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

15300 SUNNINGDALE ST, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed3 bath2,520 sqftBuilt 2003

Property at a Glance

This home is estimated between $1,112,899 and $1,261,594, with a best estimate of $1,205,294. 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

$1,112,899 $1,261,594
Best Estimate
$1,205,294
WCAD Value
$1,237,321
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 $1,112,899 and $1,261,594. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15216 SUNNINGDALE ST, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
4 bed 3 bath 3,067 sqft Built 2002
Raw Value $1,368,465
Adjusted Value $1,112,899

Adjusted -$255,566 for 547 sqft less living space. Net adjustment: -$255,566.

15304 SUNNINGDALE ST, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
4 bed 3 bath 2,621 sqft Built 2004
Raw Value $1,282,234
Adjusted Value $1,235,045

Adjusted -$47,189 for 101 sqft less living space. Net adjustment: -$47,189.

15212 SUNNINGDALE ST, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
5 bed 4 bath 3,160 sqft Built 2003
Raw Value $1,461,503
Adjusted Value $1,162,486

Adjusted -$299,017 for 640 sqft less living space. Net adjustment: -$299,017.

15301 SUNNINGDALE ST, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,218 sqft Built 2003
Raw Value $1,120,495
Adjusted Value $1,261,594

Adjusted +$141,099 for 302 sqft more living space. Net adjustment: +$141,099.

15308 SUNNINGDALE ST, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
5 bed 4 bath 3,064 sqft Built 2002
Raw Value $1,459,459
Adjusted Value $1,205,294

Adjusted -$254,165 for 544 sqft less living space. Net adjustment: -$254,165.

The Neighborhood

This home is valued 10.2% 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

typical
146 Properties
$1,122,350 Median Value
+11.4% YoY Change
1% Have Pool
100% Have Garage
This Home
$1,237,321
Median
$1,122,350

This home is +10.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $26,542 across all districts. With a homestead exemption claimed, that drops to $23,495 — saving $3,047 per year. That's $1,958 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%$13,448
AustinCity0.5240%$6,484
Williamson CountyCounty0.3694%$4,571
Austin Community Collegespecial0.1034%$1,279
Williamson County FM/RdCounty0.0443%$548
Upper Brushy Creek WCIDWater0.0170%$210
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.1451%$26,542

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,205,294 would pay approximately $7,523 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