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1521 FOPPIANO LOOP, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath2,859 sqftBuilt 2003

Property at a Glance

This home is estimated between $476,792 and $779,014, with a best estimate of $489,518. 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

$476,792 $779,014
Best Estimate
$489,518
WCAD Value
$483,622
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 $476,792 and $779,014. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1517 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
4 bed 2 bath 2,822 sqft Built 2003
Raw Value $479,603
Adjusted Value $489,518

Adjusted +$9,915 for 37 sqft more living space. Net adjustment: +$9,915.

1525 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
4 bed 2 bath 2,076 sqft Built 2004
Raw Value $574,616
Adjusted Value $779,014

Adjusted +$209,830 for 783 sqft more living space and -$5,432 for being older. Net adjustment: +$204,398.

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 $481,146

Adjusted +$7,503 for 28 sqft more living space and -$5,432 for being older. Net adjustment: +$2,071.

1516 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
4 bed 2 bath 2,496 sqft Built 2002
Raw Value $426,592
Adjusted Value $529,301

Adjusted +$97,277 for 363 sqft more living space and +$5,432 for being newer. Net adjustment: +$102,709.

1524 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,859 sqft Built 2004
Raw Value $482,224
Adjusted Value $476,792

Adjusted -$5,432 for being older. Net adjustment: -$5,432.

The Neighborhood

This home is valued 7.1% 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
$483,622
Median
$451,534

This home is +7.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,702 across all districts. With a homestead exemption claimed, that drops to $7,362 — saving $1,340 per year. That's $614 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%$4,319
Round RockCity0.3720%$1,799
Williamson CountyCounty0.3694%$1,787
Austin Community Collegespecial0.1034%$500
Williamson County FM/RdCounty0.0443%$214
Upper Brushy Creek WCIDWater0.0170%$82
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,702

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $489,518 would pay approximately $3,056 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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