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1500 FOPPIANO LOOP, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath2,241 sqftBuilt 2004

Property at a Glance

This home is estimated between $362,898 and $668,701, with a best estimate of $607,670. 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

$362,898 $668,701
Best Estimate
$607,670
WCAD Value
$591,861
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 $362,898 and $668,701. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1502 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,109 sqft Built 2004
Raw Value $572,296
Adjusted Value $607,670

Adjusted +$35,374 for 132 sqft more living space. Net adjustment: +$35,374.

1504 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
4 bed 2 bath 2,932 sqft Built 2002
Raw Value $537,209
Adjusted Value $362,898

Adjusted -$185,175 for 691 sqft less living space and +$10,864 for being newer. Net adjustment: -$174,311.

1503 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,303 sqft Built 2003
Raw Value $402,441
Adjusted Value $391,258

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

1505 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.04 mi 100% similar Same subdivision
4 bed 3 bath 2,228 sqft Built 2004
Raw Value $614,875
Adjusted Value $618,359

Adjusted +$3,484 for 13 sqft more living space. Net adjustment: +$3,484.

1506 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,058 sqft Built 2003
Raw Value $614,228
Adjusted Value $668,701

Adjusted +$49,041 for 183 sqft more living space and +$5,432 for being newer. Net adjustment: +$54,473.

The Neighborhood

This home is valued 31.1% 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

above average
1,029 Properties
$451,534 Median Value
-7.0% YoY Change
2% Have Pool
100% Have Garage
This Home
$591,861
Median
$451,534

This home is +31.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,649 across all districts. With a homestead exemption claimed, that drops to $9,290 — saving $1,359 per year. That's $774 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%$5,286
Round RockCity0.3720%$2,202
Williamson CountyCounty0.3694%$2,187
Austin Community Collegespecial0.1034%$612
Williamson County FM/RdCounty0.0443%$262
Upper Brushy Creek WCIDWater0.0170%$101
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,649

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $607,670 would pay approximately $3,793 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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