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1616 SAINT WILLIAMS LOOP, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath2,223 sqftBuilt 1977

Property at a Glance

This home is estimated between $388,411 and $755,192, with a best estimate of $540,928. 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

$388,411 $755,192
Best Estimate
$540,928
WCAD Value
$518,065
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 $388,411 and $755,192. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

1604 SAINT WILLIAMS LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,490 sqft Built 1977
Raw Value $581,189
Adjusted Value $755,192

Adjusted +$174,003 for 733 sqft more 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 $650,340

Adjusted +$37,269 for 157 sqft more living space. Net adjustment: +$37,269.

1609 SAINT WILLIAMS LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,271 sqft Built 1980
Raw Value $491,083
Adjusted Value $472,588

Adjusted -$11,394 for 48 sqft less living space and -$7,101 for being older. Net adjustment: -$18,495.

3 bed 2 bath 2,195 sqft Built 2004
Raw Value $598,191
Adjusted Value $540,928

Adjusted +$6,647 for 28 sqft more living space and -$63,910 for being older. Net adjustment: -$57,263.

3 bed 2 bath 2,129 sqft Built 2005
Raw Value $432,374
Adjusted Value $388,411

Adjusted +$22,314 for 94 sqft more living space and -$66,277 for being older. Net adjustment: -$43,963.

The Neighborhood

This home is valued 8.7% 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
$518,065
Median
$476,515

This home is +8.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,321 across all districts. With a homestead exemption claimed, that drops to $7,975 — saving $1,346 per year. That's $665 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%$4,627
Round RockCity0.3720%$1,927
Williamson CountyCounty0.3694%$1,914
Austin Community Collegespecial0.1034%$536
Williamson County FM/RdCounty0.0443%$230
Upper Brushy Creek WCIDWater0.0170%$88
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,321

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $540,928 would pay approximately $3,376 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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