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428 VALONA LOOP, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,129 sqftBuilt 2005

Property at a Glance

This home is estimated between $506,462 and $609,128, with a best estimate of $516,025. That places the property above the R212505E - BRUSHY CREEK SEC 4 & 5 median of $455,574, in a neighborhood that appreciated 1.7% over the past year.

Estimated Value Range

$506,462 $609,128
Best Estimate
$516,025
WCAD Value
$432,374
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 $506,462 and $609,128. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

222 VALONA LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,512 sqft Built 2007
Raw Value $374,170
Adjusted Value $508,093

Adjusted +$159,039 for 617 sqft more living space and -$25,116 for being older. Net adjustment: +$133,923.

3 bed 2 bath 2,195 sqft Built 2004
Raw Value $598,191
Adjusted Value $593,737

Adjusted -$17,012 for 66 sqft less living space and +$12,558 for being newer. Net adjustment: -$4,454.

423 VALONA LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,790 sqft Built 2006
Raw Value $534,305
Adjusted Value $609,128

Adjusted +$87,381 for 339 sqft more living space and -$12,558 for being older. Net adjustment: +$74,823.

220 VALONA LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,613 sqft Built 2005
Raw Value $383,020
Adjusted Value $516,025

Adjusted +$133,005 for 516 sqft more living space. Net adjustment: +$133,005.

414 VALONA LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,633 sqft Built 2006
Raw Value $391,170
Adjusted Value $506,462

Adjusted +$127,850 for 496 sqft more living space and -$12,558 for being older. Net adjustment: +$115,292.

The Neighborhood

This home is valued 5.1% below the R212505E - BRUSHY CREEK SEC 4 & 5 median of $455,574. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 1.7% over the past year.

R212505E - BRUSHY CREEK SEC 4 & 5

typical
154 Properties
$455,574 Median Value
+1.7% YoY Change
0% Have Pool
100% Have Garage
This Home
$432,374
Median
$455,574

This home is -5.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,276 across all districts. With a homestead exemption claimed, that drops to $6,946 — saving $1,330 per year. That's $579 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%$3,862
Brushy Creek MUDMUD0.3868%$1,673
Williamson CountyCounty0.3694%$1,597
Austin Community Collegespecial0.1034%$447
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$432
Williamson County FM/RdCounty0.0443%$192
Upper Brushy Creek WCIDWater0.0170%$74
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$8,276

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $516,025 would pay approximately $3,221 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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