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1340/1360 DOUBLE CREEK DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed3 bath2,398 sqftBuilt 1997

Property at a Glance

This home is estimated between $432,297 and $783,278, with a best estimate of $637,426. That places the property above the R450X - Round Rock East - Duplex median of $355,449, in a neighborhood that declined 8.7% over the past year.

Estimated Value Range

$432,297 $783,278
Best Estimate
$637,426
WCAD Value
$515,480
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R450X - Round Rock East - Duplex. The estimated range of $432,297 and $783,278 should be treated as a rough guide.

Comparable Properties (5)

1406 DOUBLE CREEK DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 4 bath 2,636 sqft Built 1984
Raw Value $589,137
Adjusted Value $555,893

Adjusted -$46,246 for 238 sqft less living space and +$13,002 for being newer. Net adjustment: -$33,244.

403 CREEK CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 4 bath 2,533 sqft Built 1978
Raw Value $397,739
Adjusted Value $432,297

Adjusted -$26,232 for 135 sqft less living space and +$19,003 for being newer and +$41,787 for having a garage. Net adjustment: +$34,558.

4 bed 3 bath 2,171 sqft Built 2005
Raw Value $668,716
Adjusted Value $704,824

Adjusted +$44,109 for 227 sqft more living space and -$8,001 for being older. Net adjustment: +$36,108.

5 bed 4 bath 2,413 sqft Built 1995
Raw Value $784,193
Adjusted Value $783,278

Adjusted -$2,915 for 15 sqft less living space and +$2,000 for being newer. Net adjustment: -$915.

4 bed 3 bath 3,353 sqft Built 1991
Raw Value $816,993
Adjusted Value $637,426

Adjusted -$185,568 for 955 sqft less living space and +$6,001 for being newer. Net adjustment: -$179,567.

The Neighborhood

This home is valued 45.0% above the R450X - Round Rock East - Duplex median of $355,449. With 836 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.7% over the past year.

R450X - Round Rock East - Duplex

above average
836 Properties
$355,449 Median Value
-8.7% YoY Change
0% Have Pool
84% Have Garage
This Home
$515,480
Median
$355,449

This home is +45.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,275 across all districts. With a homestead exemption claimed, that drops to $7,929 — saving $1,346 per year. That's $661 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%$4,604
Round RockCity0.3720%$1,918
Williamson CountyCounty0.3694%$1,904
Austin Community Collegespecial0.1034%$533
Williamson County FM/RdCounty0.0443%$229
Upper Brushy Creek WCIDWater0.0170%$88
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,275

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $637,426 would pay approximately $3,979 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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