Permit Record

Alteration Commercial

301 W 31st St, Chicago, IL

ClassificationPERMIT - RENOVATION/ALTERATIONCommercial Alteration
Reliable value$3,000
ContractorSun N INC. →
Permit record
Parties
Contractor
Sun N INC.
Applicant
Not in source
Owner
Rongcan Mei
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
1733201004
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
41.8381, -87.6342
Geocode confidence
90%
Geocode source
Not in source
Issued
May 29, 2015
Applied
May 29, 2015
Work class
Commercial
Description
Source description

INSTALL A NEW ALUMINUM STOREFRONT DOOR IN EXISTING WINDOW OPENING AS PER PLAN

Status
Current status
finaled
Source status
COMPLETE
Provenance
First seen by PermitCore
May 2, 2026 · 12:59 UTC
Last seen
May 15, 2026 · 08:43 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 1733201004) · May 29, 2015 – Nov 4, 2015

  1. Nov 4, 2015100622224Alteration ResidentialSun N INC.
  2. May 29, 2015This permitAlteration Commercial · Finaled$3,000Sun N INC.

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

Other permits by Sun N INC.

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Developer details
Permit #
100596358
Canonical ID
3:100596358
Source permit ID
100596358
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