Beta Williamson County, TX only — data and coverage are limited during early access.

18204 WHITEWATER CV, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,351 sqftBuilt 1997

Property at a Glance

This home is estimated between $402,684 and $575,895, with a best estimate of $497,324. 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

$402,684 $575,895
Best Estimate
$497,324
WCAD Value
$594,936
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 $402,684 and $575,895. 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 $497,324

Adjusted -$70,399 for 211 sqft less living space and +$1,095 for being newer. Net adjustment: -$69,304.

18212 WHITEWATER CV, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 2,206 sqft Built 1996
Raw Value $686,856
Adjusted Value $402,684

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

18120 WHITEWATER CV, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,346 sqft Built 1998
Raw Value $575,322
Adjusted Value $575,895

Adjusted +$1,668 for 5 sqft more living space and -$1,095 for being older. Net adjustment: +$573.

18205 WHITEWATER CV, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,720 sqft Built 1997
Raw Value $679,833
Adjusted Value $556,718

Adjusted -$123,115 for 369 sqft less living space. Net adjustment: -$123,115.

18213 WHITEWATER CV, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,840 sqft Built 1996
Raw Value $567,017
Adjusted Value $404,960

Adjusted -$163,152 for 489 sqft less living space and +$1,095 for being newer. Net adjustment: -$162,057.

The Neighborhood

This home is valued 13.7% 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
$594,936
Median
$523,036

This home is +13.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,157 across all districts. With a homestead exemption claimed, that drops to $8,797 — saving $1,360 per year. That's $733 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%$5,313
Williamson CountyCounty0.3694%$2,198
Fern Bluff MUDMUD0.1800%$1,071
Austin Community Collegespecial0.1034%$615
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$595
Williamson County FM/RdCounty0.0443%$264
Upper Brushy Creek WCIDWater0.0170%$101
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$10,157

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $497,324 would pay approximately $3,104 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.

View full property details