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600 STONEY BROOK, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,484 sqftBuilt 1980

Property at a Glance

This home is estimated between $306,627 and $446,569, with a best estimate of $311,258. That places the property above the R210480H - Brushy Creek median of $296,542, in a neighborhood that declined 14.6% over the past year.

Estimated Value Range

$306,627 $446,569
Best Estimate
$311,258
WCAD Value
$373,602
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $306,627 and $446,569. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

608 STONEY BROOK, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
2 bed 2 bath 1,398 sqft Built 1980
Raw Value $299,453
Adjusted Value $318,633

Adjusted +$19,180 for 86 sqft more living space. Net adjustment: +$19,180.

3 bed 2 bath 1,398 sqft Built 1975
Raw Value $279,414
Adjusted Value $306,627

Adjusted +$19,180 for 86 sqft more living space and +$8,033 for being newer. Net adjustment: +$27,213.

602 STONEY BROOK, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 972 sqft Built 1979
Raw Value $330,776
Adjusted Value $446,569

Adjusted +$114,186 for 512 sqft more living space and +$1,607 for being newer. Net adjustment: +$115,793.

3 bed 2 bath 1,430 sqft Built 1975
Raw Value $292,681
Adjusted Value $307,155

Adjusted +$12,043 for 54 sqft more living space and +$8,033 for being newer and -$5,602 for no pool. Net adjustment: +$14,474.

603 STONEY BROOK, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,363 sqft Built 1980
Raw Value $284,273
Adjusted Value $311,258

Adjusted +$26,985 for 121 sqft more living space. Net adjustment: +$26,985.

The Neighborhood

This home is valued 26.0% above the R210480H - Brushy Creek median of $296,542. With 871 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 14.6% over the past year.

R210480H - Brushy Creek

above average
871 Properties
$296,542 Median Value
-14.6% YoY Change
2% Have Pool
94% Have Garage
This Home
$373,602
Median
$296,542

This home is +26.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,151 across all districts. With a homestead exemption claimed, that drops to $5,832 — saving $1,319 per year. That's $486 per month a buyer should budget. The assessed value increased -3.7% vs the subdivision average of -14.6%. This above-average increase gives a protest opportunity score of 50 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$3,337
Brushy Creek MUDMUD0.3868%$1,445
Williamson CountyCounty0.3694%$1,380
Austin Community Collegespecial0.1034%$386
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$374
Williamson County FM/RdCounty0.0443%$166
Upper Brushy Creek WCIDWater0.0170%$64
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$7,151
50 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $311,258 would pay approximately $1,943 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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