Permit Record

Alteration Residential

843 N Winchester Ave, Chicago, IL

ClassificationPERMIT - RENOVATION/ALTERATIONResidential Alteration
Reliable value$9,000
ContractorMr. Porch, Incorporated →
Permit record
Parties
Contractor
Mr. Porch, Incorporated
Applicant
Not in source
Owner
G Prop I 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
1706434007
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
41.8972, -87.6757
Geocode confidence
90%
Geocode source
Not in source
Issued
Aug 17, 2015
Applied
Aug 17, 2015
Work class
Residential
Description
Source description

REMOVE AND REPLACE EXISTING REAR WOOD PORCH AND STAIRS 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 12, 2026 · 00:30 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 1706434007) · Feb 4, 2015 – Aug 17, 2015

  1. Aug 17, 2015This permitAlteration Residential · Finaled$9,000Mr. Porch, Incorporated
  2. Mar 3, 2015100583697Alteration Residential$7,500Sovereign Construction CO LLC
  3. Feb 4, 2015100579577MEP Plumbing$10,000Karow Mechanical, INC.

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

Other permits by Mr. Porch, Incorporated

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Developer details
Permit #
100607144
Canonical ID
3:100607144
Source permit ID
100607144
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