Beta Williamson County, TX only — data and coverage are limited during early access.

16220 FINCASTLE DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

5 bed4 bath2,603 sqftBuilt 2005

Property at a Glance

This home is estimated between $670,868 and $1,026,837, with a best estimate of $690,164. That places the property below the R250501D - AVERY RANCH EAST ALL SECTIONS PHASE 2 median of $798,474, in a neighborhood that declined 1.5% over the past year.

Estimated Value Range

$670,868 $1,026,837
Best Estimate
$690,164
WCAD Value
$930,875
High Confidence

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

Based on 5 comparable properties in R250501D - AVERY RANCH EAST ALL SECTIONS PHASE 2, this home's estimated market value is between $670,868 and $1,026,837. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

16300 FINCASTLE DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,704 sqft Built 2005
Raw Value $733,318
Adjusted Value $697,017

Adjusted -$36,301 for 101 sqft less living space. Net adjustment: -$36,301.

16225 ALMADEN DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
3 bed 2 bath 2,569 sqft Built 2005
Raw Value $677,944
Adjusted Value $690,164

Adjusted +$12,220 for 34 sqft more living space. Net adjustment: +$12,220.

16221 ALMADEN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,587 sqft Built 2005
Raw Value $676,703
Adjusted Value $682,454

Adjusted +$5,751 for 16 sqft more living space. Net adjustment: +$5,751.

16304 FINCASTLE DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,119 sqft Built 2005
Raw Value $852,882
Adjusted Value $1,026,837

Adjusted +$173,955 for 484 sqft more living space. Net adjustment: +$173,955.

16217 FINCASTLE DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
4 bed 3 bath 3,349 sqft Built 2005
Raw Value $938,989
Adjusted Value $670,868

Adjusted -$268,121 for 746 sqft less living space. Net adjustment: -$268,121.

The Neighborhood

This home is valued 16.6% above the R250501D - AVERY RANCH EAST ALL SECTIONS PHASE 2 median of $798,474. With 455 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 1.5% over the past year.

R250501D - AVERY RANCH EAST ALL SECTIONS PHASE 2

above average
455 Properties
$798,474 Median Value
-1.5% YoY Change
0% Have Pool
100% Have Garage
This Home
$930,875
Median
$798,474

This home is +16.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $18,164 across all districts. With a homestead exemption claimed, that drops to $15,766 — saving $2,398 per year. That's $1,314 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%$8,314
AustinCity0.5240%$4,878
Williamson CountyCounty0.3694%$3,439
Austin Community Collegespecial0.1034%$963
Williamson County FM/RdCounty0.0443%$413
Upper Brushy Creek WCIDWater0.0170%$158
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$18,164

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $690,164 would pay approximately $4,308 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.

View full property details