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312 NAVIGATOR DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed3 bath3,342 sqftBuilt 2013

Property at a Glance

This home is estimated between $990,369 and $1,304,340, with a best estimate of $1,257,080. 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

$990,369 $1,304,340
Best Estimate
$1,257,080
WCAD Value
$1,014,114
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 $990,369 and $1,304,340 should be treated as a rough guide.

Comparable Properties (5)

413 NAVIGATOR DR, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,825 sqft Built 2013
Raw Value $863,445
Adjusted Value $1,023,366

Adjusted +$159,921 for 517 sqft more living space. Net adjustment: +$159,921.

4 bed 3 bath 3,056 sqft Built 2020
Raw Value $1,302,932
Adjusted Value $1,304,340

Adjusted +$88,467 for 286 sqft more living space and -$87,059 for being older. Net adjustment: +$1,408.

4 bed 4 bath 2,824 sqft Built 2015
Raw Value $1,121,724
Adjusted Value $1,257,080

Adjusted +$160,230 for 518 sqft more living space and -$24,874 for being older. Net adjustment: +$135,356.

4 bed 2 bath 2,989 sqft Built 1993
Raw Value $632,439
Adjusted Value $990,369

Adjusted +$109,191 for 353 sqft more living space and +$248,739 for being newer. Net adjustment: +$357,930.

4 bed 3 bath 1,977 sqft Built 2004
Raw Value $730,770
Adjusted Value $1,264,931

Adjusted +$422,228 for 1,365 sqft more living space and +$111,933 for being newer. Net adjustment: +$534,161.

The Neighborhood

This home is valued 29.8% 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
$1,014,114
Median
$781,434

This home is +29.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $20,304 across all districts. With a homestead exemption claimed, that drops to $18,867 — saving $1,437 per year. That's $1,572 per month a buyer should budget. The assessed value increased +9.9% vs the subdivision average of +2.3%. This above-average increase gives a protest opportunity score of 58 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$9,048
Brushy Creek MUDMUD0.3868%$3,919
Williamson CountyCounty0.3694%$3,743
Austin Community Collegespecial0.1034%$1,048
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$1,013
Brushy Creek MUD Defined AreaMUD0.0900%$912
Williamson County FM/RdCounty0.0443%$449
Upper Brushy Creek WCIDWater0.0170%$172
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$20,304
58 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,257,080 would pay approximately $7,847 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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