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420 SOUTHERN CROSS DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed3 bath2,160 sqftBuilt 2009

Property at a Glance

This home is estimated between $524,991 and $882,640, with a best estimate of $852,856. 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

$524,991 $882,640
Best Estimate
$852,856
WCAD Value
$920,219
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 $524,991 and $882,640. 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 $857,294

Adjusted +$171,675 for 555 sqft more living space. Net adjustment: +$171,675.

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 $524,991

Adjusted -$214,362 for 693 sqft less living space and -$24,874 for being older. Net adjustment: -$239,236.

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 $882,640

Adjusted +$8,661 for 28 sqft more living space and -$12,437 for being older. Net adjustment: -$3,776.

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 $852,856

Adjusted +$28,149 for 91 sqft more living space. Net adjustment: +$28,149.

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 $835,693

Adjusted +$165,488 for 535 sqft more living space and -$24,874 for being older. Net adjustment: +$140,614.

The Neighborhood

This home is valued 17.8% 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

above average
399 Properties
$781,434 Median Value
+2.3% YoY Change
0% Have Pool
100% Have Garage
This Home
$920,219
Median
$781,434

This home is +17.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $18,442 across all districts. With a homestead exemption claimed, that drops to $17,022 — saving $1,420 per year. That's $1,419 per month a buyer should budget. The assessed value increased +6.4% vs the subdivision average of +2.3%. This above-average increase gives a protest opportunity score of 41 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$8,218
Brushy Creek MUDMUD0.3868%$3,560
Williamson CountyCounty0.3694%$3,400
Austin Community Collegespecial0.1034%$952
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$920
Brushy Creek MUD Defined AreaMUD0.0900%$828
Williamson County FM/RdCounty0.0443%$408
Upper Brushy Creek WCIDWater0.0170%$156
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$18,442
41 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $852,856 would pay approximately $5,324 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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