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1527 HAYNIE BND, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,554 sqftBuilt 2008

Property at a Glance

This home is estimated between $275,805 and $455,185, with a best estimate of $308,865. 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

$275,805 $455,185
Best Estimate
$308,865
WCAD Value
$379,144
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 $275,805 and $455,185. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1523 HAYNIE BND, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,260 sqft Built 2009
Raw Value $382,999
Adjusted Value $455,185

Adjusted +$68,075 for 294 sqft more living space and +$4,111 for being newer. Net adjustment: +$72,186.

1531 HAYNIE BND, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
4 bed 3 bath 1,240 sqft Built 2008
Raw Value $374,238
Adjusted Value $446,944

Adjusted +$72,706 for 314 sqft more living space. Net adjustment: +$72,706.

3612 SANDY BROOK DR, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,730 sqft Built 2008
Raw Value $316,557
Adjusted Value $275,805

Adjusted -$40,752 for 176 sqft less living space. Net adjustment: -$40,752.

1535 HAYNIE BND, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,493 sqft Built 2009
Raw Value $285,289
Adjusted Value $303,524

Adjusted +$14,124 for 61 sqft more living space and +$4,111 for being newer. Net adjustment: +$18,235.

3616 SANDY BROOK DR, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,482 sqft Built 2009
Raw Value $288,083
Adjusted Value $308,865

Adjusted +$16,671 for 72 sqft more living space and +$4,111 for being newer. Net adjustment: +$20,782.

The Neighborhood

This home is valued 15.6% 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

above average
197 Properties
$328,056 Median Value
-4.7% YoY Change
0% Have Pool
100% Have Garage
This Home
$379,144
Median
$328,056

This home is +15.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,822 across all districts. With a homestead exemption claimed, that drops to $5,501 — saving $1,321 per year. That's $458 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%$3,386
Round RockCity0.3720%$1,410
Williamson CountyCounty0.3694%$1,401
Austin Community Collegespecial0.1034%$392
Williamson County FM/RdCounty0.0443%$168
Upper Brushy Creek WCIDWater0.0170%$64
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,822

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $308,865 would pay approximately $1,928 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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