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104 NAUTICAL CIR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

5 bed5 bath2,711 sqftBuilt 2015

Property at a Glance

This home is estimated between $376,980 and $1,100,056, with a best estimate of $915,053. 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

$376,980 $1,100,056
Best Estimate
$915,053
WCAD Value
$1,253,414
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 $376,980 and $1,100,056 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 $915,053

Adjusted +$232,120 for 538 sqft more living space. Net adjustment: +$232,120.

4 bed 3 bath 1,833 sqft Built 2015
Raw Value $721,243
Adjusted Value $1,100,056

Adjusted +$378,813 for 878 sqft more living space. Net adjustment: +$378,813.

4 bed 3 bath 1,833 sqft Built 2015
Raw Value $706,626
Adjusted Value $1,085,439

Adjusted +$378,813 for 878 sqft more living space. Net adjustment: +$378,813.

4 bed 2 bath 2,381 sqft Built 1997
Raw Value $435,931
Adjusted Value $578,309

Adjusted +$142,378 for 330 sqft more living space. Net adjustment: +$142,378.

3 bed 2 bath 3,052 sqft Built 1999
Raw Value $524,104
Adjusted Value $376,980

Adjusted -$147,124 for 341 sqft less living space. Net adjustment: -$147,124.

The Neighborhood

This home is valued 3.3% 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
$1,253,414
Median
$1,296,229

This home is -3.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $25,120 across all districts. With a homestead exemption claimed, that drops to $23,638 — saving $1,482 per year. That's $1,970 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%$11,194
Brushy Creek MUDMUD0.3868%$4,849
Williamson CountyCounty0.3694%$4,631
Austin Community Collegespecial0.1034%$1,296
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$1,253
Brushy Creek MUD Defined AreaMUD0.0900%$1,128
Williamson County FM/RdCounty0.0443%$556
Upper Brushy Creek WCIDWater0.0170%$213
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$25,120

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $915,053 would pay approximately $5,712 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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