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15 BRENDA LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,762 sqftBuilt 1976

Property at a Glance

This home is estimated between $541,914 and $1,020,714, with a best estimate of $851,793. That places the property above the R451581F - Jackie Thomison Sub median of $825,132, in a neighborhood that declined 11.3% over the past year.

Estimated Value Range

$541,914 $1,020,714
Best Estimate
$851,793
WCAD Value
$347,881
High Confidence

Based on 5 comparable properties(5 in the same subdivision)

Based on 5 comparable properties in R451581F - Jackie Thomison Sub, this home's estimated market value is between $541,914 and $1,020,714. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

13 BRENDA LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,430 sqft Built 1976
Raw Value $797,482
Adjusted Value $541,914

Adjusted -$255,568 for 668 sqft less living space. Net adjustment: -$255,568.

7 BRENDA LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,136 sqft Built 1977
Raw Value $994,804
Adjusted Value $851,793

Adjusted -$143,087 for 374 sqft less living space and +$76 for being newer. Net adjustment: -$143,011.

23 BRENDA LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,440 sqft Built 1987
Raw Value $1,279,274
Adjusted Value $1,020,714

Adjusted -$259,393 for 678 sqft less living space and +$833 for being newer. Net adjustment: -$258,560.

12 BRENDA LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,183 sqft Built 1977
Raw Value $1,162,077
Adjusted Value $1,001,084

Adjusted -$161,069 for 421 sqft less living space and +$76 for being newer. Net adjustment: -$160,993.

18 BRENDA LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,716 sqft Built 1982
Raw Value $656,518
Adjusted Value $674,571

Adjusted +$17,599 for 46 sqft more living space and +$454 for being newer. Net adjustment: +$18,053.

The Neighborhood

This home is valued 57.8% below the R451581F - Jackie Thomison Sub median of $825,132. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 11.3% over the past year.

R451581F - Jackie Thomison Sub

outlier low
25 Properties
$825,132 Median Value
-11.3% YoY Change
0% Have Pool
52% Have Garage
This Home
$347,881
Median
$825,132

This home is -57.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,313 across all districts. With a homestead exemption claimed, that drops to $3,998 — saving $1,315 per year. That's $333 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%$3,107
Williamson CountyCounty0.3694%$1,285
Austin Community Collegespecial0.1034%$360
Williamson County ESD #9 - Round RockESD0.0999%$348
Williamson County FM/RdCounty0.0443%$154
Upper Brushy Creek WCIDWater0.0170%$59
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$5,313

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $851,793 would pay approximately $5,317 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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