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2904 E PIPER SONOMA CT, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,980 sqftBuilt 2007

Property at a Glance

This home is estimated between $544,483 and $610,918, with a best estimate of $563,123. 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

$544,483 $610,918
Best Estimate
$563,123
WCAD Value
$612,355
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 $544,483 and $610,918. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

2903 E PIPER SONOMA CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,490 sqft Built 2007
Raw Value $431,812
Adjusted Value $563,123

Adjusted +$131,311 for 490 sqft more living space. Net adjustment: +$131,311.

2916 E PIPER SONOMA CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,739 sqft Built 2006
Raw Value $474,467
Adjusted Value $544,483

Adjusted +$64,584 for 241 sqft more living space and +$5,432 for being newer. Net adjustment: +$70,016.

2820 W PIPER SONOMA CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,748 sqft Built 2006
Raw Value $558,433
Adjusted Value $607,340

Adjusted +$62,172 for 232 sqft more living space and +$5,432 for being newer and -$18,697 for no pool. Net adjustment: +$48,907.

2813 W PIPER SONOMA CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 3,006 sqft Built 2007
Raw Value $617,886
Adjusted Value $610,918

Adjusted -$6,968 for 26 sqft less living space. Net adjustment: -$6,968.

2816 W PIPER SONOMA CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 3,050 sqft Built 2007
Raw Value $573,363
Adjusted Value $554,604

Adjusted -$18,759 for 70 sqft less living space. Net adjustment: -$18,759.

The Neighborhood

This home is valued 35.6% 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
$612,355
Median
$451,534

This home is +35.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,018 across all districts. With a homestead exemption claimed, that drops to $9,655 — saving $1,363 per year. That's $805 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%$5,469
Round RockCity0.3720%$2,278
Williamson CountyCounty0.3694%$2,262
Austin Community Collegespecial0.1034%$633
Williamson County FM/RdCounty0.0443%$271
Upper Brushy Creek WCIDWater0.0170%$104
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$11,018

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $563,123 would pay approximately $3,515 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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