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2813 W PIPER SONOMA CT, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath3,006 sqftBuilt 2007

Property at a Glance

This home is estimated between $551,450 and $830,680, with a best estimate of $570,090. 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

$551,450 $830,680
Best Estimate
$570,090
WCAD Value
$617,886
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 $551,450 and $830,680. 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 $570,090

Adjusted +$138,278 for 516 sqft more living space. Net adjustment: +$138,278.

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 $551,450

Adjusted +$71,551 for 267 sqft more living space and +$5,432 for being newer. Net adjustment: +$76,983.

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 $614,307

Adjusted +$69,139 for 258 sqft more living space and +$5,432 for being newer and -$18,697 for no pool. Net adjustment: +$55,874.

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 $561,572

Adjusted -$11,791 for 44 sqft less living space. Net adjustment: -$11,791.

2806 W PIPER SONOMA CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,152 sqft Built 2007
Raw Value $601,824
Adjusted Value $830,680

Adjusted +$228,856 for 854 sqft more living space. Net adjustment: +$228,856.

The Neighborhood

This home is valued 36.8% 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
$617,886
Median
$451,534

This home is +36.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,117 across all districts. With a homestead exemption claimed, that drops to $9,753 — saving $1,364 per year. That's $813 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%$5,518
Round RockCity0.3720%$2,299
Williamson CountyCounty0.3694%$2,283
Austin Community Collegespecial0.1034%$639
Williamson County FM/RdCounty0.0443%$274
Upper Brushy Creek WCIDWater0.0170%$105
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$11,117

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $570,090 would pay approximately $3,558 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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