Permit Record

Roofing

6503 N Maplewood Ave, Chicago, IL

ClassificationRoofing
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Not in source
Owner
Larry Gnat
Architect
Not in source
Engineer
Not in source
Contractor license
Not in source
Building & lot · PLUTO
Building class
Not in source
Zoning district
Not in source
Lot area
Not in source
Year built
Not in source
Units (total)
Not in source
Units (residential)
Not in source
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
1036421036
Climate zone (IECC)
5A
Roof area (est.)
Not derivable — no building-size signal for this permit
HVAC tonnage (est.)
Not derivable — no building-size signal for this permit
Building type
Not in source
Building subtype
Not in source
Geocode & dates
Coordinates
41.9996, -87.6934
Geocode confidence
90%
Geocode source
Not in source
Issued
Sep 24, 2018
Applied
Sep 24, 2018
Work class
Not in source
Description
Source description

NEW SHINGLE ROOF; WITH REPLACEMENT OF SOME ROOF BOARD PLANKS

Provenance
First seen by PermitCore
May 2, 2026 · 13:03 UTC
Last seen
May 15, 2026 · 08:45 UTC
Last changed
May 5, 2026 · 04:40 UTC

Open in Chicago source →

Data-quality checks1 of 12 flagged

1 of 12 data-quality checks flagged on this permit. Detail below.

Valuation is placeholder
valuation_usd_is_placeholder

valuation_usd matched a known placeholder (often 0 or 1) used by the source when the real valuation wasn't reported.

Checks not flagged

  • Geocode out of bounds
  • Geocode is sentinel
  • Issued date in the future
  • Issued date parse bug
  • Issued date is placeholder
  • Commercial units is placeholder
  • Residential units out of bounds
  • Residential units is placeholder
  • Total units out of bounds
  • Total units is placeholder
  • Valuation out of bounds
Project timeline at this parcel

2 permits at this parcel (parcel 1036421036) · Oct 30, 2014 – Sep 24, 2018

  1. Sep 24, 2018This permitRoofing
  2. Oct 30, 2014100568204Fence Wall$4,706

Full permit history at this parcel · as of Jul 8, 2026.

Developer details
Permit #
100784758
Canonical ID
3:100784758
Source permit ID
100784758
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