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18108 WHITEWATER CV, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,823 sqftBuilt 1995

Property at a Glance

This home is estimated between $231,761 and $731,185, with a best estimate of $393,613. That places the property below the R292598D - Stone Canyon - Weekley & Newmark median of $523,036, in a neighborhood that declined 5.2% over the past year.

Estimated Value Range

$231,761 $731,185
Best Estimate
$393,613
WCAD Value
$626,742
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 $231,761 and $731,185. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

18104 WHITEWATER CV, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 2,204 sqft Built 1995
Raw Value $474,829
Adjusted Value $347,710

Adjusted -$127,119 for 381 sqft less living space. Net adjustment: -$127,119.

18112 WHITEWATER CV, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,926 sqft Built 1996
Raw Value $429,073
Adjusted Value $393,613

Adjusted -$34,365 for 103 sqft less living space and -$1,095 for being older. Net adjustment: -$35,460.

18105 WHITEWATER CV, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,973 sqft Built 1997
Raw Value $686,018
Adjusted Value $633,780

Adjusted -$50,047 for 150 sqft less living space and -$2,191 for being older. Net adjustment: -$52,238.

18109 WHITEWATER CV, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
4 bed 2 bath 2,898 sqft Built 1997
Raw Value $592,620
Adjusted Value $231,761

Adjusted -$358,668 for 1,075 sqft less living space and -$2,191 for being older. Net adjustment: -$360,859.

18120 WHITEWATER CV, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,346 sqft Built 1998
Raw Value $575,322
Adjusted Value $731,185

Adjusted +$159,149 for 477 sqft more living space and -$3,286 for being older. Net adjustment: +$155,863.

The Neighborhood

This home is valued 19.8% 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

above average
952 Properties
$523,036 Median Value
-5.2% YoY Change
1% Have Pool
99% Have Garage
This Home
$626,742
Median
$523,036

This home is +19.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,700 across all districts. With a homestead exemption claimed, that drops to $9,334 — saving $1,366 per year. That's $778 per month a buyer should budget. The assessed value increased +5.5% vs the subdivision average of -5.2%. This above-average increase gives a protest opportunity score of 65 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$5,597
Williamson CountyCounty0.3694%$2,315
Fern Bluff MUDMUD0.1800%$1,128
Austin Community Collegespecial0.1034%$648
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$627
Williamson County FM/RdCounty0.0443%$278
Upper Brushy Creek WCIDWater0.0170%$107
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$10,700
65 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $393,613 would pay approximately $2,457 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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