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604 PURPLE SAGE DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,424 sqftBuilt 1983

Property at a Glance

This home is estimated between $296,333 and $365,336, with a best estimate of $324,116. That places the property above 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

$296,333 $365,336
Best Estimate
$324,116
WCAD Value
$292,815
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $296,333 and $365,336. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

603 BUFFALO PASS, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,398 sqft Built 1975
Raw Value $279,414
Adjusted Value $297,495

Adjusted +$5,609 for 26 sqft more living space and +$12,472 for being newer. Net adjustment: +$18,081.

608 BUFFALO PASS, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,192 sqft Built 1977
Raw Value $264,717
Adjusted Value $324,116

Adjusted +$50,045 for 232 sqft more living space and +$9,354 for being newer. Net adjustment: +$59,399.

600 BUFFALO PASS, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,128 sqft Built 1977
Raw Value $265,342
Adjusted Value $338,547

Adjusted +$63,851 for 296 sqft more living space and +$9,354 for being newer. Net adjustment: +$73,205.

3 bed 2 bath 1,484 sqft Built 1980
Raw Value $373,602
Adjusted Value $365,336

Adjusted -$12,943 for 60 sqft less living space and +$4,677 for being newer. Net adjustment: -$8,266.

601 BUFFALO PASS, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,430 sqft Built 1975
Raw Value $292,681
Adjusted Value $296,333

Adjusted -$1,294 for 6 sqft less living space and +$12,472 for being newer and -$7,526 for no pool. Net adjustment: +$3,652.

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
$292,815
Median
$281,358

This home is +4.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $5,269 across all districts. With a homestead exemption claimed, that drops to $3,964 — saving $1,305 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%$5,269

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $324,116 would pay approximately $2,023 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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