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16508 CASTLETROY DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath1,849 sqftBuilt 2004

Property at a Glance

This home is estimated between $441,592 and $765,922, with a best estimate of $452,106. That places the property below the R250401D - AVERY RANCH EAST (PH. 1) median of $524,962, in a neighborhood that declined 2.2% over the past year.

Estimated Value Range

$441,592 $765,922
Best Estimate
$452,106
WCAD Value
$465,826
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R250401D - AVERY RANCH EAST (PH. 1). The estimated range of $441,592 and $765,922 should be treated as a rough guide.

Comparable Properties (5)

16425 CASTLETROY DR, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,181 sqft Built 2002
Raw Value $576,117
Adjusted Value $765,922

Adjusted +$204,665 for 668 sqft more living space and -$14,860 for being older. Net adjustment: +$189,805.

3 bed 2 bath 1,919 sqft Built 2005
Raw Value $480,557
Adjusted Value $466,540

Adjusted -$21,447 for 70 sqft less living space and +$7,430 for being newer. Net adjustment: -$14,017.

16409 CASTLETROY DR, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,872 sqft Built 2002
Raw Value $464,425
Adjusted Value $442,518

Adjusted -$7,047 for 23 sqft less living space and -$14,860 for being older. Net adjustment: -$21,907.

15823 DORMAN DR, AUSTIN, TX 78717
0.00 mi 100% similar
3 bed 2 bath 1,686 sqft Built 1998
Raw Value $436,231
Adjusted Value $441,592

Adjusted +$49,941 for 163 sqft more living space and -$44,580 for being older. Net adjustment: +$5,361.

3 bed 2 bath 2,281 sqft Built 2004
Raw Value $584,464
Adjusted Value $452,106

Adjusted -$132,358 for 432 sqft less living space. Net adjustment: -$132,358.

The Neighborhood

This home is valued 11.3% below the R250401D - AVERY RANCH EAST (PH. 1) median of $524,962. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 2.2% over the past year.

R250401D - AVERY RANCH EAST (PH. 1)

typical
323 Properties
$524,962 Median Value
-2.2% YoY Change
0% Have Pool
100% Have Garage
This Home
$465,826
Median
$524,962

This home is -11.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,090 across all districts. With a homestead exemption claimed, that drops to $7,265 — saving $1,825 per year. That's $605 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%$4,160
AustinCity0.5240%$2,441
Williamson CountyCounty0.3694%$1,721
Austin Community Collegespecial0.1034%$482
Williamson County FM/RdCounty0.0443%$206
Upper Brushy Creek WCIDWater0.0170%$79
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$9,090

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $452,106 would pay approximately $2,822 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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