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906 DEER RUN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,123 sqftBuilt 1976

Property at a Glance

This home is estimated between $440,182 and $659,041, with a best estimate of $511,917. 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

$440,182 $659,041
Best Estimate
$511,917
WCAD Value
$498,479
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 $440,182 and $659,041. 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 $511,924

Adjusted -$8,071 for 34 sqft less living space. Net adjustment: -$8,071.

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 $511,917

Adjusted -$5,460 for 23 sqft less living space. Net adjustment: -$5,460.

3 bed 2 bath 2,044 sqft Built 1979
Raw Value $428,530
Adjusted Value $440,182

Adjusted +$18,753 for 79 sqft more living space and -$7,101 for being older. Net adjustment: +$11,652.

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 $483,585

Adjusted +$83,085 for 350 sqft more living space. Net adjustment: +$83,085.

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 $659,041

Adjusted +$81,423 for 343 sqft more living space. Net adjustment: +$81,423.

The Neighborhood

This home is valued 4.6% 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

typical
822 Properties
$476,515 Median Value
-5.9% YoY Change
5% Have Pool
96% Have Garage
This Home
$498,479
Median
$476,515

This home is +4.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,969 across all districts. With a homestead exemption claimed, that drops to $7,627 — saving $1,342 per year. That's $636 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%$4,452
Round RockCity0.3720%$1,854
Williamson CountyCounty0.3694%$1,842
Austin Community Collegespecial0.1034%$515
Williamson County FM/RdCounty0.0443%$221
Upper Brushy Creek WCIDWater0.0170%$85
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,969

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $511,917 would pay approximately $3,195 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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