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16212 CASTLEROY DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath1,994 sqftBuilt 2003

Property at a Glance

This home is estimated between $340,849 and $817,778, with a best estimate of $503,962. 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

$340,849 $817,778
Best Estimate
$503,962
WCAD Value
$519,505
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 $340,849 and $817,778 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 $503,962

Adjusted -$87,932 for 287 sqft less living space and +$7,430 for being newer. Net adjustment: -$80,502.

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 $817,778

Adjusted +$249,091 for 813 sqft more living space and -$7,430 for being older. Net adjustment: +$241,661.

3 bed 2 bath 1,919 sqft Built 2005
Raw Value $480,557
Adjusted Value $518,396

Adjusted +$22,979 for 75 sqft more living space and +$14,860 for being newer. Net adjustment: +$37,839.

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 $494,374

Adjusted +$37,379 for 122 sqft more living space and -$7,430 for being older. Net adjustment: +$29,949.

3 bed 2 bath 2,030 sqft Built 1990
Raw Value $448,470
Adjusted Value $340,849

Adjusted -$11,030 for 36 sqft less living space and -$96,591 for being older. Net adjustment: -$107,621.

The Neighborhood

This home is in line with the R250401D - AVERY RANCH EAST (PH. 1) median of $524,962. 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
$519,505
Median
$524,962

This home is -1.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,137 across all districts. With a homestead exemption claimed, that drops to $8,246 — saving $1,891 per year. That's $687 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%$4,640
AustinCity0.5240%$2,722
Williamson CountyCounty0.3694%$1,919
Austin Community Collegespecial0.1034%$537
Williamson County FM/RdCounty0.0443%$230
Upper Brushy Creek WCIDWater0.0170%$88
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$10,137

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $503,962 would pay approximately $3,146 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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