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2851 DIEGO CT, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

5 bed4 bath2,174 sqftBuilt 2014

Property at a Glance

This home is estimated between $364,110 and $715,941, with a best estimate of $594,545. 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

$364,110 $715,941
Best Estimate
$594,545
WCAD Value
$609,507
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 $364,110 and $715,941. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

5 bed 4 bath 2,404 sqft Built 2010
Raw Value $748,595
Adjusted Value $715,941

Adjusted -$50,157 for 230 sqft less living space and +$17,503 for being newer. Net adjustment: -$32,654.

5 bed 4 bath 2,034 sqft Built 2017
Raw Value $601,798
Adjusted Value $619,201

Adjusted +$30,530 for 140 sqft more living space and -$13,127 for being older. Net adjustment: +$17,403.

2732 MADELENA CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,921 sqft Built 2017
Raw Value $552,500
Adjusted Value $594,545

Adjusted +$55,172 for 253 sqft more living space and -$13,127 for being older. Net adjustment: +$42,045.

2728 MADELENA CT, ROUND ROCK, TX 78665
0.00 mi 99% similar Same subdivision
3 bed 2 bath 2,270 sqft Built 2016
Raw Value $482,521
Adjusted Value $452,834

Adjusted -$20,935 for 96 sqft less living space and -$8,752 for being older. Net adjustment: -$29,687.

2843 DIEGO CT, ROUND ROCK, TX 78665
0.00 mi 99% similar Same subdivision
4 bed 3 bath 3,000 sqft Built 2014
Raw Value $544,238
Adjusted Value $364,110

Adjusted -$180,128 for 826 sqft less living space. Net adjustment: -$180,128.

The Neighborhood

This home is valued 21.9% above the R491507D - PALOMA LAKE PLANTATION, GRANDHAVEN median of $499,831. With 695 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 1.7% over the past year.

R491507D - PALOMA LAKE PLANTATION, GRANDHAVEN

above average
695 Properties
$499,831 Median Value
-1.7% YoY Change
1% Have Pool
100% Have Garage
This Home
$609,507
Median
$499,831

This home is +21.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,579 across all districts. With a homestead exemption claimed, that drops to $10,216 — saving $1,363 per year. That's $851 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%$5,444
Paloma Lakes MUD #1MUD0.3725%$2,270
Williamson CountyCounty0.3694%$2,252
Austin Community Collegespecial0.1034%$630
Williamson County ESD #9 - Round RockESD0.0999%$609
Williamson County FM/RdCounty0.0443%$270
Upper Brushy Creek WCIDWater0.0170%$104
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8997%$11,579

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $594,545 would pay approximately $3,711 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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