Permit Record

Alteration Commercial

717 N Michigan Ave, Chicago, IL

ClassificationPERMIT - RENOVATION/ALTERATIONCommercial Alteration
Reliable value$408,000
ContractorTw Chicago, LLC →
Permit record
Parties
Contractor
Tw Chicago, LLC
Applicant
Not in source
Owner
717 N Michigan Ave Owner 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
1710105007
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
41.8956, -87.6241
Geocode confidence
90%
Geocode source
Not in source
Issued
Apr 19, 2023
Applied
Apr 19, 2023
Work class
Commercial
Description
Source description

SELF-CERT 2019 CBRC: ALTERATIONS TO COMMON AREAS IN 4 STORY MERCENTILE BUILDING. RE-DEMISING OF GROUND FLOOR TENANT SPACE AND THE FAÇADE (ONLY ONE PORTION OF THE FAÇADE). NEW ROOFTOP UNIT BEING INSTALLED THAT REQUIRES A NEW SHAFT (OCCUPANCY GROUP M; TYPE IIA CONSTRUCTION)

Status
Current status
finaled
Source status
COMPLETE
Provenance
First seen by PermitCore
May 2, 2026 · 13:09 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

2 permits at this parcel (parcel 1710105007) · Aug 9, 2010 – Apr 19, 2023

  1. Apr 19, 2023This permitAlteration Commercial · Finaled$408,000Tw Chicago, LLC
  2. Aug 9, 2010100357635RoofingHill Mechanical Group

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

Other permits by Tw Chicago, LLC

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Developer details
Permit #
101007549
Canonical ID
3:101007549
Source permit ID
101007549
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