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15320 SUNNINGDALE ST, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed3 bath2,846 sqftBuilt 2007

Property at a Glance

This home is estimated between $1,177,516 and $1,394,036, with a best estimate of $1,341,124. That places the property above the L572601A - Avery Estates & GOLF CLUB @ AVERY RANCH median of $1,122,350, in a neighborhood that appreciated 11.4% over the past year.

Estimated Value Range

$1,177,516 $1,394,036
Best Estimate
$1,341,124
WCAD Value
$1,359,071
High Confidence

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

Based on 5 comparable properties in L572601A - Avery Estates & GOLF CLUB @ AVERY RANCH, this home's estimated market value is between $1,177,516 and $1,394,036. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15316 SUNNINGDALE ST, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
5 bed 4 bath 2,812 sqft Built 2001
Raw Value $1,325,239
Adjusted Value $1,341,124

Adjusted +$15,885 for 34 sqft more living space. Net adjustment: +$15,885.

15312 SUNNINGDALE ST, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,569 sqft Built 2004
Raw Value $1,179,115
Adjusted Value $1,308,533

Adjusted +$129,418 for 277 sqft more living space. Net adjustment: +$129,418.

15317 SUNNINGDALE ST, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
5 bed 4 bath 3,117 sqft Built 2007
Raw Value $1,304,131
Adjusted Value $1,177,516

Adjusted -$126,615 for 271 sqft less living space. Net adjustment: -$126,615.

15313 SUNNINGDALE ST, AUSTIN, TX 78717
0.05 mi 100% similar Same subdivision
4 bed 3 bath 2,116 sqft Built 2004
Raw Value $1,052,969
Adjusted Value $1,394,036

Adjusted +$341,067 for 730 sqft more living space. Net adjustment: +$341,067.

15308 SUNNINGDALE ST, AUSTIN, TX 78717
0.06 mi 100% similar Same subdivision
5 bed 4 bath 3,064 sqft Built 2002
Raw Value $1,459,459
Adjusted Value $1,357,606

Adjusted -$101,853 for 218 sqft less living space. Net adjustment: -$101,853.

The Neighborhood

This home is valued 21.1% above the L572601A - Avery Estates & GOLF CLUB @ AVERY RANCH median of $1,122,350. With 146 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 11.4% over the past year.

L572601A - Avery Estates & GOLF CLUB @ AVERY RANCH

above average
146 Properties
$1,122,350 Median Value
+11.4% YoY Change
1% Have Pool
100% Have Garage
This Home
$1,359,071
Median
$1,122,350

This home is +21.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $27,936 across all districts. With a homestead exemption claimed, that drops to $24,808 — saving $3,128 per year. That's $2,067 per month a buyer should budget. The assessed value increased +11.7% vs the subdivision average of +11.4%. This increase gives a protest opportunity score of 37 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Leander ISDSchool1.0869%$14,155
AustinCity0.5240%$6,824
Williamson CountyCounty0.3694%$4,811
Austin Community Collegespecial0.1034%$1,347
Williamson County FM/RdCounty0.0443%$577
Upper Brushy Creek WCIDWater0.0170%$221
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.1451%$27,936
37 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,341,124 would pay approximately $8,371 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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