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

8508 PORTAGE CV, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath1,680 sqftBuilt 1986

Property at a Glance

This home is estimated between $216,528 and $688,711, with a best estimate of $464,223. That places the property below the R230592E - WOODS / MEADOWS OF BRUSHY CREEK median of $534,481, in a neighborhood that declined 2.4% over the past year.

Estimated Value Range

$216,528 $688,711
Best Estimate
$464,223
WCAD Value
$443,149
High Confidence

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

Based on 5 comparable properties in R230592E - WOODS / MEADOWS OF BRUSHY CREEK, this home's estimated market value is between $216,528 and $688,711. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8503 E POTOSI CV, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,681 sqft Built 1986
Raw Value $575,769
Adjusted Value $596,841

Adjusted -$344 for 1 sqft less living space and +$21,416 for having a garage. Net adjustment: +$21,072.

8503 PORTAGE CV, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,179 sqft Built 1994
Raw Value $470,200
Adjusted Value $216,528

Adjusted -$171,739 for 499 sqft less living space and -$81,933 for being older. Net adjustment: -$253,672.

8509 POTOSI CV, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,269 sqft Built 1986
Raw Value $534,308
Adjusted Value $353,010

Adjusted -$202,714 for 589 sqft less living space and +$21,416 for having a garage. Net adjustment: -$181,298.

8506 PORTAGE CV, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,080 sqft Built 1986
Raw Value $460,795
Adjusted Value $688,711

Adjusted +$206,500 for 600 sqft more living space and +$21,416 for having a garage. Net adjustment: +$227,916.

8507 PORTAGE CV, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,442 sqft Built 1986
Raw Value $382,311
Adjusted Value $464,223

Adjusted +$81,912 for 238 sqft more living space. Net adjustment: +$81,912.

The Neighborhood

This home is valued 17.1% below the R230592E - WOODS / MEADOWS OF BRUSHY CREEK median of $534,481. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 2.4% over the past year.

R230592E - WOODS / MEADOWS OF BRUSHY CREEK

below average
1,552 Properties
$534,481 Median Value
-2.4% YoY Change
2% Have Pool
95% Have Garage
This Home
$443,149
Median
$534,481

This home is -17.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,482 across all districts. With a homestead exemption claimed, that drops to $7,150 — saving $1,332 per year. That's $596 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%$3,958
Brushy Creek MUDMUD0.3868%$1,714
Williamson CountyCounty0.3694%$1,637
Austin Community Collegespecial0.1034%$458
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$443
Williamson County FM/RdCounty0.0443%$196
Upper Brushy Creek WCIDWater0.0170%$75
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$8,482

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $464,223 would pay approximately $2,898 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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