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3401 LUMINOSO LN W, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath2,107 sqftBuilt 2002

Property at a Glance

This home is estimated between $425,742 and $900,690, with a best estimate of $801,888. 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

$425,742 $900,690
Best Estimate
$801,888
WCAD Value
$1,033,821
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 $425,742 and $900,690. 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 $900,690

Adjusted +$267,489 for 723 sqft more living space and +$5,521 for being newer. Net adjustment: +$273,010.

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 $801,888

Adjusted -$258,610 for 699 sqft less living space and +$8,281 for being newer. Net adjustment: -$250,329.

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 $803,478

Adjusted +$25,158 for 68 sqft more living space and +$8,281 for being newer. Net adjustment: +$33,439.

4 bed 2 bath 2,090 sqft Built 1996
Raw Value $436,014
Adjusted Value $425,742

Adjusted +$6,290 for 17 sqft more living space and -$16,562 for being older. Net adjustment: -$10,272.

4 bed 2 bath 2,097 sqft Built 1994
Raw Value $625,311
Adjusted Value $606,928

Adjusted +$3,700 for 10 sqft more living space and -$22,083 for being older. Net adjustment: -$18,383.

The Neighborhood

This home is valued 37.8% 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
$1,033,821
Median
$750,158

This home is +37.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $19,789 across all districts. With a homestead exemption claimed, that drops to $18,347 — saving $1,442 per year. That's $1,529 per month a buyer should budget. The assessed value increased +9.6% vs the subdivision average of +0.3%. This above-average increase gives a protest opportunity score of 67 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$9,233
Brushy Creek MUDMUD0.3868%$3,999
Williamson CountyCounty0.3694%$3,819
Austin Community Collegespecial0.1034%$1,069
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$1,034
Williamson County FM/RdCounty0.0443%$458
Upper Brushy Creek WCIDWater0.0170%$176
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$19,789
67 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $801,888 would pay approximately $5,005 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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