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2900 E PIPER SONOMA CT, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath2,062 sqftBuilt 2006

Property at a Glance

This home is estimated between $293,044 and $606,833, with a best estimate of $359,479. That places the property below the R530506E - SONOMA ALL SECTIONS median of $451,534, in a neighborhood that declined 7.0% over the past year.

Estimated Value Range

$293,044 $606,833
Best Estimate
$359,479
WCAD Value
$646,707
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 $293,044 and $606,833. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $293,044

Adjusted -$181,423 for 677 sqft less living space. Net adjustment: -$181,423.

2825 W PIPER SONOMA CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,025 sqft Built 2006
Raw Value $596,918
Adjusted Value $606,833

Adjusted +$9,915 for 37 sqft more living space. Net adjustment: +$9,915.

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 $355,901

Adjusted -$183,835 for 686 sqft less living space and -$18,697 for no pool. Net adjustment: -$202,532.

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 $359,479

Adjusted -$252,975 for 944 sqft less living space and -$5,432 for being older. Net adjustment: -$258,407.

2912 E PIPER SONOMA CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,080 sqft Built 2006
Raw Value $598,018
Adjusted Value $593,194

Adjusted -$4,824 for 18 sqft less living space. Net adjustment: -$4,824.

The Neighborhood

This home is valued 43.2% 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
$646,707
Median
$451,534

This home is +43.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,636 across all districts. With a homestead exemption claimed, that drops to $10,266 — saving $1,370 per year. That's $856 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%$5,776
Round RockCity0.3720%$2,406
Williamson CountyCounty0.3694%$2,389
Austin Community Collegespecial0.1034%$669
Williamson County FM/RdCounty0.0443%$287
Upper Brushy Creek WCIDWater0.0170%$110
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$11,636

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $359,479 would pay approximately $2,244 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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