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1556 TONIA LOOP, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,909 sqftBuilt 2006

Property at a Glance

This home is estimated between $291,603 and $445,260, with a best estimate of $352,800. 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

$291,603 $445,260
Best Estimate
$352,800
WCAD Value
$321,637
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 $291,603 and $445,260. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1548 TONIA LOOP, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,746 sqft Built 2006
Raw Value $315,058
Adjusted Value $352,800

Adjusted +$37,742 for 163 sqft more living space. Net adjustment: +$37,742.

1501 LORSON LOOP, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
4 bed 3 bath 1,995 sqft Built 1999
Raw Value $487,713
Adjusted Value $439,021

Adjusted -$19,913 for 86 sqft less living space and -$28,779 for being older. Net adjustment: -$48,692.

1533 TONIA LOOP, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,966 sqft Built 2006
Raw Value $304,801
Adjusted Value $291,603

Adjusted -$13,198 for 57 sqft less living space. Net adjustment: -$13,198.

1544 TONIA LOOP, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,176 sqft Built 2006
Raw Value $379,048
Adjusted Value $317,225

Adjusted -$61,823 for 267 sqft less living space. Net adjustment: -$61,823.

1529 TONIA LOOP, ROUND ROCK, TX 78665
0.04 mi 100% similar Same subdivision
3 bed 2 bath 1,388 sqft Built 2006
Raw Value $324,624
Adjusted Value $445,260

Adjusted +$120,636 for 521 sqft more living space. Net adjustment: +$120,636.

The Neighborhood

This home is valued 2.0% below the R409599G - STONEY BROOK - ALL SECTIONS median of $328,056. That positions it competitively for buyers comparing within the neighborhood. 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
$321,637
Median
$328,056

This home is -2.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,787 across all districts. With a homestead exemption claimed, that drops to $4,477 — saving $1,310 per year. That's $373 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%$2,873
Round RockCity0.3720%$1,196
Williamson CountyCounty0.3694%$1,188
Austin Community Collegespecial0.1034%$333
Williamson County FM/RdCounty0.0443%$143
Upper Brushy Creek WCIDWater0.0170%$55
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,787

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $352,800 would pay approximately $2,202 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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