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1518 FOPPIANO LOOP, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath2,953 sqftBuilt 2004

Property at a Glance

This home is estimated between $502,330 and $584,741, with a best estimate of $549,919. 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

$502,330 $584,741
Best Estimate
$549,919
WCAD Value
$504,402
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 $502,330 and $584,741. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1514 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
4 bed 2 bath 2,441 sqft Built 2002
Raw Value $431,812
Adjusted Value $579,883

Adjusted +$137,207 for 512 sqft more living space and +$10,864 for being newer. Net adjustment: +$148,071.

1522 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,286 sqft Built 2004
Raw Value $405,997
Adjusted Value $584,741

Adjusted +$178,744 for 667 sqft more living space. Net adjustment: +$178,744.

1527 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.04 mi 100% similar Same subdivision
4 bed 3 bath 2,957 sqft Built 2003
Raw Value $545,559
Adjusted Value $549,919

Adjusted -$1,072 for 4 sqft less living space and +$5,432 for being newer. Net adjustment: +$4,360.

1526 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.04 mi 100% similar Same subdivision
3 bed 2 bath 2,921 sqft Built 2004
Raw Value $493,755
Adjusted Value $502,330

Adjusted +$8,575 for 32 sqft more living space. Net adjustment: +$8,575.

1510 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.05 mi 100% similar Same subdivision
4 bed 2 bath 2,860 sqft Built 2002
Raw Value $483,142
Adjusted Value $518,928

Adjusted +$24,922 for 93 sqft more living space and +$10,864 for being newer. Net adjustment: +$35,786.

The Neighborhood

This home is valued 11.7% 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
$504,402
Median
$451,534

This home is +11.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,076 across all districts. With a homestead exemption claimed, that drops to $7,732 — saving $1,344 per year. That's $644 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%$4,505
Round RockCity0.3720%$1,876
Williamson CountyCounty0.3694%$1,863
Austin Community Collegespecial0.1034%$522
Williamson County FM/RdCounty0.0443%$224
Upper Brushy Creek WCIDWater0.0170%$86
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,076

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $549,919 would pay approximately $3,433 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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