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101 NAUTICAL CIR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

5 bed5 bath2,842 sqftBuilt 2015

Property at a Glance

This home is estimated between $433,500 and $1,156,576, with a best estimate of $971,573. That places the property below the R304615B - HIGHLAND HORIZON PH3 median of $1,296,229, in a neighborhood that declined 3.4% over the past year.

Estimated Value Range

$433,500 $1,156,576
Best Estimate
$971,573
WCAD Value
$1,284,975
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R304615B - HIGHLAND HORIZON PH3. The estimated range of $433,500 and $1,156,576 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 2,173 sqft Built 2025
Raw Value $682,933
Adjusted Value $971,573

Adjusted +$288,640 for 669 sqft more living space. Net adjustment: +$288,640.

4 bed 3 bath 1,833 sqft Built 2015
Raw Value $721,243
Adjusted Value $1,156,576

Adjusted +$435,333 for 1,009 sqft more living space. Net adjustment: +$435,333.

4 bed 3 bath 1,833 sqft Built 2015
Raw Value $706,626
Adjusted Value $1,141,959

Adjusted +$435,333 for 1,009 sqft more living space. Net adjustment: +$435,333.

3 bed 2 bath 3,052 sqft Built 1999
Raw Value $524,104
Adjusted Value $433,500

Adjusted -$90,604 for 210 sqft less living space. Net adjustment: -$90,604.

4 bed 2 bath 2,381 sqft Built 1997
Raw Value $435,931
Adjusted Value $634,829

Adjusted +$198,898 for 461 sqft more living space. Net adjustment: +$198,898.

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
$1,284,975
Median
$1,296,229

This home is -0.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $25,752 across all districts. With a homestead exemption claimed, that drops to $24,265 — saving $1,487 per year. That's $2,022 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%$11,476
Brushy Creek MUDMUD0.3868%$4,971
Williamson CountyCounty0.3694%$4,747
Austin Community Collegespecial0.1034%$1,329
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$1,285
Brushy Creek MUD Defined AreaMUD0.0900%$1,156
Williamson County FM/RdCounty0.0443%$570
Upper Brushy Creek WCIDWater0.0170%$218
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$25,752

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $971,573 would pay approximately $6,065 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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