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18212 WHITEWATER CV, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath2,206 sqftBuilt 1996

Property at a Glance

This home is estimated between $350,753 and $879,108, with a best estimate of $781,495. That places the property above the R292598D - Stone Canyon - Weekley & Newmark median of $523,036, in a neighborhood that declined 5.2% over the past year.

Estimated Value Range

$350,753 $879,108
Best Estimate
$781,495
WCAD Value
$686,856
High Confidence

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

Based on 5 comparable properties in R292598D - Stone Canyon - Weekley & Newmark, this home's estimated market value is between $350,753 and $879,108. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

18208 WHITEWATER CV, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,562 sqft Built 1996
Raw Value $566,628
Adjusted Value $781,495

Adjusted +$214,867 for 644 sqft more living space. Net adjustment: +$214,867.

18204 WHITEWATER CV, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,351 sqft Built 1997
Raw Value $594,936
Adjusted Value $879,108

Adjusted +$285,267 for 855 sqft more living space and -$1,095 for being older. Net adjustment: +$284,172.

18217 WHITEWATER CV, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,593 sqft Built 1996
Raw Value $604,982
Adjusted Value $809,506

Adjusted +$204,524 for 613 sqft more living space. Net adjustment: +$204,524.

18213 WHITEWATER CV, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,840 sqft Built 1996
Raw Value $567,017
Adjusted Value $689,131

Adjusted +$122,114 for 366 sqft more living space. Net adjustment: +$122,114.

18200 WHITEWATER CV, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
4 bed 2 bath 2,898 sqft Built 1999
Raw Value $584,921
Adjusted Value $350,753

Adjusted -$230,882 for 692 sqft less living space and -$3,286 for being older. Net adjustment: -$234,168.

The Neighborhood

This home is valued 31.3% above the R292598D - Stone Canyon - Weekley & Newmark median of $523,036. With 952 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 5.2% over the past year.

R292598D - Stone Canyon - Weekley & Newmark

above average
952 Properties
$523,036 Median Value
-5.2% YoY Change
1% Have Pool
99% Have Garage
This Home
$686,856
Median
$523,036

This home is +31.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,727 across all districts. With a homestead exemption claimed, that drops to $10,349 — saving $1,378 per year. That's $862 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%$6,134
Williamson CountyCounty0.3694%$2,538
Fern Bluff MUDMUD0.1800%$1,236
Austin Community Collegespecial0.1034%$710
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$687
Williamson County FM/RdCounty0.0443%$304
Upper Brushy Creek WCIDWater0.0170%$117
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$11,727

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $781,495 would pay approximately $4,878 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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