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121 SOUTHERN CROSS DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath1,830 sqftBuilt 2011

Property at a Glance

This home is estimated between $494,329 and $805,437, with a best estimate of $775,652. That places the property below the R302609C - HIGHLAND HORIZON median of $781,434, in a neighborhood that appreciated 2.3% over the past year.

Estimated Value Range

$494,329 $805,437
Best Estimate
$775,652
WCAD Value
$514,129
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 $494,329 and $805,437. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

465 SOUTHERN CROSS DR, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,825 sqft Built 2013
Raw Value $859,021
Adjusted Value $526,369

Adjusted -$307,778 for 995 sqft less living space and -$24,874 for being older. Net adjustment: -$332,652.

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 $780,091

Adjusted +$69,598 for 225 sqft more living space and +$24,874 for being newer. Net adjustment: +$94,472.

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 $805,437

Adjusted -$93,416 for 302 sqft less living space and +$12,437 for being newer. Net adjustment: -$80,979.

220 SOUTHERN CROSS DR, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 3,027 sqft Built 2010
Raw Value $852,153
Adjusted Value $494,329

Adjusted -$370,261 for 1,197 sqft less living space and +$12,437 for being newer. Net adjustment: -$357,824.

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 $775,652

Adjusted -$73,929 for 239 sqft less living space and +$24,874 for being newer. Net adjustment: -$49,055.

The Neighborhood

This home is valued 34.2% below the R302609C - HIGHLAND HORIZON median of $781,434. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 2.3% over the past year.

R302609C - HIGHLAND HORIZON

below average
399 Properties
$781,434 Median Value
+2.3% YoY Change
0% Have Pool
100% Have Garage
This Home
$514,129
Median
$781,434

This home is -34.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,304 across all districts. With a homestead exemption claimed, that drops to $8,958 — saving $1,346 per year. That's $747 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%$4,592
Brushy Creek MUDMUD0.3868%$1,989
Williamson CountyCounty0.3694%$1,899
Austin Community Collegespecial0.1034%$532
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$514
Brushy Creek MUD Defined AreaMUD0.0900%$463
Williamson County FM/RdCounty0.0443%$228
Upper Brushy Creek WCIDWater0.0170%$87
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$10,304

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $775,652 would pay approximately $4,842 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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