Beta Williamson County, TX only — data and coverage are limited during early access.

1527 LORSON LOOP, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath1,688 sqftBuilt 2004

Property at a Glance

This home is estimated between $284,723 and $465,415, with a best estimate of $396,856. 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

$284,723 $465,415
Best Estimate
$396,856
WCAD Value
$393,568
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 $284,723 and $465,415. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1529 LORSON LOOP, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,822 sqft Built 2003
Raw Value $319,861
Adjusted Value $284,723

Adjusted -$31,027 for 134 sqft less living space and -$4,111 for being older. Net adjustment: -$35,138.

3902 BONNIE LN, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
4 bed 3 bath 1,683 sqft Built 2004
Raw Value $395,698
Adjusted Value $396,856

Adjusted +$1,158 for 5 sqft more living space. Net adjustment: +$1,158.

1531 LORSON LOOP, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
4 bed 3 bath 1,180 sqft Built 2002
Raw Value $356,013
Adjusted Value $465,415

Adjusted +$117,625 for 508 sqft more living space and -$8,223 for being older. Net adjustment: +$109,402.

3900 BONNIE LN, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,810 sqft Built 1999
Raw Value $466,894
Adjusted Value $418,089

Adjusted -$28,249 for 122 sqft less living space and -$20,556 for being older. Net adjustment: -$48,805.

3904 BONNIE LN, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,822 sqft Built 2004
Raw Value $320,950
Adjusted Value $289,923

Adjusted -$31,027 for 134 sqft less living space. Net adjustment: -$31,027.

The Neighborhood

This home is valued 20.0% 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

above average
197 Properties
$328,056 Median Value
-4.7% YoY Change
0% Have Pool
100% Have Garage
This Home
$393,568
Median
$328,056

This home is +20.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,081 across all districts. With a homestead exemption claimed, that drops to $5,758 — saving $1,323 per year. That's $480 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%$3,515
Round RockCity0.3720%$1,464
Williamson CountyCounty0.3694%$1,454
Austin Community Collegespecial0.1034%$407
Williamson County FM/RdCounty0.0443%$174
Upper Brushy Creek WCIDWater0.0170%$67
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,081

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $396,856 would pay approximately $2,477 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.

View full property details