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1524 TONIA LOOP, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,564 sqftBuilt 2009

Property at a Glance

This home is estimated between $251,535 and $496,628, with a best estimate of $264,077. That places the property below the R409599G - STONEY BROOK - ALL SECTIONS median of $328,056, in a neighborhood that declined 4.7% over the past year.

Estimated Value Range

$251,535 $496,628
Best Estimate
$264,077
WCAD Value
$367,551
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $251,535 and $496,628. More comparables in the same subdivision would strengthen this estimate.

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 $251,535

Adjusted -$42,141 for 182 sqft less living space and -$12,334 for being older. Net adjustment: -$54,475.

1520 TONIA LOOP, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,576 sqft Built 2008
Raw Value $379,268
Adjusted Value $372,378

Adjusted -$2,779 for 12 sqft less living space and -$4,111 for being older. Net adjustment: -$6,890.

4 bed 2 bath 1,559 sqft Built 1997
Raw Value $544,806
Adjusted Value $496,628

Adjusted +$1,158 for 5 sqft more living space and -$49,336 for being older. Net adjustment: -$48,178.

1516 TONIA LOOP, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,725 sqft Built 2007
Raw Value $308,945
Adjusted Value $263,443

Adjusted -$37,279 for 161 sqft less living space and -$8,223 for being older. Net adjustment: -$45,502.

1532 TONIA LOOP, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
4 bed 3 bath 1,744 sqft Built 2004
Raw Value $326,311
Adjusted Value $264,077

Adjusted -$41,678 for 180 sqft less living space and -$20,556 for being older. Net adjustment: -$62,234.

The Neighborhood

This home is valued 12.0% above the R409599G - STONEY BROOK - ALL SECTIONS median of $328,056. With 197 homes in the subdivision, the property sits in the upper tier. 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
$367,551
Median
$328,056

This home is +12.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,613 across all districts. With a homestead exemption claimed, that drops to $5,295 — saving $1,318 per year. That's $441 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%$3,283
Round RockCity0.3720%$1,367
Williamson CountyCounty0.3694%$1,358
Austin Community Collegespecial0.1034%$380
Williamson County FM/RdCounty0.0443%$163
Upper Brushy Creek WCIDWater0.0170%$62
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,613

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $264,077 would pay approximately $1,648 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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