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

15517 FERNHILL DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath2,363 sqftBuilt 2004

Property at a Glance

This home is estimated between $595,528 and $938,628, with a best estimate of $846,412. That places the property above the R251501D - Avery Ranch South median of $708,305, in a neighborhood that declined 3.8% over the past year.

Estimated Value Range

$595,528 $938,628
Best Estimate
$846,412
WCAD Value
$609,935
High Confidence

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

Based on 5 comparable properties in R251501D - Avery Ranch South, this home's estimated market value is between $595,528 and $938,628. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15513 FERNHILL DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
4 bed 3 bath 2,200 sqft Built 2004
Raw Value $799,327
Adjusted Value $856,564

Adjusted +$57,237 for 163 sqft more living space. Net adjustment: +$57,237.

9625 MORGAN CREEK DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
4 bed 2 bath 2,120 sqft Built 2004
Raw Value $761,083
Adjusted Value $846,412

Adjusted +$85,329 for 243 sqft more living space. Net adjustment: +$85,329.

15520 FERNHILL DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
3 bed 2 bath 2,503 sqft Built 2005
Raw Value $646,082
Adjusted Value $595,528

Adjusted -$49,161 for 140 sqft less living space and -$1,393 for being older. Net adjustment: -$50,554.

9701 MORGAN CREEK DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
3 bed 2 bath 2,499 sqft Built 2006
Raw Value $755,311
Adjusted Value $704,769

Adjusted -$47,756 for 136 sqft less living space and -$2,786 for being older. Net adjustment: -$50,542.

15508 FERNHILL DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,919 sqft Built 2005
Raw Value $784,112
Adjusted Value $938,628

Adjusted +$155,909 for 444 sqft more living space and -$1,393 for being older. Net adjustment: +$154,516.

The Neighborhood

This home is valued 13.9% below the R251501D - Avery Ranch South median of $708,305. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 3.8% over the past year.

R251501D - Avery Ranch South

typical
635 Properties
$708,305 Median Value
-3.8% YoY Change
1% Have Pool
100% Have Garage
This Home
$609,935
Median
$708,305

This home is -13.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $11,902 across all districts. With a homestead exemption claimed, that drops to $9,899 — saving $2,003 per year. That's $825 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%$5,447
AustinCity0.5240%$3,196
Williamson CountyCounty0.3694%$2,253
Austin Community Collegespecial0.1034%$631
Williamson County FM/RdCounty0.0443%$270
Upper Brushy Creek WCIDWater0.0170%$104
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$11,902

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $846,412 would pay approximately $5,283 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