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16425 CASTLETROY DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath1,181 sqftBuilt 2002

Property at a Glance

This home is estimated between $251,787 and $630,757, with a best estimate of $565,278. That places the property above 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

$251,787 $630,757
Best Estimate
$565,278
WCAD Value
$576,117
Low Confidence

Based on 5 comparable properties(1 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 $251,787 and $630,757 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,280 sqft Built 2005
Raw Value $638,799
Adjusted Value $630,757

Adjusted -$30,332 for 99 sqft less living space and +$22,290 for being newer. Net adjustment: -$8,042.

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 $252,713

Adjusted -$211,712 for 691 sqft less living space. Net adjustment: -$211,712.

4 bed 2 bath 1,243 sqft Built 1993
Raw Value $651,144
Adjusted Value $565,278

Adjusted -$18,996 for 62 sqft less living space and -$66,870 for being older. Net adjustment: -$85,866.

4 bed 2 bath 1,322 sqft Built 1996
Raw Value $655,445
Adjusted Value $567,665

Adjusted -$43,200 for 141 sqft less living space and -$44,580 for being older. Net adjustment: -$87,780.

3 bed 2 bath 1,686 sqft Built 1998
Raw Value $436,231
Adjusted Value $251,787

Adjusted -$154,724 for 505 sqft less living space and -$29,720 for being older. Net adjustment: -$184,444.

The Neighborhood

This home is valued 9.7% above the R250401D - AVERY RANCH EAST (PH. 1) median of $524,962. With 323 homes in the subdivision, the property sits in the upper tier. 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
$576,117
Median
$524,962

This home is +9.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,242 across all districts. With a homestead exemption claimed, that drops to $9,281 — saving $1,961 per year. That's $773 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%$5,145
AustinCity0.5240%$3,019
Williamson CountyCounty0.3694%$2,128
Austin Community Collegespecial0.1034%$596
Williamson County FM/RdCounty0.0443%$255
Upper Brushy Creek WCIDWater0.0170%$98
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$11,242

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $565,278 would pay approximately $3,528 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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