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509 PURPLE SAGE DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,302 sqftBuilt 1984

Property at a Glance

This home is estimated between $275,014 and $293,985, with a best estimate of $280,420. That places the property below the R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN median of $281,358, in a neighborhood that declined 9.6% over the past year.

Estimated Value Range

$275,014 $293,985
Best Estimate
$280,420
WCAD Value
$292,788
High Confidence

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

Based on 5 comparable properties in R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN, this home's estimated market value is between $275,014 and $293,985. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1904 PURPLE SAGE CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,357 sqft Built 1983
Raw Value $285,319
Adjusted Value $275,014

Adjusted -$11,864 for 55 sqft less living space and +$1,559 for being newer. Net adjustment: -$10,305.

410 PURPLE SAGE DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,301 sqft Built 1984
Raw Value $280,204
Adjusted Value $280,420

Adjusted +$216 for 1 sqft more living space. Net adjustment: +$216.

1907 PURPLE SAGE CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,356 sqft Built 1983
Raw Value $285,330
Adjusted Value $275,241

Adjusted -$11,648 for 54 sqft less living space and +$1,559 for being newer. Net adjustment: -$10,089.

511 PURPLE SAGE DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,190 sqft Built 1984
Raw Value $269,825
Adjusted Value $293,985

Adjusted +$24,160 for 112 sqft more living space. Net adjustment: +$24,160.

1902 PURPLE SAGE CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,302 sqft Built 1983
Raw Value $281,055
Adjusted Value $282,614

Adjusted +$1,559 for being newer. Net adjustment: +$1,559.

The Neighborhood

This home is valued 4.1% above the R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN median of $281,358. With 1,006 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 9.6% over the past year.

R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN

typical
1,006 Properties
$281,358 Median Value
-9.6% YoY Change
2% Have Pool
84% Have Garage
This Home
$292,788
Median
$281,358

This home is +4.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $5,268 across all districts. With a homestead exemption claimed, that drops to $3,964 — saving $1,304 per year. That's $330 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%$2,615
Round RockCity0.3720%$1,089
Williamson CountyCounty0.3694%$1,082
Austin Community Collegespecial0.1034%$303
Williamson County FM/RdCounty0.0443%$130
Upper Brushy Creek WCIDWater0.0170%$50
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,268

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $280,420 would pay approximately $1,750 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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