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

109 HIGHLAND HORIZON, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath1,866 sqftBuilt 2009

Property at a Glance

This home is estimated between $508,560 and $775,999, with a best estimate of $715,657. 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

$508,560 $775,999
Best Estimate
$715,657
WCAD Value
$550,725
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 $508,560 and $775,999. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

440 HIGHLAND HORIZON, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,270 sqft Built 2010
Raw Value $913,403
Adjusted Value $775,999

Adjusted -$124,967 for 404 sqft less living space and -$12,437 for being older. Net adjustment: -$137,404.

309 HIGHLAND HORIZON, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,589 sqft Built 2010
Raw Value $642,411
Adjusted Value $715,657

Adjusted +$85,683 for 277 sqft more living space and -$12,437 for being older. Net adjustment: +$73,246.

204 HIGHLAND HORIZON, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,079 sqft Built 2010
Raw Value $586,883
Adjusted Value $508,560

Adjusted -$65,886 for 213 sqft less living space and -$12,437 for being older. Net adjustment: -$78,323.

209 HIGHLAND HORIZON, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,625 sqft Built 2010
Raw Value $653,092
Adjusted Value $715,202

Adjusted +$74,547 for 241 sqft more living space and -$12,437 for being older. Net adjustment: +$62,110.

441 HIGHLAND HORIZON, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,077 sqft Built 2009
Raw Value $831,304
Adjusted Value $766,037

Adjusted -$65,267 for 211 sqft less living space. Net adjustment: -$65,267.

The Neighborhood

This home is valued 29.5% 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
$550,725
Median
$781,434

This home is -29.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $11,037 across all districts. With a homestead exemption claimed, that drops to $9,685 — saving $1,352 per year. That's $807 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%$4,919
Brushy Creek MUDMUD0.3868%$2,130
Williamson CountyCounty0.3694%$2,035
Austin Community Collegespecial0.1034%$569
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$551
Brushy Creek MUD Defined AreaMUD0.0900%$496
Williamson County FM/RdCounty0.0443%$244
Upper Brushy Creek WCIDWater0.0170%$94
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$11,037

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $715,657 would pay approximately $4,467 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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