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2805 W PIPER SONOMA CT, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

5 bed4 bath1,672 sqftBuilt 2007

Property at a Glance

This home is estimated between $446,851 and $622,520, with a best estimate of $477,126. 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

$446,851 $622,520
Best Estimate
$477,126
WCAD Value
$594,439
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 $446,851 and $622,520. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $473,193

Adjusted -$128,631 for 480 sqft less living space. Net adjustment: -$128,631.

2830 W PIPER SONOMA CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,090 sqft Built 2006
Raw Value $729,104
Adjusted Value $622,520

Adjusted -$112,016 for 418 sqft less living space and +$5,432 for being newer. Net adjustment: -$106,584.

2900 E PIPER SONOMA CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,062 sqft Built 2006
Raw Value $646,707
Adjusted Value $547,626

Adjusted -$104,513 for 390 sqft less living space and +$5,432 for being newer. Net adjustment: -$99,081.

2817 W PIPER SONOMA CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,112 sqft Built 2006
Raw Value $559,331
Adjusted Value $446,851

Adjusted -$117,912 for 440 sqft less living space and +$5,432 for being newer. Net adjustment: -$112,480.

2800 W PIPER SONOMA CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 4 bath 2,204 sqft Built 2006
Raw Value $614,260
Adjusted Value $477,126

Adjusted -$142,566 for 532 sqft less living space and +$5,432 for being newer. Net adjustment: -$137,134.

The Neighborhood

This home is valued 31.6% 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
$594,439
Median
$451,534

This home is +31.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,696 across all districts. With a homestead exemption claimed, that drops to $9,335 — saving $1,361 per year. That's $778 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%$5,309
Round RockCity0.3720%$2,211
Williamson CountyCounty0.3694%$2,196
Austin Community Collegespecial0.1034%$615
Williamson County FM/RdCounty0.0443%$264
Upper Brushy Creek WCIDWater0.0170%$101
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,696

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $477,126 would pay approximately $2,978 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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