Permit Record

Alteration Residential

301 W 31st St, Chicago, IL

ClassificationPERMIT - EASY PERMIT PROCESSResidential Alteration
Reliable valueNot in source
ContractorSun N INC. →
Permit record
Parties
Contractor
Sun N INC.
Applicant
Not in source
Owner
Ronggan 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
Nov 4, 2015
Applied
Nov 4, 2015
Work class
Residential
Description
Source description

PERMIT TO COLLECT AN UNCOLLECTED STOP WORK ORDER FEE.

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 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 1733201004) · May 29, 2015 – Nov 4, 2015

  1. Nov 4, 2015This permitAlteration ResidentialSun N INC.
  2. May 29, 2015100596358Alteration 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 #
100622224
Canonical ID
3:100622224
Source permit ID
100622224
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