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3652 SANDY BROOK DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,035 sqftBuilt 2007

Property at a Glance

This home is estimated between $154,687 and $349,046, with a best estimate of $233,863. That places the property below the R409599G - STONEY BROOK - ALL SECTIONS median of $328,056, in a neighborhood that declined 4.7% over the past year.

Estimated Value Range

$154,687 $349,046
Best Estimate
$233,863
WCAD Value
$349,448
High Confidence

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

Based on 5 comparable properties in R409599G - STONEY BROOK - ALL SECTIONS, this home's estimated market value is between $154,687 and $349,046. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1587 HAYNIE BND, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,552 sqft Built 2006
Raw Value $289,574
Adjusted Value $165,754

Adjusted -$119,709 for 517 sqft less living space and -$4,111 for being older. Net adjustment: -$123,820.

1577 HAYNIE BND, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,220 sqft Built 2007
Raw Value $378,470
Adjusted Value $335,634

Adjusted -$42,836 for 185 sqft less living space. Net adjustment: -$42,836.

1567 HAYNIE BND, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,684 sqft Built 2005
Raw Value $313,183
Adjusted Value $154,687

Adjusted -$150,273 for 649 sqft less living space and -$8,223 for being older. Net adjustment: -$158,496.

3648 SANDY BROOK DR, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,050 sqft Built 2006
Raw Value $356,630
Adjusted Value $349,046

Adjusted -$3,473 for 15 sqft less living space and -$4,111 for being older. Net adjustment: -$7,584.

3644 SANDY BROOK DR, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
3 bed 1,416 sqft Built 2006
Raw Value $326,193
Adjusted Value $233,863

Adjusted -$88,219 for 381 sqft less living space and -$4,111 for being older. Net adjustment: -$92,330.

The Neighborhood

This home is valued 6.5% above the R409599G - STONEY BROOK - ALL SECTIONS median of $328,056. With 197 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 4.7% over the past year.

R409599G - STONEY BROOK - ALL SECTIONS

typical
197 Properties
$328,056 Median Value
-4.7% YoY Change
0% Have Pool
100% Have Garage
This Home
$349,448
Median
$328,056

This home is +6.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,288 across all districts. With a homestead exemption claimed, that drops to $4,973 — saving $1,315 per year. That's $414 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%$3,121
Round RockCity0.3720%$1,300
Williamson CountyCounty0.3694%$1,291
Austin Community Collegespecial0.1034%$361
Williamson County FM/RdCounty0.0443%$155
Upper Brushy Creek WCIDWater0.0170%$59
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,288

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $233,863 would pay approximately $1,460 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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