Beta Williamson County, TX only — data and coverage are limited during early access.

2911 E PIPER SONOMA CT, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,664 sqftBuilt 2007

Property at a Glance

This home is estimated between $459,800 and $773,590, with a best estimate of $522,658. 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

$459,800 $773,590
Best Estimate
$522,658
WCAD Value
$550,683
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 $459,800 and $773,590. 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 $478,441

Adjusted +$46,629 for 174 sqft more living space. Net adjustment: +$46,629.

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 $459,800

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

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 $773,590

Adjusted +$171,240 for 639 sqft more living space and +$5,432 for being newer. Net adjustment: +$176,672.

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 $522,658

Adjusted -$22,510 for 84 sqft less living space and +$5,432 for being newer and -$18,697 for no pool. Net adjustment: -$35,775.

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 $526,236

Adjusted -$91,650 for 342 sqft less living space. Net adjustment: -$91,650.

The Neighborhood

This home is valued 22.0% 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
$550,683
Median
$451,534

This home is +22.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,908 across all districts. With a homestead exemption claimed, that drops to $8,556 — saving $1,352 per year. That's $713 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%$4,918
Round RockCity0.3720%$2,049
Williamson CountyCounty0.3694%$2,034
Austin Community Collegespecial0.1034%$569
Williamson County FM/RdCounty0.0443%$244
Upper Brushy Creek WCIDWater0.0170%$94
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,908

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $522,658 would pay approximately $3,262 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.

View full property details