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

3830 HARVEY PENICK DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed3 bath1,236 sqftBuilt 2002

Property at a Glance

This home is estimated between $331,302 and $528,189, with a best estimate of $409,373. That places the property below 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

$331,302 $528,189
Best Estimate
$409,373
WCAD Value
$518,350
High Confidence

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

Based on 5 comparable properties in R550600D - Forest Creek Sec 15,16,19,31, this home's estimated market value is between $331,302 and $528,189. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3735 HARVEY PENICK DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
5 bed 4 bath 1,315 sqft Built 2002
Raw Value $521,910
Adjusted Value $499,308

Adjusted -$22,602 for 79 sqft less living space. Net adjustment: -$22,602.

3736 HARVEY PENICK DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,657 sqft Built 2002
Raw Value $529,824
Adjusted Value $409,373

Adjusted -$120,451 for 421 sqft less living space. Net adjustment: -$120,451.

3710 HARVEY PENICK CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,155 sqft Built 2002
Raw Value $505,014
Adjusted Value $528,189

Adjusted +$23,175 for 81 sqft more living space. Net adjustment: +$23,175.

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 $353,544

Adjusted -$164,225 for 574 sqft less living space. Net adjustment: -$164,225.

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 $331,302

Adjusted -$220,302 for 770 sqft less living space and -$1,965 for being older. Net adjustment: -$222,267.

The Neighborhood

This home is in line with the R550600D - Forest Creek Sec 15,16,19,31 median of $514,276. 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
$518,350
Median
$514,276

This home is +0.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,294 across all districts. With a homestead exemption claimed, that drops to $7,948 — saving $1,346 per year. That's $662 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%$4,613
Round RockCity0.3720%$1,921
Williamson CountyCounty0.3694%$1,908
Austin Community Collegespecial0.1034%$534
Williamson County FM/RdCounty0.0443%$229
Upper Brushy Creek WCIDWater0.0170%$88
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,294

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $409,373 would pay approximately $2,555 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