S Kostner Ave, Alsip, IL Property Records

Cook County property records for 19 addresses on S Kostner Ave, Alsip, IL · Last verified June 2026

S Kostner Ave Highlights

Properties 33
Median Sale Price $130,000
Deeds and Mortgages on File 24
Median Price per Sqft $117
Owner Occupied 58%
Median Annual Tax Bill $2,027
Median Year Built 1973
Median Ownership Tenure 7 years

Properties on S Kostner Ave

Owner names and prior sale amounts shown locked below are available instantly with a free trial.

Last Sale Tax Bill Prior Sale Owner Records
1 Name on Record AssessorUpdated Jun 2026

4380 S Kostner Ave

93,049 sqft · Built 1996 · 8.83 acres

Last Sale Tax Bill Prior Sale Owner Records
$4,000,000Oct 2021 $200,8072023 —Jul 2017 1 Name on Record Assessor + 4 DocumentsUpdated Jun 2026

12341 S Kostner Ave

56 bd · 28,176 sqft · 1.43 acres

Last Sale Tax Bill Prior Sale Owner Records
$59,6362023 1 Name on Record AssessorUpdated Jun 2026

12343 S Kostner Ave

Built 1972 · 0.523 acres

Last Sale Tax Bill Prior Sale Owner Records
$11,9542023 1 Name on Record AssessorUpdated Jun 2026

12345 S Kostner Ave

0.991 acres

Last Sale Tax Bill Prior Sale Owner Records
—Owner Occupied AssessorUpdated Apr 2024

12347 S Kostner Ave

0.422 acres

Last Sale Tax Bill Prior Sale Owner Records
$3052023 1 Name on Record AssessorUpdated Jun 2026

12349 S Kostner Ave

1.43 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,0362023 1 Name on Record AssessorUpdated Jun 2026
Last Sale Tax Bill Prior Sale Owner Records
$1,8742023 1 Name on Record AssessorUpdated Jun 2026

12501 S Kostner Ave

3 bd · 1.5 ba · 1,284 sqft · 0.185 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$70,000Jun 1981 $7,1852023 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

12505 S Kostner Ave

3 bd · 1 ba · 1,040 sqft · 0.208 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,1972023 —Nov 2021 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

12521 S Kostner Ave

20.2 acres

Last Sale Tax Bill Prior Sale Owner Records
—Owner Occupied AssessorUpdated Apr 2024

12525 S Kostner Ave

3 bd · 1 ba · 952 sqft · 0.172 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$145,000Feb 2017 $6,1912023 Amount on Record May 2007 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

12633 S Kostner Ave

1.73 acres

Last Sale Tax Bill Prior Sale Owner Records
—Owner Occupied AssessorUpdated Apr 2024

12635 S Kostner Ave

6 units · Built 1973 · 700 sq ft

Last Sale Median Tax Bill Median Sale    
$117,500Mar 2025 $1,9522023 $98,0006 units    

12639 S Kostner Ave

5 units · Built 1973 · 907 sq ft

Last Sale Median Tax Bill Median Sale    
$160,000Apr 2026 $2,0272023 $74,5005 units    

12639 S Kostner Ave

2 bd · 1 ba · 1,100 sqft · 0.658 acres

Last Sale Tax Bill Prior Sale Owner Records
$121,500May 2022 $2,9762023 Amount on Record Aug 2020 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

12643 S Kostner Ave

6 units · Built 1973 · 741 sq ft

Last Sale Median Tax Bill Median Sale    
$145,000Apr 2026 $1,8782023 $106,0006 units    

12800 S Kostner Ave

0.395 acres

Last Sale Tax Bill Prior Sale Owner Records
—Owner Occupied AssessorUpdated Apr 2024

13101 S Kostner Ave

2.86 acres

Last Sale Tax Bill Prior Sale Owner Records
—Dec 2001 $23,6182023 1 Name on Record AssessorUpdated Jun 2026

Wildfire Risk on S Kostner Ave

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire Risk to HomesLow
this street's cells rank at the 3rd percentile of exposed land nationally · 18th in Illinois
Wildfire LikelihoodLow — less than 1 in 10,000 per year
ExposureDirect
3 of 15 cells directly exposed · 6 adjoin burnable vegetation

Property Records in Nearby Streets