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2839 PIPER SONOMA PL, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

5 bed4 bath1,661 sqftBuilt 2006

Property at a Glance

This home is estimated between $416,744 and $627,975, with a best estimate of $516,624. 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

$416,744 $627,975
Best Estimate
$516,624
WCAD Value
$650,658
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 $416,744 and $627,975. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

2831 PIPER SONOMA PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 4 bath 1,636 sqft Built 2006
Raw Value $509,924
Adjusted Value $516,624

Adjusted +$6,700 for 25 sqft more living space. Net adjustment: +$6,700.

2819 PIPER SONOMA PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,050 sqft Built 2006
Raw Value $520,989
Adjusted Value $416,744

Adjusted -$104,245 for 389 sqft less living space. Net adjustment: -$104,245.

2838 PIPER SONOMA PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 4 bath 2,204 sqft Built 2006
Raw Value $625,448
Adjusted Value $479,934

Adjusted -$145,514 for 543 sqft less living space. Net adjustment: -$145,514.

2812 FOUNTAIN GROVE CV, ROUND ROCK, TX 78665
0.04 mi 100% similar Same subdivision
4 bed 3 bath 1,579 sqft Built 2007
Raw Value $611,433
Adjusted Value $627,975

Adjusted +$21,974 for 82 sqft more living space and -$5,432 for being older. Net adjustment: +$16,542.

2800 FOUNTAIN GROVE CV, ROUND ROCK, TX 78665
0.04 mi 100% similar Same subdivision
5 bed 4 bath 1,649 sqft Built 2007
Raw Value $595,492
Adjusted Value $593,276

Adjusted +$3,216 for 12 sqft more living space and -$5,432 for being older. Net adjustment: -$2,216.

The Neighborhood

This home is valued 44.1% 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
$650,658
Median
$451,534

This home is +44.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,707 across all districts. With a homestead exemption claimed, that drops to $10,337 — saving $1,370 per year. That's $861 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%$5,811
Round RockCity0.3720%$2,420
Williamson CountyCounty0.3694%$2,404
Austin Community Collegespecial0.1034%$673
Williamson County FM/RdCounty0.0443%$288
Upper Brushy Creek WCIDWater0.0170%$111
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$11,707

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $516,624 would pay approximately $3,225 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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