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3039 ISABELLA LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath1,799 sqftBuilt 2016

Property at a Glance

This home is estimated between $307,380 and $524,282, with a best estimate of $360,886. That places the property below the R491607C - PALOMA LAKE DREES /TAYLOR median of $579,346, in a neighborhood that declined 5.0% over the past year.

Estimated Value Range

$307,380 $524,282
Best Estimate
$360,886
WCAD Value
$569,821
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 $307,380 and $524,282. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

4 bed 3 bath 1,851 sqft Built 2012
Raw Value $547,227
Adjusted Value $524,282

Adjusted -$12,131 for 52 sqft less living space and -$10,814 for being older. Net adjustment: -$22,945.

3042 ISABELLA LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,903 sqft Built 2016
Raw Value $564,924
Adjusted Value $307,380

Adjusted -$257,544 for 1,104 sqft less living space. Net adjustment: -$257,544.

3019 ISABELLA LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,462 sqft Built 2017
Raw Value $512,679
Adjusted Value $360,716

Adjusted -$154,666 for 663 sqft less living space and +$2,703 for being newer. Net adjustment: -$151,963.

3018 ISABELLA LN, ROUND ROCK, TX 78665
0.00 mi 98% similar Same subdivision
3 bed 2 bath 2,380 sqft Built 2016
Raw Value $496,423
Adjusted Value $360,886

Adjusted -$135,537 for 581 sqft less living space. Net adjustment: -$135,537.

4 bed 2 bath 1,881 sqft Built 2010
Raw Value $528,350
Adjusted Value $493,000

Adjusted -$19,129 for 82 sqft less living space and -$16,221 for being older. Net adjustment: -$35,350.

The Neighborhood

This home is valued 1.6% below the R491607C - PALOMA LAKE DREES /TAYLOR median of $579,346. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 5.0% over the past year.

R491607C - PALOMA LAKE DREES /TAYLOR

typical
431 Properties
$579,346 Median Value
-5.0% YoY Change
0% Have Pool
100% Have Garage
This Home
$569,821
Median
$579,346

This home is -1.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,825 across all districts. With a homestead exemption claimed, that drops to $9,469 — saving $1,356 per year. That's $789 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%$5,089
Paloma Lakes MUD #1MUD0.3725%$2,123
Williamson CountyCounty0.3694%$2,105
Austin Community Collegespecial0.1034%$589
Williamson County ESD #9 - Round RockESD0.0999%$569
Williamson County FM/RdCounty0.0443%$253
Upper Brushy Creek WCIDWater0.0170%$97
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8997%$10,825

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $360,886 would pay approximately $2,253 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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