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

8000 TONKINESE DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,030 sqftBuilt 2005

Property at a Glance

This home is estimated between $102,263 and $504,512, with a best estimate of $293,791. 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

$102,263 $504,512
Best Estimate
$293,791
WCAD Value
$461,109
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 $102,263 and $504,512. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

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 $504,512

Adjusted +$24,294 for 90 sqft more living space and +$22,397 for being newer. Net adjustment: +$46,691.

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 $293,791

Adjusted -$149,815 for 555 sqft less living space and +$59,725 for being newer. Net adjustment: -$90,090.

16709 DORMAN DR, ROUND ROCK, TX 78681
0.00 mi 99% similar Same subdivision
3 bed 2 bath 1,584 sqft Built 1995
Raw Value $381,657
Adjusted Value $306,768

Adjusted -$149,545 for 554 sqft less living space and +$74,656 for being newer. Net adjustment: -$74,889.

16716 TOMCAT DR, ROUND ROCK, TX 78681
0.00 mi 98% similar Same subdivision
3 bed 2 bath 1,675 sqft Built 1995
Raw Value $367,941
Adjusted Value $268,487

Adjusted -$174,110 for 645 sqft less living space and +$74,656 for being newer. Net adjustment: -$99,454.

3 bed 1,232 sqft Built 2011
Raw Value $141,391
Adjusted Value $102,263

Adjusted -$54,527 for 202 sqft less living space and -$44,794 for being older and +$60,193 for having a garage. Net adjustment: -$39,128.

The Neighborhood

This home is valued 2.1% 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

typical
1,233 Properties
$451,685 Median Value
-6.9% YoY Change
1% Have Pool
100% Have Garage
This Home
$461,109
Median
$451,685

This home is +2.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,826 across all districts. With a homestead exemption claimed, that drops to $7,491 — saving $1,335 per year. That's $624 per month a buyer should budget. The assessed value increased +1.3% vs the subdivision average of -6.9%. This above-average increase gives a protest opportunity score of 41 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$4,118
Brushy Creek MUDMUD0.3868%$1,784
Williamson CountyCounty0.3694%$1,704
Austin Community Collegespecial0.1034%$477
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$461
Williamson County FM/RdCounty0.0443%$204
Upper Brushy Creek WCIDWater0.0170%$78
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$8,826
41 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $293,791 would pay approximately $1,834 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