Permit Record

Alteration Residential

3121 N Seminary Ave, Chicago, IL

ClassificationPERMIT - EASY PERMIT PROCESSResidential Alteration
Reliable value$500
ContractorModern Developers, INC
Permit record
Parties
Contractor
Modern Developers, INC
Applicant
Not in source
Owner
Sharon Heald
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
1429202016
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
41.9387, -87.6564
Geocode confidence
90%
Geocode source
Not in source
Issued
Sep 9, 2009
Applied
Sep 9, 2009
Work class
Residential
Description
Source description

REVISION TO PERMIT 100286510 ISSUED 5/12/09 TO ADD EXT. DOOR AND ADD A 3RD ELECT METER CONTRACTORS REMAIN THE SAME. W/PLAN. SUBJECT TO FIELD INSPECTION

Provenance
First seen by PermitCore
May 2, 2026 · 12:52 UTC
Last seen
May 15, 2026 · 08:40 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 1429202016) · May 12, 2009 – Sep 9, 2009

  1. Sep 9, 2009This permitAlteration Residential$500Modern Developers, INC
  2. May 12, 2009100286510Alteration Commercial · Finaled$95,000Modern Developers, INC

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

Other permits by Modern Developers, INC

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Developer details
Permit #
100309670
Canonical ID
3:100309670
Source permit ID
100309670
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