206
Austin Community Collegespecial0.1034%$337
Williamson County FM/RdCounty0.0443%$145
Upper Brushy Creek WCIDWater0.0170%$55
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,871

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $416,354 would pay approximately $2,599 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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