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1555 LORSON LOOP, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,278 sqftBuilt 2003

Property at a Glance

This home is estimated between $414,074 and $502,432, with a best estimate of $431,814. 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

$414,074 $502,432
Best Estimate
$431,814
WCAD Value
$326,802
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 $414,074 and $502,432. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

1553 LORSON LOOP, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,802 sqft Built 2003
Raw Value $318,920
Adjusted Value $429,136

Adjusted +$110,216 for 476 sqft more living space. Net adjustment: +$110,216.

1557 LORSON LOOP, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,578 sqft Built 2003
Raw Value $338,779
Adjusted Value $500,861

Adjusted +$162,082 for 700 sqft more living space. Net adjustment: +$162,082.

3 bed 2 bath 2,419 sqft Built 2006
Raw Value $434,388
Adjusted Value $414,074

Adjusted -$32,648 for 141 sqft less living space and +$12,334 for being newer. Net adjustment: -$20,314.

3928 BONNIE LN, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
4 bed 3 bath 2,409 sqft Built 2003
Raw Value $532,765
Adjusted Value $502,432

Adjusted -$30,333 for 131 sqft less living space. Net adjustment: -$30,333.

3930 BONNIE LN, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,804 sqft Built 2003
Raw Value $322,061
Adjusted Value $431,814

Adjusted +$109,753 for 474 sqft more living space. Net adjustment: +$109,753.

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
$326,802
Median
$328,056

This home is -0.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,880 across all districts. With a homestead exemption claimed, that drops to $4,569 — saving $1,311 per year. That's $381 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%$2,919
Round RockCity0.3720%$1,216
Williamson CountyCounty0.3694%$1,207
Austin Community Collegespecial0.1034%$338
Williamson County FM/RdCounty0.0443%$145
Upper Brushy Creek WCIDWater0.0170%$56
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,880

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $431,814 would pay approximately $2,695 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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