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402 PURPLE SAGE DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,838 sqftBuilt 1984

Property at a Glance

This home is estimated between $367,397 and $390,646, with a best estimate of $384,675. That places the property below the R120X - Round Rock West Above 45 - Duplex median of $434,714, in a neighborhood that declined 1.8% over the past year.

Estimated Value Range

$367,397 $390,646
Best Estimate
$384,675
WCAD Value
$388,787
Low Confidence

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

There are 5 comparable properties within range, but none are in R120X - Round Rock West Above 45 - Duplex. The estimated range of $367,397 and $390,646 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,644 sqft Built 1983
Raw Value $305,580
Adjusted Value $367,397

Adjusted +$39,446 for 194 sqft more living space and +$2,505 for being newer and +$19,866 for having a garage. Net adjustment: +$61,817.

3 bed 2 bath 1,436 sqft Built 1983
Raw Value $305,797
Adjusted Value $390,040

Adjusted +$81,738 for 402 sqft more living space and +$2,505 for being newer. Net adjustment: +$84,243.

3 bed 2 bath 1,426 sqft Built 1983
Raw Value $298,399
Adjusted Value $384,675

Adjusted +$83,771 for 412 sqft more living space and +$2,505 for being newer. Net adjustment: +$86,276.

3 bed 2 bath 1,401 sqft Built 1983
Raw Value $289,802
Adjusted Value $381,162

Adjusted +$88,855 for 437 sqft more living space and +$2,505 for being newer. Net adjustment: +$91,360.

3 bed 2 bath 1,346 sqft Built 1984
Raw Value $290,608
Adjusted Value $390,646

Adjusted +$100,038 for 492 sqft more living space. Net adjustment: +$100,038.

The Neighborhood

This home is valued 10.6% below the R120X - Round Rock West Above 45 - Duplex median of $434,714. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 1.8% over the past year.

R120X - Round Rock West Above 45 - Duplex

typical
295 Properties
$434,714 Median Value
-1.8% YoY Change
0% Have Pool
84% Have Garage
This Home
$388,787
Median
$434,714

This home is -10.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,995 across all districts. With a homestead exemption claimed, that drops to $5,673 — saving $1,322 per year. That's $473 per month a buyer should budget. The assessed value increased +11.0% vs the subdivision average of -1.8%. This above-average increase gives a protest opportunity score of 75 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$3,472
Round RockCity0.3720%$1,446
Williamson CountyCounty0.3694%$1,436
Austin Community Collegespecial0.1034%$402
Williamson County FM/RdCounty0.0443%$172
Upper Brushy Creek WCIDWater0.0170%$66
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,995
75 / 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 $384,675 would pay approximately $2,401 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 4/19/2026.

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