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3113 DIEGO CV, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,023 sqftBuilt 2017

Property at a Glance

This home is estimated between $394,546 and $591,469, with a best estimate of $423,003. That places the property below the R491507D - PALOMA LAKE PLANTATION, GRANDHAVEN median of $499,831, in a neighborhood that declined 1.7% over the past year.

Estimated Value Range

$394,546 $591,469
Best Estimate
$423,003
WCAD Value
$436,115
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R491507D - PALOMA LAKE PLANTATION, GRANDHAVEN. The estimated range of $394,546 and $591,469 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,159 sqft Built 2014
Raw Value $416,078
Adjusted Value $399,547

Adjusted -$29,658 for 136 sqft less living space and +$13,127 for being newer. Net adjustment: -$16,531.

3 bed 2 bath 1,919 sqft Built 2016
Raw Value $403,709
Adjusted Value $430,765

Adjusted +$22,680 for 104 sqft more living space and +$4,376 for being newer. Net adjustment: +$27,056.

3 bed 2 bath 2,219 sqft Built 2018
Raw Value $441,664
Adjusted Value $394,546

Adjusted -$42,742 for 196 sqft less living space and -$4,376 for being older. Net adjustment: -$47,118.

3 bed 2 bath 1,679 sqft Built 2019
Raw Value $356,738
Adjusted Value $423,003

Adjusted +$75,017 for 344 sqft more living space and -$8,752 for being older. Net adjustment: +$66,265.

3365 CATALINA CV, ROUND ROCK, TX 78665
0.00 mi 98% similar Same subdivision
5 bed 3 bath 2,381 sqft Built 2019
Raw Value $678,291
Adjusted Value $591,469

Adjusted -$78,070 for 358 sqft less living space and -$8,752 for being older. Net adjustment: -$86,822.

The Neighborhood

This home is valued 12.7% below the R491507D - PALOMA LAKE PLANTATION, GRANDHAVEN median of $499,831. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 1.7% over the past year.

R491507D - PALOMA LAKE PLANTATION, GRANDHAVEN

typical
695 Properties
$499,831 Median Value
-1.7% YoY Change
1% Have Pool
100% Have Garage
This Home
$436,115
Median
$499,831

This home is -12.7% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,285 across all districts. With a homestead exemption claimed, that drops to $6,954 — saving $1,331 per year. That's $580 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%$3,895
Paloma Lakes MUD #1MUD0.3725%$1,625
Williamson CountyCounty0.3694%$1,611
Austin Community Collegespecial0.1034%$451
Williamson County ESD #9 - Round RockESD0.0999%$436
Williamson County FM/RdCounty0.0443%$193
Upper Brushy Creek WCIDWater0.0170%$74
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8997%$8,285

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $423,003 would pay approximately $2,640 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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