Beta Williamson County, TX only — data and coverage are limited during early access.

215 HILLROCK CV, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,575 sqftBuilt 1983

Property at a Glance

This home is estimated between $306,958 and $412,671, with a best estimate of $330,206. 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

$306,958 $412,671
Best Estimate
$330,206
WCAD Value
$349,891
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 $306,958 and $412,671. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3706 HILLSIDE CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,456 sqft Built 1978
Raw Value $272,386
Adjusted Value $306,958

Adjusted +$26,539 for 119 sqft more living space and +$8,033 for being newer. Net adjustment: +$34,572.

210 HILLROCK CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,144 sqft Built 1983
Raw Value $266,520
Adjusted Value $362,641

Adjusted +$96,121 for 431 sqft more living space. Net adjustment: +$96,121.

3702 HILLSIDE CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,136 sqft Built 1978
Raw Value $306,732
Adjusted Value $412,671

Adjusted +$97,906 for 439 sqft more living space and +$8,033 for being newer. Net adjustment: +$105,939.

3 bed 2 bath 1,665 sqft Built 1995
Raw Value $369,558
Adjusted Value $330,206

Adjusted -$20,072 for 90 sqft less living space and -$19,280 for being older. Net adjustment: -$39,352.

3 bed 2 bath 1,670 sqft Built 1996
Raw Value $369,841
Adjusted Value $327,767

Adjusted -$21,187 for 95 sqft less living space and -$20,887 for being older. Net adjustment: -$42,074.

The Neighborhood

This home is valued 18.0% 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
$349,891
Median
$296,542

This home is +18.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,697 across all districts. With a homestead exemption claimed, that drops to $5,382 — saving $1,315 per year. That's $449 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%$3,125
Brushy Creek MUDMUD0.3868%$1,354
Williamson CountyCounty0.3694%$1,293
Austin Community Collegespecial0.1034%$362
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$350
Williamson County FM/RdCounty0.0443%$155
Upper Brushy Creek WCIDWater0.0170%$59
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$6,697

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $330,206 would pay approximately $2,061 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.

View full property details