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1604 SAINT WILLIAMS LOOP, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,490 sqftBuilt 1977

Property at a Glance

This home is estimated between $298,585 and $502,579, with a best estimate of $443,117. 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

$298,585 $502,579
Best Estimate
$443,117
WCAD Value
$581,189
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $298,585 and $502,579. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

1616 SAINT WILLIAMS LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,223 sqft Built 1977
Raw Value $518,065
Adjusted Value $344,062

Adjusted -$174,003 for 733 sqft less living space. Net adjustment: -$174,003.

1613 SAINT WILLIAMS LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,066 sqft Built 1977
Raw Value $613,071
Adjusted Value $476,338

Adjusted -$136,733 for 576 sqft less living space. Net adjustment: -$136,733.

1609 SAINT WILLIAMS LOOP, ROUND ROCK, TX 78681
0.00 mi 98% similar Same subdivision
3 bed 2 bath 2,271 sqft Built 1980
Raw Value $491,083
Adjusted Value $298,585

Adjusted -$185,397 for 781 sqft less living space and -$7,101 for being older. Net adjustment: -$192,498.

4 bed 2 bath 1,328 sqft Built 1993
Raw Value $442,534
Adjusted Value $443,117

Adjusted +$38,456 for 162 sqft more living space and -$37,873 for being older. Net adjustment: +$583.

4 bed 2 bath 1,237 sqft Built 1993
Raw Value $480,394
Adjusted Value $502,579

Adjusted +$60,058 for 253 sqft more living space and -$37,873 for being older. Net adjustment: +$22,185.

The Neighborhood

This home is valued 22.0% 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
$581,189
Median
$476,515

This home is +22.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,457 across all districts. With a homestead exemption claimed, that drops to $9,099 — saving $1,358 per year. That's $758 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%$5,191
Round RockCity0.3720%$2,162
Williamson CountyCounty0.3694%$2,147
Austin Community Collegespecial0.1034%$601
Williamson County FM/RdCounty0.0443%$258
Upper Brushy Creek WCIDWater0.0170%$99
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,457

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $443,117 would pay approximately $2,766 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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