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5803 LUCCA LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,348 sqftBuilt 2019

Property at a Glance

This home is estimated between $273,433 and $467,266, with a best estimate of $435,727. That places the property above the H121413C - SIENA median of $406,354, in a neighborhood that declined 5.4% over the past year.

Estimated Value Range

$273,433 $467,266
Best Estimate
$435,727
WCAD Value
$408,511
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 $273,433 and $467,266. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

5715 ARBIA LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,887 sqft Built 2016
Raw Value $380,697
Adjusted Value $273,433

Adjusted -$113,950 for 539 sqft less living space and +$6,686 for being newer. Net adjustment: -$107,264.

5810 LUCCA LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,528 sqft Built 2018
Raw Value $334,847
Adjusted Value $299,022

Adjusted -$38,054 for 180 sqft less living space and +$2,229 for being newer. Net adjustment: -$35,825.

3 bed 2 bath 1,288 sqft Built 2020
Raw Value $456,810
Adjusted Value $467,266

Adjusted +$12,685 for 60 sqft more living space and -$2,229 for being older. Net adjustment: +$10,456.

6293 MANTALCINO LN, ROUND ROCK, TX 78665
0.00 mi 99% similar Same subdivision
3 bed 2 bath 897 sqft Built 2018
Raw Value $367,277
Adjusted Value $464,852

Adjusted +$95,346 for 451 sqft more living space and +$2,229 for being newer. Net adjustment: +$97,575.

4 bed 2 bath 1,881 sqft Built 2010
Raw Value $528,350
Adjusted Value $435,727

Adjusted -$112,681 for 533 sqft less living space and +$20,058 for being newer. Net adjustment: -$92,623.

The Neighborhood

This home is in line with the H121413C - SIENA median of $406,354. Note that values in this subdivision declined 5.4% over the past year.

H121413C - SIENA

typical
1,611 Properties
$406,354 Median Value
-5.4% YoY Change
1% Have Pool
100% Have Garage
This Home
$408,511
Median
$406,354

This home is +0.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,403 across all districts. With a homestead exemption claimed, that drops to $7,641 — saving $1,762 per year. That's $637 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
Hutto ISDSchool1.2052%$4,923
Siena MUD #1MUD0.5250%$2,145
Williamson CountyCounty0.3694%$1,509
Williamson County ESD #3 - HuttoESD0.1000%$409
Williamson County FM/RdCounty0.0443%$181
EWC Higher Ed Centerspecial0.0409%$167
Upper Brushy Creek WCIDWater0.0170%$69
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$9,403

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $435,727 would pay approximately $2,720 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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