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3400 LUMINOSO LN W, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,384 sqftBuilt 2004

Property at a Glance

This home is estimated between $254,663 and $760,811, with a best estimate of $530,468. 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

$254,663 $760,811
Best Estimate
$530,468
WCAD Value
$627,680
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R102606C - SENDERO SPRINGS / BEHREN'S RANCH R5. The estimated range of $254,663 and $760,811 should be treated as a rough guide.

Comparable Properties (5)

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 $760,811

Adjusted -$267,489 for 723 sqft less living space and -$5,521 for being older. Net adjustment: -$273,010.

3 bed 2 bath 1,460 sqft Built 2002
Raw Value $288,302
Adjusted Value $254,663

Adjusted -$28,118 for 76 sqft less living space and -$5,521 for being older. Net adjustment: -$33,639.

3404 CORTINA LN, ROUND ROCK, TX 78681
0.00 mi 98% similar Same subdivision
4 bed 3 bath 2,039 sqft Built 2005
Raw Value $770,039
Adjusted Value $530,468

Adjusted -$242,331 for 655 sqft less living space and +$2,760 for being newer. Net adjustment: -$239,571.

4 bed 2 bath 1,561 sqft Built 1996
Raw Value $606,480
Adjusted Value $518,912

Adjusted -$65,485 for 177 sqft less living space and -$22,083 for being older. Net adjustment: -$87,568.

3 bed 2 bath 1,240 sqft Built 2002
Raw Value $497,553
Adjusted Value $545,308

Adjusted +$53,276 for 144 sqft more living space and -$5,521 for being older. Net adjustment: +$47,755.

The Neighborhood

This home is valued 16.3% below the R102606C - SENDERO SPRINGS / BEHREN'S RANCH R5 median of $750,158. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 0.3% over the past year.

R102606C - SENDERO SPRINGS / BEHREN'S RANCH R5

below average
1,049 Properties
$750,158 Median Value
+0.3% YoY Change
1% Have Pool
99% Have Garage
This Home
$627,680
Median
$750,158

This home is -16.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $11,643 across all districts. With a homestead exemption claimed, that drops to $10,280 — saving $1,363 per year. That's $857 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%$5,432
Brushy Creek MUDMUD0.3868%$2,353
Williamson CountyCounty0.3694%$2,247
Austin Community Collegespecial0.1034%$629
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$608
Williamson County FM/RdCounty0.0443%$270
Upper Brushy Creek WCIDWater0.0170%$103
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$11,643

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $530,468 would pay approximately $3,311 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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