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3406 CORTINA LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,806 sqftBuilt 2005

Property at a Glance

This home is estimated between $510,558 and $1,284,150, with a best estimate of $1,053,807. 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

$510,558 $1,284,150
Best Estimate
$1,053,807
WCAD Value
$1,052,217
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 $510,558 and $1,284,150. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

4 bed 3 bath 2,476 sqft Built 2006
Raw Value $933,517
Adjusted Value $1,058,367

Adjusted +$122,090 for 330 sqft more living space and +$2,760 for being newer. Net adjustment: +$124,850.

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 $1,284,150

Adjusted +$258,610 for 699 sqft more living space and -$8,281 for being older. 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 $1,053,807

Adjusted +$283,768 for 767 sqft more living space. Net adjustment: +$283,768.

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 $641,451

Adjusted -$130,600 for 353 sqft less living space. Net adjustment: -$130,600.

3407 LUMINOSO LN W, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 4,299 sqft Built 2004
Raw Value $1,065,685
Adjusted Value $510,558

Adjusted -$552,367 for 1,493 sqft less living space and -$2,760 for being older. Net adjustment: -$555,127.

The Neighborhood

This home is valued 40.3% 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
$1,052,217
Median
$750,158

This home is +40.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $21,088 across all districts. With a homestead exemption claimed, that drops to $19,643 — saving $1,445 per year. That's $1,637 per month a buyer should budget. The assessed value increased +8.5% vs the subdivision average of +0.3%. This above-average increase gives a protest opportunity score of 61 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$9,397
Brushy Creek MUDMUD0.3868%$4,070
Williamson CountyCounty0.3694%$3,887
Austin Community Collegespecial0.1034%$1,088
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$1,052
Brushy Creek MUD Defined AreaMUD0.0900%$947
Williamson County FM/RdCounty0.0443%$466
Upper Brushy Creek WCIDWater0.0170%$179
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$21,088
61 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,053,807 would pay approximately $6,578 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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