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424 SOUTHERN CROSS DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed3 bath2,087 sqftBuilt 2009

Property at a Glance

This home is estimated between $502,411 and $860,059, with a best estimate of $830,275. That places the property above the R302609C - HIGHLAND HORIZON median of $781,434, in a neighborhood that appreciated 2.3% over the past year.

Estimated Value Range

$502,411 $860,059
Best Estimate
$830,275
WCAD Value
$891,353
High Confidence

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

Based on 5 comparable properties in R302609C - HIGHLAND HORIZON, this home's estimated market value is between $502,411 and $860,059. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

200 SOUTHERN CROSS DR, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,605 sqft Built 2009
Raw Value $685,619
Adjusted Value $834,713

Adjusted +$149,094 for 482 sqft more living space. Net adjustment: +$149,094.

205 SOUTHERN CROSS DR, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,853 sqft Built 2011
Raw Value $764,227
Adjusted Value $502,411

Adjusted -$236,942 for 766 sqft less living space and -$24,874 for being older. Net adjustment: -$261,816.

449 SOUTHERN CROSS DR, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,132 sqft Built 2010
Raw Value $886,416
Adjusted Value $860,059

Adjusted -$13,920 for 45 sqft less living space and -$12,437 for being older. Net adjustment: -$26,357.

228 SOUTHERN CROSS DR, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,069 sqft Built 2009
Raw Value $824,707
Adjusted Value $830,275

Adjusted +$5,568 for 18 sqft more living space. Net adjustment: +$5,568.

120 SOUTHERN CROSS DR, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,625 sqft Built 2011
Raw Value $695,079
Adjusted Value $813,113

Adjusted +$142,908 for 462 sqft more living space and -$24,874 for being older. Net adjustment: +$118,034.

The Neighborhood

This home is valued 14.1% above the R302609C - HIGHLAND HORIZON median of $781,434. With 399 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 2.3% over the past year.

R302609C - HIGHLAND HORIZON

typical
399 Properties
$781,434 Median Value
+2.3% YoY Change
0% Have Pool
100% Have Garage
This Home
$891,353
Median
$781,434

This home is +14.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $17,864 across all districts. With a homestead exemption claimed, that drops to $16,449 — saving $1,415 per year. That's $1,371 per month a buyer should budget. The assessed value increased +6.2% vs the subdivision average of +2.3%. This above-average increase gives a protest opportunity score of 40 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$7,961
Brushy Creek MUDMUD0.3868%$3,448
Williamson CountyCounty0.3694%$3,293
Austin Community Collegespecial0.1034%$922
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$891
Brushy Creek MUD Defined AreaMUD0.0900%$802
Williamson County FM/RdCounty0.0443%$395
Upper Brushy Creek WCIDWater0.0170%$152
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$17,864
40 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $830,275 would pay approximately $5,183 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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