Beta Williamson County, TX only — data and coverage are limited during early access.

101 SOUTHERN CROSS DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath1,866 sqftBuilt 2010

Property at a Glance

This home is estimated between $397,018 and $835,432, with a best estimate of $559,276. 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

$397,018 $835,432
Best Estimate
$559,276
WCAD Value
$519,479
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 $397,018 and $835,432. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

108 BUOY LN, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,233 sqft Built 2011
Raw Value $576,413
Adjusted Value $450,454

Adjusted -$113,522 for 367 sqft less living space and -$12,437 for being older. Net adjustment: -$125,959.

108 LONGITUDE TRL, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,825 sqft Built 2010
Raw Value $878,836
Adjusted Value $582,194

Adjusted -$296,642 for 959 sqft less living space. Net adjustment: -$296,642.

109 LATITUDE LN, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,586 sqft Built 2009
Raw Value $736,384
Adjusted Value $835,432

Adjusted +$86,611 for 280 sqft more living space and +$12,437 for being newer. Net adjustment: +$99,048.

100 STARBOARD CT, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,989 sqft Built 2013
Raw Value $781,700
Adjusted Value $397,018

Adjusted -$347,371 for 1,123 sqft less living space and -$37,311 for being older. Net adjustment: -$384,682.

104 MARITIME WAY, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,886 sqft Built 2010
Raw Value $565,462
Adjusted Value $559,276

Adjusted -$6,186 for 20 sqft less living space. Net adjustment: -$6,186.

The Neighborhood

This home is valued 33.5% 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
$519,479
Median
$781,434

This home is -33.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,411 across all districts. With a homestead exemption claimed, that drops to $9,065 — saving $1,346 per year. That's $755 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%$4,639
Brushy Creek MUDMUD0.3868%$2,010
Williamson CountyCounty0.3694%$1,919
Austin Community Collegespecial0.1034%$537
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$519
Brushy Creek MUD Defined AreaMUD0.0900%$468
Williamson County FM/RdCounty0.0443%$230
Upper Brushy Creek WCIDWater0.0170%$88
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$10,411

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $559,276 would pay approximately $3,491 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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