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3404 LUMINOSO LN W, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,090 sqftBuilt 2004

Property at a Glance

This home is estimated between $379,312 and $1,022,010, with a best estimate of $791,668. That places the property above the R102606C - SENDERO SPRINGS / BEHREN'S RANCH R5 median of $750,158, in a neighborhood that appreciated 0.3% over the past year.

Estimated Value Range

$379,312 $1,022,010
Best Estimate
$791,668
WCAD Value
$826,860
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $379,312 and $1,022,010. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

4 bed 3 bath 1,976 sqft Built 2008
Raw Value $853,729
Adjusted Value $906,948

Adjusted +$42,177 for 114 sqft more living space and +$11,042 for being newer. Net adjustment: +$53,219.

3406 CORTINA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,806 sqft Built 2005
Raw Value $1,052,217
Adjusted Value $790,078

Adjusted -$264,899 for 716 sqft less living space and +$2,760 for being newer. Net adjustment: -$262,139.

3401 LUMINOSO LN W, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,107 sqft Built 2002
Raw Value $1,033,821
Adjusted Value $1,022,010

Adjusted -$6,290 for 17 sqft less living space and -$5,521 for being older. Net adjustment: -$11,811.

3404 CORTINA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,039 sqft Built 2005
Raw Value $770,039
Adjusted Value $791,668

Adjusted +$18,869 for 51 sqft more living space and +$2,760 for being newer. Net adjustment: +$21,629.

3401 CORTINA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 3,159 sqft Built 2005
Raw Value $772,051
Adjusted Value $379,312

Adjusted -$395,499 for 1,069 sqft less living space and +$2,760 for being newer. Net adjustment: -$392,739.

The Neighborhood

This home is valued 10.2% above the R102606C - SENDERO SPRINGS / BEHREN'S RANCH R5 median of $750,158. With 1,049 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 0.3% over the past year.

R102606C - SENDERO SPRINGS / BEHREN'S RANCH R5

typical
1,049 Properties
$750,158 Median Value
+0.3% YoY Change
1% Have Pool
99% Have Garage
This Home
$826,860
Median
$750,158

This home is +10.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,545 across all districts. With a homestead exemption claimed, that drops to $13,154 — saving $1,391 per year. That's $1,096 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%$6,786
Brushy Creek MUDMUD0.3868%$2,939
Williamson CountyCounty0.3694%$2,807
Austin Community Collegespecial0.1034%$786
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$760
Williamson County FM/RdCounty0.0443%$337
Upper Brushy Creek WCIDWater0.0170%$129
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$14,545

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $791,668 would pay approximately $4,942 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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