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

3835 HARVEY PENICK DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed3 bath2,909 sqftBuilt 2003

Property at a Glance

This home is estimated between $795,894 and $965,756, with a best estimate of $834,165. That places the property above the R550600D - Forest Creek Sec 15,16,19,31 median of $514,276, in a neighborhood that declined 8.7% over the past year.

Estimated Value Range

$795,894 $965,756
Best Estimate
$834,165
WCAD Value
$539,950
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 $795,894 and $965,756. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

4 bed 3 bath 2,791 sqft Built 2006
Raw Value $883,841
Adjusted Value $911,708

Adjusted +$33,761 for 118 sqft more living space and -$5,894 for being older. Net adjustment: +$27,867.

3808 HARVEY PENICK DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,810 sqft Built 2002
Raw Value $517,769
Adjusted Value $834,165

Adjusted +$314,431 for 1,099 sqft more living space and +$1,965 for being newer. Net adjustment: +$316,396.

4 bed 3 bath 2,658 sqft Built 2002
Raw Value $891,978
Adjusted Value $965,756

Adjusted +$71,813 for 251 sqft more living space and +$1,965 for being newer. Net adjustment: +$73,778.

3739 HARVEY PENICK DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,006 sqft Built 2003
Raw Value $553,569
Adjusted Value $811,923

Adjusted +$258,354 for 903 sqft more living space. Net adjustment: +$258,354.

3803 HARVEY PENICK DR, ROUND ROCK, TX 78664
0.00 mi 99% similar Same subdivision
4 bed 2 bath 2,028 sqft Built 2003
Raw Value $543,834
Adjusted Value $795,894

Adjusted +$252,060 for 881 sqft more living space. Net adjustment: +$252,060.

The Neighborhood

This home is valued 5.0% above the R550600D - Forest Creek Sec 15,16,19,31 median of $514,276. With 274 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.7% over the past year.

R550600D - Forest Creek Sec 15,16,19,31

typical
274 Properties
$514,276 Median Value
-8.7% YoY Change
0% Have Pool
99% Have Garage
This Home
$539,950
Median
$514,276

This home is +5.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,715 across all districts. With a homestead exemption claimed, that drops to $8,365 — saving $1,350 per year. That's $697 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%$4,822
Round RockCity0.3720%$2,009
Williamson CountyCounty0.3694%$1,995
Austin Community Collegespecial0.1034%$558
Williamson County FM/RdCounty0.0443%$239
Upper Brushy Creek WCIDWater0.0170%$92
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,715

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $834,165 would pay approximately $5,207 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