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2829 W PIPER SONOMA CT, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath2,105 sqftBuilt 2007

Property at a Glance

This home is estimated between $309,999 and $623,789, with a best estimate of $328,639. 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

$309,999 $623,789
Best Estimate
$328,639
WCAD Value
$578,130
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 $309,999 and $623,789. 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 $328,639

Adjusted -$103,173 for 385 sqft less living space. Net adjustment: -$103,173.

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 $309,999

Adjusted -$169,900 for 634 sqft less living space and +$5,432 for being newer. Net adjustment: -$164,468.

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 $623,789

Adjusted +$21,439 for 80 sqft more living space and +$5,432 for being newer. Net adjustment: +$26,871.

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 $372,856

Adjusted -$172,312 for 643 sqft less living space and +$5,432 for being newer and -$18,697 for no pool. Net adjustment: -$185,577.

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 $320,120

Adjusted -$253,243 for 945 sqft less living space. Net adjustment: -$253,243.

The Neighborhood

This home is valued 28.0% 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
$578,130
Median
$451,534

This home is +28.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,402 across all districts. With a homestead exemption claimed, that drops to $9,045 — saving $1,357 per year. That's $754 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%$5,163
Round RockCity0.3720%$2,151
Williamson CountyCounty0.3694%$2,136
Austin Community Collegespecial0.1034%$598
Williamson County FM/RdCounty0.0443%$256
Upper Brushy Creek WCIDWater0.0170%$98
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,402

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $328,639 would pay approximately $2,051 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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