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18117 WHITEWATER CV, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,459 sqftBuilt 1999

Property at a Glance

This home is estimated between $438,451 and $850,360, with a best estimate of $810,266. 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

$438,451 $850,360
Best Estimate
$810,266
WCAD Value
$514,878
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 $438,451 and $850,360. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

18121 WHITEWATER CV, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,891 sqft Built 1997
Raw Value $618,565
Adjusted Value $810,266

Adjusted +$189,510 for 568 sqft more living space and +$2,191 for being newer. Net adjustment: +$191,701.

18113 WHITEWATER CV, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,850 sqft Built 1999
Raw Value $644,795
Adjusted Value $847,985

Adjusted +$203,190 for 609 sqft more living space. Net adjustment: +$203,190.

18109 WHITEWATER CV, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 2,898 sqft Built 1997
Raw Value $592,620
Adjusted Value $448,341

Adjusted -$146,470 for 439 sqft less living space and +$2,191 for being newer. Net adjustment: -$144,279.

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 $438,451

Adjusted -$146,470 for 439 sqft less living space. Net adjustment: -$146,470.

18105 WHITEWATER CV, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,973 sqft Built 1997
Raw Value $686,018
Adjusted Value $850,360

Adjusted +$162,151 for 486 sqft more living space and +$2,191 for being newer. Net adjustment: +$164,342.

The Neighborhood

This home is valued 1.6% below the R292598D - Stone Canyon - Weekley & Newmark median of $523,036. That positions it competitively for buyers comparing within the neighborhood. 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
$514,878
Median
$523,036

This home is -1.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,790 across all districts. With a homestead exemption claimed, that drops to $7,445 — saving $1,345 per year. That's $620 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%$4,598
Williamson CountyCounty0.3694%$1,902
Fern Bluff MUDMUD0.1800%$927
Austin Community Collegespecial0.1034%$532
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$515
Williamson County FM/RdCounty0.0443%$228
Upper Brushy Creek WCIDWater0.0170%$88
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$8,790

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $810,266 would pay approximately $5,058 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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