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3112 DIEGO CV, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,621 sqftBuilt 2019

Property at a Glance

This home is estimated between $332,328 and $359,468, with a best estimate of $354,457. 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

$332,328 $359,468
Best Estimate
$354,457
WCAD Value
$504,098
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R491507D - PALOMA LAKE PLANTATION, GRANDHAVEN. The estimated range of $332,328 and $359,468 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,522 sqft Built 2019
Raw Value $337,874
Adjusted Value $359,463

Adjusted +$21,589 for 99 sqft more living space. Net adjustment: +$21,589.

3 bed 2 bath 1,665 sqft Built 2020
Raw Value $346,299
Adjusted Value $332,328

Adjusted -$9,595 for 44 sqft less living space and -$4,376 for being older. Net adjustment: -$13,971.

3 bed 2 bath 1,528 sqft Built 2018
Raw Value $334,811
Adjusted Value $359,468

Adjusted +$20,281 for 93 sqft more living space and +$4,376 for being newer. Net adjustment: +$24,657.

3 bed 2 bath 1,679 sqft Built 2019
Raw Value $356,738
Adjusted Value $344,090

Adjusted -$12,648 for 58 sqft less living space. Net adjustment: -$12,648.

3 bed 2 bath 1,539 sqft Built 2009
Raw Value $292,817
Adjusted Value $354,457

Adjusted +$17,882 for 82 sqft more living space and +$43,758 for being newer. Net adjustment: +$61,640.

The Neighborhood

This home is in line with the R491507D - PALOMA LAKE PLANTATION, GRANDHAVEN median of $499,831. 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
$504,098
Median
$499,831

This home is +0.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,576 across all districts. With a homestead exemption claimed, that drops to $8,233 — saving $1,343 per year. That's $686 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%$4,502
Paloma Lakes MUD #1MUD0.3725%$1,878
Williamson CountyCounty0.3694%$1,862
Austin Community Collegespecial0.1034%$521
Williamson County ESD #9 - Round RockESD0.0999%$504
Williamson County FM/RdCounty0.0443%$223
Upper Brushy Creek WCIDWater0.0170%$86
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8997%$9,576

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $354,457 would pay approximately $2,213 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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