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121 NAVIGATOR DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath2,209 sqftBuilt 2010

Property at a Glance

This home is estimated between $517,665 and $668,163, with a best estimate of $635,590. 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

$517,665 $668,163
Best Estimate
$635,590
WCAD Value
$581,676
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R302609C - HIGHLAND HORIZON. The estimated range of $517,665 and $668,163 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,281 sqft Built 2004
Raw Value $584,464
Adjusted Value $636,815

Adjusted -$22,271 for 72 sqft less living space and +$74,622 for being newer. Net adjustment: +$52,351.

3 bed 2 bath 2,375 sqft Built 2014
Raw Value $618,761
Adjusted Value $517,665

Adjusted -$51,348 for 166 sqft less living space and -$49,748 for being older. Net adjustment: -$101,096.

3 bed 2 bath 1,919 sqft Built 2005
Raw Value $480,557
Adjusted Value $632,446

Adjusted +$89,704 for 290 sqft more living space and +$62,185 for being newer. Net adjustment: +$151,889.

413 NAVIGATOR DR, AUSTIN, TX 78717
0.00 mi 97% similar Same subdivision
4 bed 3 bath 2,825 sqft Built 2013
Raw Value $863,445
Adjusted Value $635,590

Adjusted -$190,544 for 616 sqft less living space and -$37,311 for being older. Net adjustment: -$227,855.

3 bed 2 bath 1,872 sqft Built 2002
Raw Value $464,425
Adjusted Value $668,163

Adjusted +$104,242 for 337 sqft more living space and +$99,496 for being newer. Net adjustment: +$203,738.

The Neighborhood

This home is valued 25.6% 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
$581,676
Median
$781,434

This home is -25.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $11,657 across all districts. With a homestead exemption claimed, that drops to $10,300 — saving $1,357 per year. That's $858 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%$5,195
Brushy Creek MUDMUD0.3868%$2,250
Williamson CountyCounty0.3694%$2,149
Austin Community Collegespecial0.1034%$601
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$582
Brushy Creek MUD Defined AreaMUD0.0900%$524
Williamson County FM/RdCounty0.0443%$258
Upper Brushy Creek WCIDWater0.0170%$99
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$11,657

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $635,590 would pay approximately $3,967 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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