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16620 DALMAHOY DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath1,351 sqftBuilt 2004

Property at a Glance

This home is estimated between $289,939 and $667,982, with a best estimate of $604,890. 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

$289,939 $667,982
Best Estimate
$604,890
WCAD Value
$697,368
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 $289,939 and $667,982 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 $667,982

Adjusted +$21,753 for 71 sqft more living space and +$7,430 for being newer. Net adjustment: +$29,183.

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 $613,342

Adjusted +$52,085 for 170 sqft more living space and -$14,860 for being older. Net adjustment: +$37,225.

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 $289,939

Adjusted -$159,626 for 521 sqft less living space and -$14,860 for being older. Net adjustment: -$174,486.

4 bed 2 bath 1,322 sqft Built 1996
Raw Value $655,445
Adjusted Value $604,890

Adjusted +$8,885 for 29 sqft more living space and -$59,440 for being older. Net adjustment: -$50,555.

4 bed 2 bath 1,376 sqft Built 1993
Raw Value $574,008
Adjusted Value $484,617

Adjusted -$7,660 for 25 sqft less living space and -$81,731 for being older. Net adjustment: -$89,391.

The Neighborhood

This home is valued 32.8% 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)

above average
323 Properties
$524,962 Median Value
-2.2% YoY Change
0% Have Pool
100% Have Garage
This Home
$697,368
Median
$524,962

This home is +32.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,608 across all districts. With a homestead exemption claimed, that drops to $11,498 — saving $2,110 per year. That's $958 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%$6,228
AustinCity0.5240%$3,654
Williamson CountyCounty0.3694%$2,576
Austin Community Collegespecial0.1034%$721
Williamson County FM/RdCounty0.0443%$309
Upper Brushy Creek WCIDWater0.0170%$119
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$13,608

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $604,890 would pay approximately $3,776 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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