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905 PENNY LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,109 sqftBuilt 1976

Property at a Glance

This home is estimated between $444,715 and $663,573, with a best estimate of $516,450. That places the property above the R325576F - ROUND ROCK WEST/LAKE CREEK WEST/SHADOW BROOK median of $476,515, in a neighborhood that declined 5.9% over the past year.

Estimated Value Range

$444,715 $663,573
Best Estimate
$516,450
WCAD Value
$558,183
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 $444,715 and $663,573. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

906 PENNY LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,157 sqft Built 1976
Raw Value $519,995
Adjusted Value $516,457

Adjusted -$11,394 for 48 sqft less living space and +$7,856 for having a pool. Net adjustment: -$3,538.

902 PENNY LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,146 sqft Built 1976
Raw Value $517,377
Adjusted Value $516,450

Adjusted -$8,783 for 37 sqft less living space and +$7,856 for having a pool. Net adjustment: -$927.

3 bed 2 bath 2,044 sqft Built 1979
Raw Value $428,530
Adjusted Value $444,715

Adjusted +$15,430 for 65 sqft more living space and -$7,101 for being older and +$7,856 for having a pool. Net adjustment: +$16,185.

905 DEER RUN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,773 sqft Built 1976
Raw Value $400,500
Adjusted Value $488,117

Adjusted +$79,761 for 336 sqft more living space and +$7,856 for having a pool. Net adjustment: +$87,617.

903 PENNY LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,780 sqft Built 1976
Raw Value $577,618
Adjusted Value $663,573

Adjusted +$78,099 for 329 sqft more living space and +$7,856 for having a pool. Net adjustment: +$85,955.

The Neighborhood

This home is valued 17.1% above the R325576F - ROUND ROCK WEST/LAKE CREEK WEST/SHADOW BROOK median of $476,515. With 822 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 5.9% over the past year.

R325576F - ROUND ROCK WEST/LAKE CREEK WEST/SHADOW BROOK

above average
822 Properties
$476,515 Median Value
-5.9% YoY Change
5% Have Pool
96% Have Garage
This Home
$558,183
Median
$476,515

This home is +17.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,043 across all districts. With a homestead exemption claimed, that drops to $8,690 — saving $1,353 per year. That's $724 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%$4,985
Round RockCity0.3720%$2,076
Williamson CountyCounty0.3694%$2,062
Austin Community Collegespecial0.1034%$577
Williamson County FM/RdCounty0.0443%$247
Upper Brushy Creek WCIDWater0.0170%$95
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,043

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $516,450 would pay approximately $3,224 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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