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12121 HARPSTER BND, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed3 bath1,155 sqftBuilt 2016

Property at a Glance

This home is estimated between $265,598 and $645,108, with a best estimate of $443,279. That places the property below the L591503E - AVERY RANCH FAR WEST PH 1 median of $483,591, in a neighborhood that declined 4.9% over the past year.

Estimated Value Range

$265,598 $645,108
Best Estimate
$443,279
WCAD Value
$594,819
High Confidence

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

Based on 5 comparable properties in L591503E - AVERY RANCH FAR WEST PH 1, this home's estimated market value is between $265,598 and $645,108. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12013 HARPSTER BND, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,254 sqft Built 2016
Raw Value $624,266
Adjusted Value $583,310

Adjusted -$40,956 for 99 sqft less living space. Net adjustment: -$40,956.

11504 HARPSTER BND, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,044 sqft Built 2012
Raw Value $589,498
Adjusted Value $645,108

Adjusted +$45,921 for 111 sqft more living space and +$9,689 for being newer. Net adjustment: +$55,610.

12009 HARPSTER BND, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,886 sqft Built 2016
Raw Value $569,228
Adjusted Value $266,814

Adjusted -$302,414 for 731 sqft less living space. Net adjustment: -$302,414.

12125 HARPSTER BND, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,748 sqft Built 2016
Raw Value $510,921
Adjusted Value $265,598

Adjusted -$245,323 for 593 sqft less living space. Net adjustment: -$245,323.

12128 HARPSTER BND, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,355 sqft Built 2016
Raw Value $526,019
Adjusted Value $443,279

Adjusted -$82,740 for 200 sqft less living space. Net adjustment: -$82,740.

The Neighborhood

This home is valued 23.0% above the L591503E - AVERY RANCH FAR WEST PH 1 median of $483,591. With 1,612 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 4.9% over the past year.

L591503E - AVERY RANCH FAR WEST PH 1

above average
1,612 Properties
$483,591 Median Value
-4.9% YoY Change
0% Have Pool
100% Have Garage
This Home
$594,819
Median
$483,591

This home is +23.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,759 across all districts. With a homestead exemption claimed, that drops to $10,504 — saving $2,255 per year. That's $875 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
Leander ISDSchool1.0869%$6,465
AustinCity0.5240%$3,117
Williamson CountyCounty0.3694%$2,198
Austin Community Collegespecial0.1034%$615
Williamson County FM/RdCounty0.0443%$264
Upper Brushy Creek WCIDWater0.0170%$101
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.1451%$12,759

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $443,279 would pay approximately $2,767 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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