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3405 LUMINOSO LN W, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,597 sqftBuilt 2002

Property at a Glance

This home is estimated between $292,534 and $845,136, with a best estimate of $614,793. That places the property below 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

$292,534 $845,136
Best Estimate
$614,793
WCAD Value
$766,242
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $292,534 and $845,136. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3400 LUMINOSO LN W, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,384 sqft Built 2004
Raw Value $627,680
Adjusted Value $712,005

Adjusted +$78,804 for 213 sqft more living space and +$5,521 for being newer. Net adjustment: +$84,325.

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 $845,136

Adjusted -$188,685 for 510 sqft less living space. Net adjustment: -$188,685.

4 bed 2 bath 1,561 sqft Built 1996
Raw Value $606,480
Adjusted Value $603,237

Adjusted +$13,319 for 36 sqft more living space and -$16,562 for being older. Net adjustment: -$3,243.

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 $614,793

Adjusted -$163,527 for 442 sqft less living space and +$8,281 for being newer. Net adjustment: -$155,246.

3 bed 2 bath 1,706 sqft Built 2001
Raw Value $335,621
Adjusted Value $292,534

Adjusted -$40,327 for 109 sqft less living space and -$2,760 for being older. Net adjustment: -$43,087.

The Neighborhood

This home is valued 2.1% 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
$766,242
Median
$750,158

This home is +2.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,011 across all districts. With a homestead exemption claimed, that drops to $12,625 — saving $1,386 per year. That's $1,052 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%$6,537
Brushy Creek MUDMUD0.3868%$2,832
Williamson CountyCounty0.3694%$2,704
Austin Community Collegespecial0.1034%$757
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$732
Williamson County FM/RdCounty0.0443%$324
Upper Brushy Creek WCIDWater0.0170%$124
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$14,011

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $614,793 would pay approximately $3,838 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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