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8018 BRIENNE DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,327 sqftBuilt 2000

Property at a Glance

This home is estimated between $311,331 and $547,356, with a best estimate of $349,611. That places the property below the R222592G - CAT HOLLOW ALL SECTIONS R4 median of $451,685, in a neighborhood that declined 6.9% over the past year.

Estimated Value Range

$311,331 $547,356
Best Estimate
$349,611
WCAD Value
$549,421
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 $311,331 and $547,356. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

16709 DORMAN DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,584 sqft Built 1995
Raw Value $381,657
Adjusted Value $349,611

Adjusted -$69,374 for 257 sqft less living space and +$37,328 for being newer. Net adjustment: -$32,046.

16829 LUCKENWALD DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,585 sqft Built 1997
Raw Value $383,881
Adjusted Value $336,634

Adjusted -$69,644 for 258 sqft less living space and +$22,397 for being newer. Net adjustment: -$47,247.

16716 TOMCAT DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,675 sqft Built 1995
Raw Value $367,941
Adjusted Value $311,331

Adjusted -$93,938 for 348 sqft less living space and +$37,328 for being newer. Net adjustment: -$56,610.

102 NORTH FIELD ST, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 940 sqft Built 2002
Raw Value $457,821
Adjusted Value $547,356

Adjusted +$104,466 for 387 sqft more living space and -$14,931 for being older. Net adjustment: +$89,535.

4 bed 2 bath 1,186 sqft Built 1994
Raw Value $407,186
Adjusted Value $490,041

Adjusted +$38,061 for 141 sqft more living space and +$44,794 for being newer. Net adjustment: +$82,855.

The Neighborhood

This home is valued 21.6% above the R222592G - CAT HOLLOW ALL SECTIONS R4 median of $451,685. With 1,233 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 6.9% over the past year.

R222592G - CAT HOLLOW ALL SECTIONS R4

above average
1,233 Properties
$451,685 Median Value
-6.9% YoY Change
1% Have Pool
100% Have Garage
This Home
$549,421
Median
$451,685

This home is +21.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,517 across all districts. With a homestead exemption claimed, that drops to $9,165 — saving $1,352 per year. That's $764 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%$4,907
Brushy Creek MUDMUD0.3868%$2,125
Williamson CountyCounty0.3694%$2,030
Austin Community Collegespecial0.1034%$568
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$549
Williamson County FM/RdCounty0.0443%$244
Upper Brushy Creek WCIDWater0.0170%$93
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$10,517

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $349,611 would pay approximately $2,182 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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