Permit Record

Alteration Commercial

50 E Grand Ave, Chicago, IL

ClassificationPERMIT - RENOVATION/ALTERATIONCommercial Alteration
Reliable value$450,000
ContractorBlackcomb Construction Group INC →
Permit record
Parties
Contractor
Blackcomb Construction Group INC
Applicant
Not in source
Owner
Potbelly Sandwich Works, LLC
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
1710120001
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
41.8918, -87.6261
Geocode confidence
90%
Geocode source
Not in source
Issued
Mar 26, 2024
Applied
Mar 25, 2024
Work class
Commercial
Description
Source description

SELF CERT 2019 CBRC INTERIOR ALTERATIONS TO EXISTING RESTAURANT SPACE FOR NEW RESTAURANT TENANT IN EXISTING BUILDING OCCUPANCY TYPE M EXISTING TYPE 1A HIGH RISE SPRINKLED BUILDING.

Status
Current status
finaled
Source status
COMPLETE
Provenance
First seen by PermitCore
May 2, 2026 · 13:10 UTC
Last seen
May 15, 2026 · 08:48 UTC
Last changed
May 5, 2026 · 04:40 UTC

Open in Chicago source →

Data-quality checks0 of 12 flagged

0 of 12 data-quality rules flagged anything on this permit.

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
  • Valuation is placeholder
Project timeline at this parcel

3 permits at this parcel (parcel 1710120001) · Nov 5, 2010 – Mar 26, 2024

  1. Mar 26, 2024This permitAlteration Commercial · Finaled$450,000Blackcomb Construction Group INC
  2. Aug 19, 2016100663261Alteration Commercial · Finaled$250,000Langehaumer Construction, INC
  3. Nov 5, 2010100361693Alteration Commercial · Finaled$35,000W. E. O'Neil Construction CO.

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

Other permits by Blackcomb Construction Group INC

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Developer details
Permit #
101044633
Canonical ID
3:101044633
Source permit ID
101044633
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