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

129 BONWOOD DR #A, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed4 bath2,138 sqftBuilt 1979

Property at a Glance

This home is estimated between $424,168 and $665,059, with a best estimate of $445,029. That places the property above the R120X - Round Rock West Above 45 - Duplex median of $434,714, in a neighborhood that declined 1.8% over the past year.

Estimated Value Range

$424,168 $665,059
Best Estimate
$445,029
WCAD Value
$459,774
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $424,168 and $665,059. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

1009 WESTWOOD DR, ROUND ROCK, TX 78681
0.13 mi 100% similar Same subdivision
3 bed 2 bath 2,332 sqft Built 1981
Raw Value $468,624
Adjusted Value $424,168

Adjusted -$39,446 for 194 sqft less living space and -$5,010 for being older. Net adjustment: -$44,456.

1001 WESTWOOD DR, ROUND ROCK, TX 78681
0.13 mi 97% similar Same subdivision
2 bed 2 bath 2,274 sqft Built 1982
Raw Value $475,417
Adjusted Value $440,250

Adjusted -$27,653 for 136 sqft less living space and -$7,514 for being older. Net adjustment: -$35,167.

5 bed 3 bath 2,219 sqft Built 1984
Raw Value $694,053
Adjusted Value $665,059

Adjusted -$16,470 for 81 sqft less living space and -$12,524 for being older. Net adjustment: -$28,994.

1105 WESTWOOD DR, ROUND ROCK, TX 78681
0.13 mi 92% similar Same subdivision
2 bed 2 bath 1,666 sqft Built 1979
Raw Value $407,033
Adjusted Value $503,004

Adjusted +$95,971 for 472 sqft more living space. Net adjustment: +$95,971.

3 bed 2 bath 2,304 sqft Built 1976
Raw Value $471,268
Adjusted Value $445,029

Adjusted -$33,753 for 166 sqft less living space and +$7,514 for being newer. Net adjustment: -$26,239.

The Neighborhood

This home is valued 5.8% above the R120X - Round Rock West Above 45 - Duplex median of $434,714. With 295 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 1.8% over the past year.

R120X - Round Rock West Above 45 - Duplex

typical
295 Properties
$434,714 Median Value
-1.8% YoY Change
0% Have Pool
84% Have Garage
This Home
$459,774
Median
$434,714

This home is +5.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,273 across all districts. With a homestead exemption claimed, that drops to $6,937 — saving $1,336 per year. That's $578 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%$4,106
Round RockCity0.3720%$1,710
Williamson CountyCounty0.3694%$1,699
Austin Community Collegespecial0.1034%$475
Williamson County FM/RdCounty0.0443%$204
Upper Brushy Creek WCIDWater0.0170%$78
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,273

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $445,029 would pay approximately $2,778 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