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

2827 PIPER SONOMA PL, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,965 sqftBuilt 2007

Property at a Glance

This home is estimated between $456,324 and $838,190, with a best estimate of $526,060. 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

$456,324 $838,190
Best Estimate
$526,060
WCAD Value
$511,116
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 $456,324 and $838,190. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

2843 PIPER SONOMA PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,939 sqft Built 2006
Raw Value $658,756
Adjusted Value $671,156

Adjusted +$6,968 for 26 sqft more living space and +$5,432 for being newer. Net adjustment: +$12,400.

2834 PIPER SONOMA PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,926 sqft Built 2006
Raw Value $510,177
Adjusted Value $526,060

Adjusted +$10,451 for 39 sqft more living space and +$5,432 for being newer. Net adjustment: +$15,883.

2815 PIPER SONOMA PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,100 sqft Built 2007
Raw Value $606,386
Adjusted Value $838,190

Adjusted +$231,804 for 865 sqft more living space. Net adjustment: +$231,804.

2823 PIPER SONOMA PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,750 sqft Built 2006
Raw Value $476,497
Adjusted Value $520,848

Adjusted +$57,616 for 215 sqft more living space and +$5,432 for being newer and -$18,697 for no pool. Net adjustment: +$44,351.

2835 PIPER SONOMA PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 3,212 sqft Built 2007
Raw Value $522,515
Adjusted Value $456,324

Adjusted -$66,191 for 247 sqft less living space. Net adjustment: -$66,191.

The Neighborhood

This home is valued 13.2% 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

typical
1,029 Properties
$451,534 Median Value
-7.0% YoY Change
2% Have Pool
100% Have Garage
This Home
$511,116
Median
$451,534

This home is +13.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,196 across all districts. With a homestead exemption claimed, that drops to $7,852 — saving $1,344 per year. That's $654 per month a buyer should budget. The assessed value increased +3.3% vs the subdivision average of -7.0%. This above-average increase gives a protest opportunity score of 50 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$4,565
Round RockCity0.3720%$1,901
Williamson CountyCounty0.3694%$1,888
Austin Community Collegespecial0.1034%$528
Williamson County FM/RdCounty0.0443%$227
Upper Brushy Creek WCIDWater0.0170%$87
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,196
50 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $526,060 would pay approximately $3,284 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