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408 SOUTHERN CARINA DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed4 bath3,980 sqftBuilt 2016

Property at a Glance

This home is estimated between $1,499,839 and $2,010,478, with a best estimate of $1,655,747. That places the property above the R304615B - HIGHLAND HORIZON PH3 median of $1,296,229, in a neighborhood that declined 3.4% over the past year.

Estimated Value Range

$1,499,839 $2,010,478
Best Estimate
$1,655,747
WCAD Value
$1,288,659
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R304615B - HIGHLAND HORIZON PH3. The estimated range of $1,499,839 and $2,010,478 should be treated as a rough guide.

Comparable Properties (5)

400 SOUTHERN CARINA DR, ROUND ROCK, TX 78681
0.00 mi 98% similar Same subdivision
5 bed 4 bath 2,404 sqft Built 2017
Raw Value $1,330,513
Adjusted Value $2,010,478

Adjusted +$679,965 for 1,576 sqft more living space. Net adjustment: +$679,965.

404 SOUTHERN CARINA DR, ROUND ROCK, TX 78681
0.00 mi 98% similar Same subdivision
6 bed 6 bath 3,126 sqft Built 2016
Raw Value $1,346,533
Adjusted Value $1,714,991

Adjusted +$368,458 for 854 sqft more living space. Net adjustment: +$368,458.

4 bed 3 bath 2,249 sqft Built 2014
Raw Value $752,999
Adjusted Value $1,499,839

Adjusted +$746,840 for 1,731 sqft more living space. Net adjustment: +$746,840.

4 bed 3 bath 1,793 sqft Built 2014
Raw Value $712,166
Adjusted Value $1,655,747

Adjusted +$943,581 for 2,187 sqft more living space. Net adjustment: +$943,581.

4 bed 3 bath 1,779 sqft Built 2014
Raw Value $689,370
Adjusted Value $1,638,991

Adjusted +$949,621 for 2,201 sqft more living space. Net adjustment: +$949,621.

The Neighborhood

This home is in line with the R304615B - HIGHLAND HORIZON PH3 median of $1,296,229. Note that values in this subdivision declined 3.4% over the past year.

R304615B - HIGHLAND HORIZON PH3

typical
27 Properties
$1,296,229 Median Value
-3.4% YoY Change
0% Have Pool
100% Have Garage
This Home
$1,288,659
Median
$1,296,229

This home is -0.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $25,826 across all districts. With a homestead exemption claimed, that drops to $24,338 — saving $1,488 per year. That's $2,028 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%$11,509
Brushy Creek MUDMUD0.3868%$4,985
Williamson CountyCounty0.3694%$4,761
Austin Community Collegespecial0.1034%$1,332
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$1,289
Brushy Creek MUD Defined AreaMUD0.0900%$1,160
Williamson County FM/RdCounty0.0443%$571
Upper Brushy Creek WCIDWater0.0170%$219
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$25,826

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,655,747 would pay approximately $10,335 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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