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3818 HARVEY PENICK DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath1,883 sqftBuilt 2004

Property at a Glance

This home is estimated between $428,618 and $608,116, with a best estimate of $535,521. 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

$428,618 $608,116
Best Estimate
$535,521
WCAD Value
$538,825
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 $428,618 and $608,116. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3645 HARVEY PENICK DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,152 sqft Built 2005
Raw Value $587,338
Adjusted Value $508,410

Adjusted -$76,963 for 269 sqft less living space and -$1,965 for being older. Net adjustment: -$78,928.

3824 HARVEY PENICK DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,970 sqft Built 2002
Raw Value $556,482
Adjusted Value $535,521

Adjusted -$24,891 for 87 sqft less living space and +$3,930 for being newer. Net adjustment: -$20,961.

4 bed 2 bath 1,829 sqft Built 2007
Raw Value $598,560
Adjusted Value $608,116

Adjusted +$15,450 for 54 sqft more living space and -$5,894 for being older. Net adjustment: +$9,556.

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 $598,414

Adjusted +$64,660 for 226 sqft more living space and +$3,930 for being newer. Net adjustment: +$68,590.

3826 HARVEY PENICK DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,162 sqft Built 2002
Raw Value $504,512
Adjusted Value $428,618

Adjusted -$79,824 for 279 sqft less living space and +$3,930 for being newer. Net adjustment: -$75,894.

The Neighborhood

This home is valued 4.8% 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
$538,825
Median
$514,276

This home is +4.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,695 across all districts. With a homestead exemption claimed, that drops to $8,345 — saving $1,350 per year. That's $695 per month a buyer should budget. The assessed value increased -1.6% vs the subdivision average of -8.7%. This above-average increase gives a protest opportunity score of 36 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$4,812
Round RockCity0.3720%$2,004
Williamson CountyCounty0.3694%$1,991
Austin Community Collegespecial0.1034%$557
Williamson County FM/RdCounty0.0443%$239
Upper Brushy Creek WCIDWater0.0170%$92
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,695
36 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $535,521 would pay approximately $3,343 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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