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3930 BONNIE LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,804 sqftBuilt 2003

Property at a Glance

This home is estimated between $217,049 and $391,108, with a best estimate of $268,768. 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

$217,049 $391,108
Best Estimate
$268,768
WCAD Value
$322,061
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 $217,049 and $391,108. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3932 BONNIE LN, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,816 sqft Built 2002
Raw Value $319,515
Adjusted Value $312,625

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

1555 LORSON LOOP, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 2,278 sqft Built 2003
Raw Value $326,802
Adjusted Value $217,049

Adjusted -$109,753 for 474 sqft less living space. Net adjustment: -$109,753.

1557 LORSON LOOP, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,578 sqft Built 2003
Raw Value $338,779
Adjusted Value $391,108

Adjusted +$52,329 for 226 sqft more living space. Net adjustment: +$52,329.

1559 LORSON LOOP, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,977 sqft Built 2002
Raw Value $312,936
Adjusted Value $268,768

Adjusted -$40,057 for 173 sqft less living space and -$4,111 for being older. Net adjustment: -$44,168.

3926 BONNIE LN, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 2,272 sqft Built 2003
Raw Value $326,552
Adjusted Value $218,188

Adjusted -$108,364 for 468 sqft less living space. Net adjustment: -$108,364.

The Neighborhood

This home is valued 1.8% 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
$322,061
Median
$328,056

This home is -1.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,795 across all districts. With a homestead exemption claimed, that drops to $4,485 — saving $1,310 per year. That's $374 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%$2,876
Round RockCity0.3720%$1,198
Williamson CountyCounty0.3694%$1,190
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%$5,795

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $268,768 would pay approximately $1,678 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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