Beta Williamson County, TX only — data and coverage are limited during early access.

1532 FOPPIANO LOOP, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath2,921 sqftBuilt 2003

Property at a Glance

This home is estimated between $493,407 and $832,942, with a best estimate of $545,916. That places the property above the R530506E - SONOMA ALL SECTIONS median of $451,534, in a neighborhood that declined 7.0% over the past year.

Estimated Value Range

$493,407 $832,942
Best Estimate
$545,916
WCAD Value
$488,828
High Confidence

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

Based on 5 comparable properties in R530506E - SONOMA ALL SECTIONS, this home's estimated market value is between $493,407 and $832,942. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1528 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
4 bed 2 bath 2,121 sqft Built 2004
Raw Value $565,783
Adjusted Value $774,736

Adjusted +$214,385 for 800 sqft more living space and -$5,432 for being older. Net adjustment: +$208,953.

1536 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
4 bed 3 bath 2,133 sqft Built 2004
Raw Value $627,205
Adjusted Value $832,942

Adjusted +$211,169 for 788 sqft more living space and -$5,432 for being older. Net adjustment: +$205,737.

1524 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
4 bed 3 bath 2,859 sqft Built 2004
Raw Value $482,224
Adjusted Value $493,407

Adjusted +$16,615 for 62 sqft more living space and -$5,432 for being older. Net adjustment: +$11,183.

1520 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
4 bed 2 bath 2,831 sqft Built 2004
Raw Value $479,075
Adjusted Value $497,761

Adjusted +$24,118 for 90 sqft more living space and -$5,432 for being older. Net adjustment: +$18,686.

1516 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.04 mi 100% similar Same subdivision
4 bed 2 bath 2,496 sqft Built 2002
Raw Value $426,592
Adjusted Value $545,916

Adjusted +$113,892 for 425 sqft more living space and +$5,432 for being newer. Net adjustment: +$119,324.

The Neighborhood

This home is valued 8.3% above the R530506E - SONOMA ALL SECTIONS median of $451,534. With 1,029 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 7.0% over the past year.

R530506E - SONOMA ALL SECTIONS

typical
1,029 Properties
$451,534 Median Value
-7.0% YoY Change
2% Have Pool
100% Have Garage
This Home
$488,828
Median
$451,534

This home is +8.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,795 across all districts. With a homestead exemption claimed, that drops to $7,455 — saving $1,340 per year. That's $621 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%$4,366
Round RockCity0.3720%$1,818
Williamson CountyCounty0.3694%$1,806
Austin Community Collegespecial0.1034%$505
Williamson County FM/RdCounty0.0443%$217
Upper Brushy Creek WCIDWater0.0170%$83
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,795

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $545,916 would pay approximately $3,408 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.

View full property details