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609 HILLBROOK, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,536 sqftBuilt 1979

Property at a Glance

This home is estimated between $308,934 and $331,604, with a best estimate of $318,492. 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

$308,934 $331,604
Best Estimate
$318,492
WCAD Value
$288,001
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R210480H - Brushy Creek. The estimated range of $308,934 and $331,604 should be treated as a rough guide.

Comparable Properties (5)

609 STONEY BROOK, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,438 sqft Built 1979
Raw Value $303,981
Adjusted Value $325,837

Adjusted +$21,856 for 98 sqft more living space. Net adjustment: +$21,856.

609 SPLITROCK, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,420 sqft Built 1979
Raw Value $283,064
Adjusted Value $308,934

Adjusted +$25,870 for 116 sqft more living space. Net adjustment: +$25,870.

3 bed 1,386 sqft Built 1977
Raw Value $281,826
Adjusted Value $318,492

Adjusted +$33,453 for 150 sqft more living space and +$3,213 for being newer. Net adjustment: +$36,666.

3 bed 2 bath 1,388 sqft Built 1979
Raw Value $284,528
Adjusted Value $317,535

Adjusted +$33,007 for 148 sqft more living space. Net adjustment: +$33,007.

3 bed 2 bath 1,281 sqft Built 1977
Raw Value $271,521
Adjusted Value $331,604

Adjusted +$56,870 for 255 sqft more living space and +$3,213 for being newer. Net adjustment: +$60,083.

The Neighborhood

This home is valued 2.9% below the R210480H - Brushy Creek median of $296,542. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 14.6% over the past year.

R210480H - Brushy Creek

typical
871 Properties
$296,542 Median Value
-14.6% YoY Change
2% Have Pool
94% Have Garage
This Home
$288,001
Median
$296,542

This home is -2.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,513 across all districts. With a homestead exemption claimed, that drops to $4,209 — saving $1,304 per year. That's $351 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%$2,572
Brushy Creek MUDMUD0.3868%$1,114
Williamson CountyCounty0.3694%$1,064
Austin Community Collegespecial0.1034%$298
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$288
Williamson County FM/RdCounty0.0443%$128
Upper Brushy Creek WCIDWater0.0170%$49
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$5,513

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $318,492 would pay approximately $1,988 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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