Beta Williamson County, TX only — data and coverage are limited during early access.

2901 DIEGO DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath2,516 sqftBuilt 2018

Property at a Glance

This home is estimated between $416,132 and $1,022,661, with a best estimate of $563,459. That places the property above the R491507D - PALOMA LAKE PLANTATION, GRANDHAVEN median of $499,831, in a neighborhood that declined 1.7% over the past year.

Estimated Value Range

$416,132 $1,022,661
Best Estimate
$563,459
WCAD Value
$497,811
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 $416,132 and $1,022,661 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 2,470 sqft Built 2013
Raw Value $828,410
Adjusted Value $860,320

Adjusted +$10,031 for 46 sqft more living space and +$21,879 for being newer. Net adjustment: +$31,910.

4 bed 4 bath 2,328 sqft Built 2015
Raw Value $459,370
Adjusted Value $513,495

Adjusted +$40,998 for 188 sqft more living space and +$13,127 for being newer. Net adjustment: +$54,125.

4 bed 2 bath 2,740 sqft Built 2018
Raw Value $464,980
Adjusted Value $416,132

Adjusted -$48,848 for 224 sqft less living space. Net adjustment: -$48,848.

4 bed 3 bath 2,382 sqft Built 2002
Raw Value $923,426
Adjusted Value $1,022,661

Adjusted +$29,222 for 134 sqft more living space and +$70,013 for being newer. Net adjustment: +$99,235.

2930 DIEGO DR, ROUND ROCK, TX 78665
0.00 mi 97% similar Same subdivision
3 bed 2 bath 1,847 sqft Built 2017
Raw Value $413,193
Adjusted Value $563,459

Adjusted +$145,890 for 669 sqft more living space and +$4,376 for being newer. Net adjustment: +$150,266.

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
$497,811
Median
$499,831

This home is -0.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,457 across all districts. With a homestead exemption claimed, that drops to $8,115 — saving $1,342 per year. That's $676 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%$4,446
Paloma Lakes MUD #1MUD0.3725%$1,854
Williamson CountyCounty0.3694%$1,839
Austin Community Collegespecial0.1034%$515
Williamson County ESD #9 - Round RockESD0.0999%$497
Williamson County FM/RdCounty0.0443%$221
Upper Brushy Creek WCIDWater0.0170%$85
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8997%$9,457

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $563,459 would pay approximately $3,517 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.

View full property details