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

3420 DE SOTO LOOP, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,857 sqftBuilt 2015

Property at a Glance

This home is estimated between $348,210 and $622,260, with a best estimate of $390,441. 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

$348,210 $622,260
Best Estimate
$390,441
WCAD Value
$549,582
High Confidence

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

Based on 5 comparable properties in R491507D - PALOMA LAKE PLANTATION, GRANDHAVEN, this home's estimated market value is between $348,210 and $622,260. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

2711 SAINT PAUL RIVERA LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 4 bath 2,098 sqft Built 2015
Raw Value $674,815
Adjusted Value $622,260

Adjusted -$52,555 for 241 sqft less living space. Net adjustment: -$52,555.

2900 SANTA ROSITA DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,365 sqft Built 2014
Raw Value $493,216
Adjusted Value $386,811

Adjusted -$110,781 for 508 sqft less living space and +$4,376 for being newer. Net adjustment: -$106,405.

2952 SANTA ROSITA DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,092 sqft Built 2016
Raw Value $503,270
Adjusted Value $447,647

Adjusted -$51,247 for 235 sqft less living space and -$4,376 for being older. Net adjustment: -$55,623.

2828 SAINT PAUL RIVERA LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,552 sqft Built 2016
Raw Value $504,146
Adjusted Value $348,210

Adjusted -$151,560 for 695 sqft less living space and -$4,376 for being older. Net adjustment: -$155,936.

2852 SAINT PAUL RIVERA LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,331 sqft Built 2014
Raw Value $489,431
Adjusted Value $390,441

Adjusted -$103,366 for 474 sqft less living space and +$4,376 for being newer. Net adjustment: -$98,990.

The Neighborhood

This home is valued 10.0% 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

typical
695 Properties
$499,831 Median Value
-1.7% YoY Change
1% Have Pool
100% Have Garage
This Home
$549,582
Median
$499,831

This home is +10.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,710 across all districts. With a homestead exemption claimed, that drops to $9,358 — saving $1,352 per year. That's $780 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%$4,908
Paloma Lakes MUD #2MUD0.4215%$2,316
Williamson CountyCounty0.3694%$2,030
Austin Community Collegespecial0.1034%$568
Williamson County ESD #9 - Round RockESD0.0999%$549
Williamson County FM/RdCounty0.0443%$244
Upper Brushy Creek WCIDWater0.0170%$93
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9487%$10,710

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $390,441 would pay approximately $2,437 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