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18200 WHITEWATER CV, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath2,898 sqftBuilt 1999

Property at a Glance

This home is estimated between $661,348 and $994,455, with a best estimate of $921,024. 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

$661,348 $994,455
Best Estimate
$921,024
WCAD Value
$584,921
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 $661,348 and $994,455. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

18121 WHITEWATER CV, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,891 sqft Built 1997
Raw Value $618,565
Adjusted Value $956,737

Adjusted +$335,981 for 1,007 sqft more living space and +$2,191 for being newer. Net adjustment: +$338,172.

18117 WHITEWATER CV, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
3 bed 2 bath 2,459 sqft Built 1999
Raw Value $514,878
Adjusted Value $661,348

Adjusted +$146,470 for 439 sqft more living space. Net adjustment: +$146,470.

18112 WHITEWATER CV, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,926 sqft Built 1996
Raw Value $429,073
Adjusted Value $756,662

Adjusted +$324,303 for 972 sqft more living space and +$3,286 for being newer. Net adjustment: +$327,589.

18212 WHITEWATER CV, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
4 bed 2 bath 2,206 sqft Built 1996
Raw Value $686,856
Adjusted Value $921,024

Adjusted +$230,882 for 692 sqft more living space and +$3,286 for being newer. Net adjustment: +$234,168.

18113 WHITEWATER CV, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,850 sqft Built 1999
Raw Value $644,795
Adjusted Value $994,455

Adjusted +$349,660 for 1,048 sqft more living space. Net adjustment: +$349,660.

The Neighborhood

This home is valued 11.8% 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

typical
952 Properties
$523,036 Median Value
-5.2% YoY Change
1% Have Pool
99% Have Garage
This Home
$584,921
Median
$523,036

This home is +11.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,986 across all districts. With a homestead exemption claimed, that drops to $8,628 — saving $1,358 per year. That's $719 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%$5,224
Williamson CountyCounty0.3694%$2,161
Fern Bluff MUDMUD0.1800%$1,053
Austin Community Collegespecial0.1034%$605
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$585
Williamson County FM/RdCounty0.0443%$259
Upper Brushy Creek WCIDWater0.0170%$99
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$9,986

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $921,024 would pay approximately $5,749 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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