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1552 TONIA LOOP, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,280 sqftBuilt 2006

Property at a Glance

This home is estimated between $207,157 and $353,874, with a best estimate of $316,333. 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

$207,157 $353,874
Best Estimate
$316,333
WCAD Value
$435,725
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 $207,157 and $353,874. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1548 TONIA LOOP, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,746 sqft Built 2006
Raw Value $315,058
Adjusted Value $207,157

Adjusted -$107,901 for 466 sqft less living space. Net adjustment: -$107,901.

1503 LORSON LOOP, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,029 sqft Built 1999
Raw Value $313,768
Adjusted Value $343,107

Adjusted +$58,118 for 251 sqft more living space and -$28,779 for being older. Net adjustment: +$29,339.

1529 TONIA LOOP, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,388 sqft Built 2006
Raw Value $324,624
Adjusted Value $299,617

Adjusted -$25,007 for 108 sqft less living space. Net adjustment: -$25,007.

1540 TONIA LOOP, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,520 sqft Built 2006
Raw Value $371,904
Adjusted Value $316,333

Adjusted -$55,571 for 240 sqft less living space. Net adjustment: -$55,571.

1505 LORSON LOOP, ROUND ROCK, TX 78665
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,293 sqft Built 1999
Raw Value $385,663
Adjusted Value $353,874

Adjusted -$3,010 for 13 sqft less living space and -$28,779 for being older. Net adjustment: -$31,789.

The Neighborhood

This home is valued 32.8% 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

above average
197 Properties
$328,056 Median Value
-4.7% YoY Change
0% Have Pool
100% Have Garage
This Home
$435,725
Median
$328,056

This home is +32.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,840 across all districts. With a homestead exemption claimed, that drops to $6,509 — saving $1,331 per year. That's $542 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%$3,891
Round RockCity0.3720%$1,621
Williamson CountyCounty0.3694%$1,610
Austin Community Collegespecial0.1034%$451
Williamson County FM/RdCounty0.0443%$193
Upper Brushy Creek WCIDWater0.0170%$74
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,840

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $316,333 would pay approximately $1,975 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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