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1503 FOPPIANO LOOP, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,303 sqftBuilt 2003

Property at a Glance

This home is estimated between $361,852 and $629,542, with a best estimate of $603,044. 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

$361,852 $629,542
Best Estimate
$603,044
WCAD Value
$402,441
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 $361,852 and $629,542 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,143 sqft Built 1998
Raw Value $548,540
Adjusted Value $618,578

Adjusted +$42,877 for 160 sqft more living space and +$27,161 for being newer. Net adjustment: +$70,038.

3 bed 2 bath 2,407 sqft Built 2006
Raw Value $406,018
Adjusted Value $361,852

Adjusted -$27,870 for 104 sqft less living space and -$16,296 for being older. Net adjustment: -$44,166.

1505 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
4 bed 3 bath 2,228 sqft Built 2004
Raw Value $614,875
Adjusted Value $629,542

Adjusted +$20,099 for 75 sqft more living space and -$5,432 for being older. Net adjustment: +$14,667.

3 bed 2 bath 2,176 sqft Built 2006
Raw Value $379,048
Adjusted Value $396,786

Adjusted +$34,034 for 127 sqft more living space and -$16,296 for being older. Net adjustment: +$17,738.

1500 FOPPIANO LOOP, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,241 sqft Built 2004
Raw Value $591,861
Adjusted Value $603,044

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

The Neighborhood

This home is valued 10.9% below the R530506E - SONOMA ALL SECTIONS median of $451,534. That positions it competitively for buyers comparing within the neighborhood. 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
$402,441
Median
$451,534

This home is -10.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,241 across all districts. With a homestead exemption claimed, that drops to $5,916 — saving $1,325 per year. That's $493 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%$3,594
Round RockCity0.3720%$1,497
Williamson CountyCounty0.3694%$1,487
Austin Community Collegespecial0.1034%$416
Williamson County FM/RdCounty0.0443%$178
Upper Brushy Creek WCIDWater0.0170%$68
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,241

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $603,044 would pay approximately $3,764 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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