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905 DEER RUN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,773 sqftBuilt 1976

Property at a Glance

This home is estimated between $357,098 and $617,106, with a best estimate of $428,839. That places the property below 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

$357,098 $617,106
Best Estimate
$428,839
WCAD Value
$400,500
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 $357,098 and $617,106. 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 $428,839

Adjusted -$91,156 for 384 sqft less living space. Net adjustment: -$91,156.

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 $428,833

Adjusted -$88,544 for 373 sqft less living space. Net adjustment: -$88,544.

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 $575,956

Adjusted -$1,662 for 7 sqft less living space. Net adjustment: -$1,662.

3 bed 2 bath 2,044 sqft Built 1979
Raw Value $428,530
Adjusted Value $357,098

Adjusted -$64,331 for 271 sqft less living space and -$7,101 for being older. Net adjustment: -$71,432.

903 DEER RUN, ROUND ROCK, TX 78681
0.00 mi 97% similar Same subdivision
4 bed 2 bath 1,057 sqft Built 1976
Raw Value $447,139
Adjusted Value $617,106

Adjusted +$169,967 for 716 sqft more living space. Net adjustment: +$169,967.

The Neighborhood

This home is valued 16.0% below the R325576F - ROUND ROCK WEST/LAKE CREEK WEST/SHADOW BROOK median of $476,515. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 5.9% over the past year.

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

below average
822 Properties
$476,515 Median Value
-5.9% YoY Change
5% Have Pool
96% Have Garage
This Home
$400,500
Median
$476,515

This home is -16.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,206 across all districts. With a homestead exemption claimed, that drops to $5,882 — saving $1,324 per year. That's $490 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%$3,577
Round RockCity0.3720%$1,490
Williamson CountyCounty0.3694%$1,480
Austin Community Collegespecial0.1034%$414
Williamson County FM/RdCounty0.0443%$178
Upper Brushy Creek WCIDWater0.0170%$68
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,206

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $428,839 would pay approximately $2,677 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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