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1588 HAYNIE BND, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,388 sqftBuilt 2006

Property at a Glance

This home is estimated between $205,390 and $427,561, with a best estimate of $251,600. 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

$205,390 $427,561
Best Estimate
$251,600
WCAD Value
$354,452
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 $205,390 and $427,561. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1584 HAYNIE BND, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,700 sqft Built 2006
Raw Value $310,508
Adjusted Value $238,266

Adjusted -$72,242 for 312 sqft less living space. Net adjustment: -$72,242.

3710 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 $349,298
Adjusted Value $427,561

Adjusted +$78,263 for 338 sqft more living space. Net adjustment: +$78,263.

1580 HAYNIE BND, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,388 sqft Built 2006
Raw Value $325,966
Adjusted Value $325,966

This comparable closely matches the subject property's features.

1587 HAYNIE BND, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,552 sqft Built 2006
Raw Value $289,574
Adjusted Value $251,600

Adjusted -$37,974 for 164 sqft less living space. Net adjustment: -$37,974.

3720 SANDY BROOK DR, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,914 sqft Built 2005
Raw Value $331,294
Adjusted Value $205,390

Adjusted -$121,793 for 526 sqft less living space and -$4,111 for being older. Net adjustment: -$125,904.

The Neighborhood

This home is valued 8.0% 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
$354,452
Median
$328,056

This home is +8.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,378 across all districts. With a homestead exemption claimed, that drops to $5,062 — saving $1,316 per year. That's $422 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%$3,166
Round RockCity0.3720%$1,319
Williamson CountyCounty0.3694%$1,310
Austin Community Collegespecial0.1034%$367
Williamson County FM/RdCounty0.0443%$157
Upper Brushy Creek WCIDWater0.0170%$60
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,378

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $251,600 would pay approximately $1,570 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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