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304 SOUTHERN CARINA DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed4 bath3,628 sqftBuilt 2015

Property at a Glance

This home is estimated between $795,745 and $1,613,131, with a best estimate of $1,317,428. 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

$795,745 $1,613,131
Best Estimate
$1,317,428
WCAD Value
$1,173,909
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R304615B - HIGHLAND HORIZON PH3. The estimated range of $795,745 and $1,613,131 should be treated as a rough guide.

Comparable Properties (5)

308 SOUTHERN CARINA DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
5 bed 5 bath 2,711 sqft Built 2016
Raw Value $1,217,491
Adjusted Value $1,613,131

Adjusted +$395,640 for 917 sqft more living space. Net adjustment: +$395,640.

4 bed 2 bath 3,110 sqft Built 2000
Raw Value $572,254
Adjusted Value $795,745

Adjusted +$223,491 for 518 sqft more living space. Net adjustment: +$223,491.

4 bed 3 bath 2,219 sqft Built 2007
Raw Value $904,649
Adjusted Value $1,512,562

Adjusted +$607,913 for 1,409 sqft more living space. Net adjustment: +$607,913.

4 bed 3 bath 1,916 sqft Built 2014
Raw Value $562,011
Adjusted Value $1,300,653

Adjusted +$738,642 for 1,712 sqft more living space. Net adjustment: +$738,642.

4 bed 3 bath 1,916 sqft Built 2016
Raw Value $578,786
Adjusted Value $1,317,428

Adjusted +$738,642 for 1,712 sqft more living space. Net adjustment: +$738,642.

The Neighborhood

This home is valued 9.4% below the R304615B - HIGHLAND HORIZON PH3 median of $1,296,229. That positions it competitively for buyers comparing within the neighborhood. 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
$1,173,909
Median
$1,296,229

This home is -9.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $23,526 across all districts. With a homestead exemption claimed, that drops to $22,059 — saving $1,467 per year. That's $1,838 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%$10,484
Brushy Creek MUDMUD0.3868%$4,541
Williamson CountyCounty0.3694%$4,337
Austin Community Collegespecial0.1034%$1,214
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$1,174
Brushy Creek MUD Defined AreaMUD0.0900%$1,057
Williamson County FM/RdCounty0.0443%$520
Upper Brushy Creek WCIDWater0.0170%$200
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$23,526

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,317,428 would pay approximately $8,223 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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