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

4004 HARVEY PENICK DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed3 bath2,919 sqftBuilt 2011

Property at a Glance

This home is estimated between $777,965 and $1,036,585, with a best estimate of $921,310. That places the property above the R549699C - Forest Creek Sec 14,20,21,26-30,33,34 median of $910,927, in a neighborhood that declined 3.1% over the past year.

Estimated Value Range

$777,965 $1,036,585
Best Estimate
$921,310
WCAD Value
$746,199
High Confidence

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

Based on 5 comparable properties in R549699C - Forest Creek Sec 14,20,21,26-30,33,34, this home's estimated market value is between $777,965 and $1,036,585. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4013 HARVEY PENICK DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,791 sqft Built 2006
Raw Value $883,841
Adjusted Value $921,310

Adjusted +$44,781 for 128 sqft more living space and -$7,312 for being older. Net adjustment: +$37,469.

4514 HARVEY PENICK DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 4 bath 2,718 sqft Built 2001
Raw Value $980,889
Adjusted Value $1,036,585

Adjusted +$70,320 for 201 sqft more living space and -$14,624 for being older. Net adjustment: +$55,696.

4001 HARVEY PENICK DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,323 sqft Built 2011
Raw Value $646,209
Adjusted Value $854,719

Adjusted +$208,510 for 596 sqft more living space. Net adjustment: +$208,510.

4003 HARVEY PENICK DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,658 sqft Built 2002
Raw Value $891,978
Adjusted Value $970,128

Adjusted +$91,311 for 261 sqft more living space and -$13,161 for being older. Net adjustment: +$78,150.

4008 HARVEY PENICK DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,904 sqft Built 2002
Raw Value $785,878
Adjusted Value $777,965

Adjusted +$5,248 for 15 sqft more living space and -$13,161 for being older. Net adjustment: -$7,913.

The Neighborhood

This home is valued 18.1% below the R549699C - Forest Creek Sec 14,20,21,26-30,33,34 median of $910,927. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 3.1% over the past year.

R549699C - Forest Creek Sec 14,20,21,26-30,33,34

below average
271 Properties
$910,927 Median Value
-3.1% YoY Change
1% Have Pool
99% Have Garage
This Home
$746,199
Median
$910,927

This home is -18.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $13,426 across all districts. With a homestead exemption claimed, that drops to $12,038 — saving $1,388 per year. That's $1,003 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%$6,664
Round RockCity0.3720%$2,776
Williamson CountyCounty0.3694%$2,757
Austin Community Collegespecial0.1034%$772
Williamson County FM/RdCounty0.0443%$331
Upper Brushy Creek WCIDWater0.0170%$127
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$13,426

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $921,310 would pay approximately $5,751 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