2026 COOK COUNTY PROPERTY TAX APPEAL — COMPARABLE UNIFORMITY & VALUATION EVIDENCE PACKET
5142 W WARWICK AVE, CHICAGO, IL 60641
Subject PIN: 13-21-216-024-0000 ·
Jefferson Township ·
Assessor Neighborhood Code: 71150 ·
Class 203
Section 1 — Executive Assessment & Tax Reduction Summary
Current Total Assessed Value $32,001 Bldg: $19,971 | Land: $12,030
Subject Building AV / Sq Ft $17.70 / sq ft 1,128 sq ft living area
Comparable Median Bldg AV / Sq Ft $12.70 / sq ft Based on 5 same-neighborhood Class 2-03 comps
Requested Uniform Total AV $26,356 Reduction of -$5,645 AV (-17.64%)
Estimated Annual Tax Savings $1,146 / yr At Eq. Factor 3.0355 & 6.69% local tax rate
Section 2 — Lack of Uniformity Comparable Property Grid (Assessor Nbhd 71150)
Under Article IX, Section 4 of the Illinois Constitution, real estate assessments must be
uniform within the same class and taxing jurisdiction. Below are 5 comparable
Class 2-03 properties in Assessor Neighborhood 71150 assessed at a lower Building Assessed Value per square foot than the Subject Property:
| Parcel Role | 14-Digit PIN | Address | Class | Yr Built | Bldg Sq Ft | Lot Sq Ft | Beds / Baths | Ext / Bsmt / Gar | Land AV | Bldg AV | Total AV | Bldg $/Sq Ft |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SUBJECT | 13-21-216-024-0000 | 5142 W WARWICK AVE | 2-03 | 1921 | 1,128 | 3,437 | 3 / 1.0 | Masonry / Full / 2 cars | $12,030 | $19,971 | $32,001 | $17.70 |
| Comp #1 (Same Block (216)) | 13-21-216-002-0000 | 5153 W GRACE ST | 2-03 | 1914 | 1,188 | 3,750 | 3 / 1.0 | Frame / Slab / 1 cars | $13,125 | $13,875 | $27,000 | $11.68 |
| Comp #2 (Same Block (216)) | 13-21-216-003-0000 | 5151 W GRACE ST | 2-03 | 1914 | 1,114 | 3,750 | 3 / 1.0 | Frame / Slab / 1 cars | $13,125 | $13,875 | $27,000 | $12.46 |
| Comp #3 (Same Block (216)) | 13-21-216-019-0000 | 5154 W WARWICK AVE | 2-03 | 1916 | 1,250 | 3,750 | 2 / 1.1 | Masonry / Full / 1.5 cars | $13,125 | $15,875 | $29,000 | $12.70 |
| Comp #4 (Same Block (216)) | 13-21-216-026-0000 | 5132 W WARWICK AVE | 2-03 | 1919 | 1,416 | 6,250 | 4 / 1.1 | Frame / Full / 2 cars | $18,000 | $18,000 | $36,000 | $12.71 |
| Comp #5 (Same Block (216)) | 13-21-216-008-0000 | 5135 W GRACE ST | 2-03 | 1914 | 1,089 | 5,625 | 2 / 1.0 | Frame / Full / 1 cars | $15,998 | $15,003 | $31,001 | $13.78 |
Copy-and-Paste Comparable PINs for Online Portal Entry:
13212160020000, 13212160030000, 13212160190000, 13212160260000, 13212160080000
Formatted with dashes: 13-21-216-002-0000 | 13-21-216-003-0000 | 13-21-216-019-0000 | 13-21-216-026-0000 | 13-21-216-008-0000
Section 3 — Written Appeal Brief (Ready to Paste or Attach as PDF)
TO THE COOK COUNTY ASSESSOR — 2026 RESIDENTIAL UNIFORMITY APPEAL BRIEF Subject Property: 5142 W WARWICK AVE, CHICAGO, IL 60641 Permanent Index Number (PIN): 13-21-216-024-0000 Township: Jefferson Township (Code 71) | Assessor Neighborhood Code: 71150 | Property Class: 2-03 1. BASIS OF APPEAL: LACK OF UNIFORMITY (ILLINOIS CONSTITUTION ART. IX, SEC. 4) The Subject Property is a Class 2-03 residential parcel (built 1921, Masonry construction) containing 1,128 square feet of building area on a 3,437 square foot lot in Jefferson Township, Assessor Neighborhood 71150. Its improvement (building) is currently assessed at $19,971, or $17.70 per square foot of building area ($32,001 Total Assessed Value). 2. COMPARABLE UNIFORMITY EVIDENCE IN ASSESSOR NEIGHBORHOOD 71150 A review of comparable Class 2-03 residential properties in the identical Assessor Neighborhood (71150) demonstrates that the Subject Property is assessed substantially above similar neighboring homes: • PIN 13-21-216-002-0000 (5153 W GRACE ST): Class 2-03, 1,188 sq ft (Frame, Slab bsmt) — Building AV $13,875 ($11.68 / sq ft) • PIN 13-21-216-003-0000 (5151 W GRACE ST): Class 2-03, 1,114 sq ft (Frame, Slab bsmt) — Building AV $13,875 ($12.46 / sq ft) • PIN 13-21-216-019-0000 (5154 W WARWICK AVE): Class 2-03, 1,250 sq ft (Masonry, Full bsmt) — Building AV $15,875 ($12.70 / sq ft) • PIN 13-21-216-026-0000 (5132 W WARWICK AVE): Class 2-03, 1,416 sq ft (Frame, Full bsmt) — Building AV $18,000 ($12.71 / sq ft) • PIN 13-21-216-008-0000 (5135 W GRACE ST): Class 2-03, 1,089 sq ft (Frame, Full bsmt) — Building AV $15,003 ($13.78 / sq ft) 3. REQUESTED RELIEF The median building assessment of the comparable Class 2-03 properties above is $12.70 per square foot. Applying $12.70 per square foot to the Subject Property's 1,128 square feet yields a uniform Building Assessed Value of $14,326. Added to the uncontested Land Assessed Value of $12,030, the Petitioner respectfully requests that the Total Assessed Value be reduced from $32,001 to $26,356 (an assessment reduction of $5,645, or 17.6%).
Section 4 — 10-Minute Step-by-Step Self-Guided (Pro Se) Filing Instructions
- Open the Official County Portal: For Assessor filings, visit
cookcountyassessoril.gov/online-appeals. For Board of Review filings, visitappeals.cookcountyboardofreview.com. Filing is 100% free. - Select "Homeowner / Pro Se" & Enter Subject PIN: Enter your 14-digit PIN (
13-21-216-024-0000) and select Lack of Uniformity (and Overvaluation if applicable) as the reason for appeal. - Enter the 5 Comparable PINs from Section 2: Paste the comparable 14-digit PINs listed in Section 2 into the Comparable Properties step.
- Upload This PDF Evidence Packet & Paste Narrative Brief: Click "Print / Save as PDF" at the top of this page to save this packet as a PDF, attach it under Supporting Documentation, and paste the Section 3 Written Appeal Brief into the comments/notes box.
Order Verified PDF Appeal Evidence Packet for 5142 W WARWICK AVE
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