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4509 SANSONE DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

5 bed4 bath3,350 sqftBuilt 2013

Property at a Glance

This home is estimated between $780,838 and $1,127,315, with a best estimate of $840,784. That places the property below the R421612B - TERAVISTA GATED median of $984,146, in a neighborhood that appreciated 0.5% over the past year.

Estimated Value Range

$780,838 $1,127,315
Best Estimate
$840,784
WCAD Value
$1,160,709
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R421612B - TERAVISTA GATED. The estimated range of $780,838 and $1,127,315 should be treated as a rough guide.

Comparable Properties (5)

4503 SANSONE DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 3,446 sqft Built 2013
Raw Value $873,640
Adjusted Value $839,355

Adjusted -$34,285 for 96 sqft less living space. Net adjustment: -$34,285.

5 bed 4 bath 2,407 sqft Built 2012
Raw Value $658,016
Adjusted Value $994,797

Adjusted +$336,781 for 943 sqft more living space. Net adjustment: +$336,781.

4 bed 3 bath 2,951 sqft Built 2011
Raw Value $638,340
Adjusted Value $780,838

Adjusted +$142,498 for 399 sqft more living space. Net adjustment: +$142,498.

4 bed 3 bath 2,568 sqft Built 2009
Raw Value $561,502
Adjusted Value $840,784

Adjusted +$279,282 for 782 sqft more living space. Net adjustment: +$279,282.

4 bed 3 bath 2,530 sqft Built 2009
Raw Value $834,462
Adjusted Value $1,127,315

Adjusted +$292,853 for 820 sqft more living space. Net adjustment: +$292,853.

The Neighborhood

This home is valued 17.9% above the R421612B - TERAVISTA GATED median of $984,146. With 36 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 0.5% over the past year.

R421612B - TERAVISTA GATED

above average
36 Properties
$984,146 Median Value
+0.5% YoY Change
0% Have Pool
100% Have Garage
This Home
$1,160,709
Median
$984,146

This home is +17.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $21,970 across all districts. With a homestead exemption claimed, that drops to $20,505 — saving $1,465 per year. That's $1,709 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%$10,366
Williamson CountyCounty0.3694%$4,288
Williamson County MUD #11MUD0.3656%$4,244
Austin Community Collegespecial0.1034%$1,200
Williamson County ESD #9 - Round RockESD0.0999%$1,160
Williamson County FM/RdCounty0.0443%$515
Upper Brushy Creek WCIDWater0.0170%$197
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8928%$21,970

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $840,784 would pay approximately $5,248 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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