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1040 SONATA PL, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,173 sqftBuilt 2025

Property at a Glance

This home is estimated between $441,819 and $862,603, with a best estimate of $701,281. That places the property below the R294523A-Sauls Ranch East median of $852,382, in a neighborhood that appreciated 371.1% over the past year.

Estimated Value Range

$441,819 $862,603
Best Estimate
$701,281
WCAD Value
$682,933
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R294523A-Sauls Ranch East. The estimated range of $441,819 and $862,603 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 1,833 sqft Built 2015
Raw Value $721,243
Adjusted Value $862,603

Adjusted +$141,360 for 340 sqft more living space. Net adjustment: +$141,360.

4 bed 3 bath 1,833 sqft Built 2015
Raw Value $706,626
Adjusted Value $847,986

Adjusted +$141,360 for 340 sqft more living space. Net adjustment: +$141,360.

4 bed 4 bath 2,244 sqft Built 1997
Raw Value $471,338
Adjusted Value $441,819

Adjusted -$29,519 for 71 sqft less living space. Net adjustment: -$29,519.

4 bed 2 bath 2,092 sqft Built 1997
Raw Value $448,257
Adjusted Value $481,934

Adjusted +$33,677 for 81 sqft more living space. Net adjustment: +$33,677.

3 bed 2 bath 1,865 sqft Built 2015
Raw Value $573,225
Adjusted Value $701,281

Adjusted +$128,056 for 308 sqft more living space. Net adjustment: +$128,056.

The Neighborhood

This home is valued 19.9% below the R294523A-Sauls Ranch East median of $852,382. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 371.1% over the past year.

R294523A-Sauls Ranch East

below average
144 Properties
$852,382 Median Value
+371.1% YoY Change
1% Have Pool
100% Have Garage
This Home
$682,933
Median
$852,382

This home is -19.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $12,288 across all districts. With a homestead exemption claimed, that drops to $10,911 — saving $1,377 per year. That's $909 per month a buyer should budget. The assessed value increased +755.8% vs the subdivision average of +371.1%. This above-average increase gives a protest opportunity score of 100 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$6,099
Round RockCity0.3720%$2,541
Williamson CountyCounty0.3694%$2,523
Austin Community Collegespecial0.1034%$706
Williamson County FM/RdCounty0.0443%$303
Upper Brushy Creek WCIDWater0.0170%$116
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$12,288
100 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $701,281 would pay approximately $4,377 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 4/17/2026.

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