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

177 ARCHIPELAGO TRL, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed3 bath1,605 sqftBuilt 2011

Property at a Glance

This home is estimated between $372,622 and $796,786, with a best estimate of $419,846. That places the property below the R302609C - HIGHLAND HORIZON median of $781,434, in a neighborhood that appreciated 2.3% over the past year.

Estimated Value Range

$372,622 $796,786
Best Estimate
$419,846
WCAD Value
$742,618
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $372,622 and $796,786. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

216 ARCHIPELAGO TRL, AUSTIN, TX 78717
0.00 mi 96% similar Same subdivision
3 bed 2 bath 2,195 sqft Built 2012
Raw Value $567,560
Adjusted Value $372,622

Adjusted -$182,501 for 590 sqft less living space and -$12,437 for being older. Net adjustment: -$194,938.

160 ARCHIPELAGO TRL, AUSTIN, TX 78717
0.00 mi 95% similar Same subdivision
4 bed 4 bath 3,020 sqft Built 2012
Raw Value $869,977
Adjusted Value $419,846

Adjusted -$437,694 for 1,415 sqft less living space and -$12,437 for being older. Net adjustment: -$450,131.

217 LONGITUDE TRL, AUSTIN, TX 78717
0.00 mi 91% similar Same subdivision
3 bed 2 bath 2,825 sqft Built 2011
Raw Value $804,383
Adjusted Value $427,007

Adjusted -$377,376 for 1,220 sqft less living space. Net adjustment: -$377,376.

157 ARCHIPELAGO TRL, AUSTIN, TX 78717
0.00 mi 91% similar Same subdivision
3 bed 2 bath 2,763 sqft Built 2013
Raw Value $780,864
Adjusted Value $397,792

Adjusted -$358,198 for 1,158 sqft less living space and -$24,874 for being older. Net adjustment: -$383,072.

3 bed 2 bath 1,464 sqft Built 2003
Raw Value $653,675
Adjusted Value $796,786

Adjusted +$43,615 for 141 sqft more living space and +$99,496 for being newer. Net adjustment: +$143,111.

The Neighborhood

This home is valued 5.0% below the R302609C - HIGHLAND HORIZON median of $781,434. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 2.3% over the past year.

R302609C - HIGHLAND HORIZON

typical
399 Properties
$781,434 Median Value
+2.3% YoY Change
0% Have Pool
100% Have Garage
This Home
$742,618
Median
$781,434

This home is -5.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $14,747 across all districts. With a homestead exemption claimed, that drops to $13,360 — saving $1,387 per year. That's $1,113 per month a buyer should budget. The assessed value increased +11.0% vs the subdivision average of +2.3%. This above-average increase gives a protest opportunity score of 74 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$6,572
Brushy Creek MUDMUD0.3868%$2,846
Williamson CountyCounty0.3694%$2,718
Austin Community Collegespecial0.1034%$761
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$736
Brushy Creek MUD Defined AreaMUD0.0900%$662
Williamson County FM/RdCounty0.0443%$326
Upper Brushy Creek WCIDWater0.0170%$125
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$14,747
74 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $419,846 would pay approximately $2,621 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