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8303 HILL ROCK DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,066 sqftBuilt 1992

Property at a Glance

This home is estimated between $218,394 and $543,312, with a best estimate of $476,393. That places the property above the R222592G - CAT HOLLOW ALL SECTIONS R4 median of $451,685, in a neighborhood that declined 6.9% over the past year.

Estimated Value Range

$218,394 $543,312
Best Estimate
$476,393
WCAD Value
$427,542
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $218,394 and $543,312. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

16709 DORMAN DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,584 sqft Built 1995
Raw Value $381,657
Adjusted Value $489,370

Adjusted +$130,110 for 482 sqft more living space and -$22,397 for being older. Net adjustment: +$107,713.

16829 LUCKENWALD DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,585 sqft Built 1997
Raw Value $383,881
Adjusted Value $476,393

Adjusted +$129,840 for 481 sqft more living space and -$37,328 for being older. Net adjustment: +$92,512.

16716 TOMCAT DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,675 sqft Built 1995
Raw Value $367,941
Adjusted Value $451,090

Adjusted +$105,546 for 391 sqft more living space and -$22,397 for being older. Net adjustment: +$83,149.

3 bed 2 bath 2,044 sqft Built 1981
Raw Value $455,252
Adjusted Value $543,312

Adjusted +$5,939 for 22 sqft more living space and +$82,121 for being newer. Net adjustment: +$88,060.

6041 RONCHAMPS DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 3,097 sqft Built 2000
Raw Value $556,425
Adjusted Value $218,394

Adjusted -$278,306 for 1,031 sqft less living space and -$59,725 for being older. Net adjustment: -$338,031.

The Neighborhood

This home is valued 5.3% below the R222592G - CAT HOLLOW ALL SECTIONS R4 median of $451,685. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 6.9% over the past year.

R222592G - CAT HOLLOW ALL SECTIONS R4

typical
1,233 Properties
$451,685 Median Value
-6.9% YoY Change
1% Have Pool
100% Have Garage
This Home
$427,542
Median
$451,685

This home is -5.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,184 across all districts. With a homestead exemption claimed, that drops to $6,854 — saving $1,330 per year. That's $571 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%$3,818
Brushy Creek MUDMUD0.3868%$1,654
Williamson CountyCounty0.3694%$1,580
Austin Community Collegespecial0.1034%$442
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$428
Williamson County FM/RdCounty0.0443%$190
Upper Brushy Creek WCIDWater0.0170%$73
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$8,184

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $476,393 would pay approximately $2,974 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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