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1515 FOPPIANO LOOP, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,953 sqftBuilt 2004

Property at a Glance

This home is estimated between $518,961 and $763,007, with a best estimate of $569,759. 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

$518,961 $763,007
Best Estimate
$569,759
WCAD Value
$507,305
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R530506E - SONOMA ALL SECTIONS. The estimated range of $518,961 and $763,007 should be treated as a rough guide.

Comparable Properties (5)

1519 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,266 sqft Built 2004
Raw Value $392,541
Adjusted Value $576,644

Adjusted +$184,103 for 687 sqft more living space. Net adjustment: +$184,103.

1523 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,289 sqft Built 2004
Raw Value $585,067
Adjusted Value $763,007

Adjusted +$177,940 for 664 sqft more living space. Net adjustment: +$177,940.

3 bed 2 bath 2,647 sqft Built 2012
Raw Value $480,416
Adjusted Value $518,961

Adjusted +$82,002 for 306 sqft more living space and -$43,457 for being older. Net adjustment: +$38,545.

3 bed 2 bath 2,544 sqft Built 2011
Raw Value $474,395
Adjusted Value $545,974

Adjusted +$109,604 for 409 sqft more living space and -$38,025 for being older. Net adjustment: +$71,579.

3 bed 2 bath 2,343 sqft Built 1999
Raw Value $379,129
Adjusted Value $569,759

Adjusted +$163,469 for 610 sqft more living space and +$27,161 for being newer. Net adjustment: +$190,630.

The Neighborhood

This home is valued 12.4% 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
$507,305
Median
$451,534

This home is +12.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,128 across all districts. With a homestead exemption claimed, that drops to $7,784 — saving $1,344 per year. That's $649 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%$4,531
Round RockCity0.3720%$1,887
Williamson CountyCounty0.3694%$1,874
Austin Community Collegespecial0.1034%$525
Williamson County FM/RdCounty0.0443%$225
Upper Brushy Creek WCIDWater0.0170%$86
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,128

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $569,759 would pay approximately $3,556 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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