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4400 SANSONE DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed4 bath4,084 sqftBuilt 2017

Property at a Glance

This home is estimated between $973,202 and $1,279,718, with a best estimate of $1,134,173. That places the property above the R421612B - TERAVISTA GATED median of $984,146, in a neighborhood that appreciated 0.5% over the past year.

Estimated Value Range

$973,202 $1,279,718
Best Estimate
$1,134,173
WCAD Value
$979,446
Low Confidence

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

There are 5 comparable properties within range, but none are in R421612B - TERAVISTA GATED. The estimated range of $973,202 and $1,279,718 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 2,482 sqft Built 2016
Raw Value $585,819
Adjusted Value $1,157,954

Adjusted +$572,135 for 1,602 sqft more living space. Net adjustment: +$572,135.

5 bed 3 bath 2,920 sqft Built 2024
Raw Value $557,493
Adjusted Value $973,202

Adjusted +$415,709 for 1,164 sqft more living space. Net adjustment: +$415,709.

4 bed 4 bath 2,053 sqft Built 2025
Raw Value $554,371
Adjusted Value $1,279,718

Adjusted +$725,347 for 2,031 sqft more living space. Net adjustment: +$725,347.

4 bed 3 bath 2,248 sqft Built 2021
Raw Value $473,942
Adjusted Value $1,129,647

Adjusted +$655,705 for 1,836 sqft more living space. Net adjustment: +$655,705.

4 bed 3 bath 2,236 sqft Built 2023
Raw Value $474,182
Adjusted Value $1,134,173

Adjusted +$659,991 for 1,848 sqft more living space. Net adjustment: +$659,991.

The Neighborhood

This home is in line with the R421612B - TERAVISTA GATED median of $984,146. The neighborhood appreciated 0.5% over the past year.

R421612B - TERAVISTA GATED

typical
36 Properties
$984,146 Median Value
+0.5% YoY Change
0% Have Pool
100% Have Garage
This Home
$979,446
Median
$984,146

This home is -0.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $18,539 across all districts. With a homestead exemption claimed, that drops to $17,108 — saving $1,431 per year. That's $1,426 per month a buyer should budget. The assessed value increased +8.8% vs the subdivision average of +0.5%. This above-average increase gives a protest opportunity score of 62 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$8,747
Williamson CountyCounty0.3694%$3,619
Williamson County MUD #11MUD0.3656%$3,581
Austin Community Collegespecial0.1034%$1,013
Williamson County ESD #9 - Round RockESD0.0999%$979
Williamson County FM/RdCounty0.0443%$434
Upper Brushy Creek WCIDWater0.0170%$167
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8928%$18,539
62 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,134,173 would pay approximately $7,079 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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