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1200 ST WILLIAMS AVE, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,574 sqftBuilt 1976

Property at a Glance

This home is estimated between $569,231 and $772,432, with a best estimate of $631,674. 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

$569,231 $772,432
Best Estimate
$631,674
WCAD Value
$591,549
High Confidence

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

Based on 5 comparable properties in R325576F - ROUND ROCK WEST/LAKE CREEK WEST/SHADOW BROOK, this home's estimated market value is between $569,231 and $772,432. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

2006 CREEKVIEW DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,934 sqft Built 1978
Raw Value $484,482
Adjusted Value $631,674

Adjusted +$151,926 for 640 sqft more living space and -$4,734 for being older. Net adjustment: +$147,192.

1405 DRAGON DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,542 sqft Built 1975
Raw Value $383,067
Adjusted Value $630,415

Adjusted +$244,981 for 1,032 sqft more living space and +$2,367 for being newer. Net adjustment: +$247,348.

1908 CREEKVIEW DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,044 sqft Built 1981
Raw Value $455,252
Adjusted Value $569,231

Adjusted +$125,814 for 530 sqft more living space and -$11,835 for being older. Net adjustment: +$113,979.

402 S LAKE CREEK DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,971 sqft Built 1975
Raw Value $496,156
Adjusted Value $641,666

Adjusted +$143,143 for 603 sqft more living space and +$2,367 for being newer. Net adjustment: +$145,510.

1902 CREEKVIEW DR, ROUND ROCK, TX 78681
0.00 mi 98% similar Same subdivision
4 bed 2 bath 1,657 sqft Built 1978
Raw Value $559,484
Adjusted Value $772,432

Adjusted +$217,682 for 917 sqft more living space and -$4,734 for being older. Net adjustment: +$212,948.

The Neighborhood

This home is valued 24.1% 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
$591,549
Median
$476,515

This home is +24.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,644 across all districts. With a homestead exemption claimed, that drops to $9,284 — saving $1,360 per year. That's $774 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%$5,283
Round RockCity0.3720%$2,201
Williamson CountyCounty0.3694%$2,185
Austin Community Collegespecial0.1034%$612
Williamson County FM/RdCounty0.0443%$262
Upper Brushy Creek WCIDWater0.0170%$101
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,644

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $631,674 would pay approximately $3,943 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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