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3407 LUMINOSO LN W, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath4,299 sqftBuilt 2004

Property at a Glance

This home is estimated between $1,179,266 and $1,608,934, with a best estimate of $1,545,727. 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

$1,179,266 $1,608,934
Best Estimate
$1,545,727
WCAD Value
$1,065,685
High Confidence

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

Based on 5 comparable properties in R102606C - SENDERO SPRINGS / BEHREN'S RANCH R5, this home's estimated market value is between $1,179,266 and $1,608,934. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $1,607,344

Adjusted +$552,367 for 1,493 sqft more living space and +$2,760 for being newer. Net adjustment: +$555,127.

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 $1,196,578

Adjusted +$421,767 for 1,140 sqft more living space and +$2,760 for being newer. Net adjustment: +$424,527.

3403 CORTINA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 3,369 sqft Built 2006
Raw Value $829,672
Adjusted Value $1,179,266

Adjusted +$344,073 for 930 sqft more living space and +$5,521 for being newer. Net adjustment: +$349,594.

3407 CORTINA LN, ROUND ROCK, TX 78681
0.00 mi 99% similar Same subdivision
4 bed 3 bath 2,356 sqft Built 2005
Raw Value $824,113
Adjusted Value $1,545,727

Adjusted +$718,854 for 1,943 sqft more living space and +$2,760 for being newer. Net adjustment: +$721,614.

3404 CORTINA LN, ROUND ROCK, TX 78681
0.00 mi 96% similar Same subdivision
4 bed 3 bath 2,039 sqft Built 2005
Raw Value $770,039
Adjusted Value $1,608,934

Adjusted +$836,135 for 2,260 sqft more living space and +$2,760 for being newer. Net adjustment: +$838,895.

The Neighborhood

This home is valued 42.1% 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

above average
1,049 Properties
$750,158 Median Value
+0.3% YoY Change
1% Have Pool
99% Have Garage
This Home
$1,065,685
Median
$750,158

This home is +42.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $16,956 across all districts. With a homestead exemption claimed, that drops to $15,542 — saving $1,414 per year. That's $1,295 per month a buyer should budget. The assessed value increased +8.1% vs the subdivision average of +0.3%. This above-average increase gives a protest opportunity score of 59 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$7,911
Brushy Creek MUDMUD0.3868%$3,427
Williamson CountyCounty0.3694%$3,273
Austin Community Collegespecial0.1034%$916
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$886
Williamson County FM/RdCounty0.0443%$393
Upper Brushy Creek WCIDWater0.0170%$151
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$16,956
59 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,545,727 would pay approximately $9,648 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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