Permit Record

Alteration Residential

6140 N Nassau Ave, Chicago, IL

ClassificationPERMIT - RENOVATION/ALTERATIONResidential Alteration
Reliable value$55,000
ContractorAffordable Construction & Elec →
Permit record
Parties
Contractor
Affordable Construction & Elec
Applicant
Not in source
Owner
Matthew J. Obrien
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
1306223019
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
41.9925, -87.7919
Geocode confidence
90%
Geocode source
Not in source
Issued
Sep 5, 2025
Applied
Jul 26, 2024
Work class
Residential
Description
Source description

SPR 2019, CBRC: 2ND FLOOR ADDITION TO AN EXISTING 1 1/2 STORY BRICK & FRAME BUILDING WITH BASEMENT AS SINGLE-FAMILY RESIDENCE. INCLUDING ELECTRICAL AND MECHANICAL WORK. (NO PLUMBING WORK INVOLVED). ALL WORK TO BE DONE PER PLANS. (CONSTRUCTION CLASS IIIA, OCCUPANCY R-5).

Status
Current status
issued
Source status
ACTIVE
Provenance
First seen by PermitCore
May 2, 2026 · 13:10 UTC
Last seen
May 15, 2026 · 08:49 UTC
Last changed
May 12, 2026 · 00:34 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 1306223019) · Dec 2, 2013 – Sep 5, 2025

  1. Sep 5, 2025This permitAlteration Residential · Issued$55,000Affordable Construction & Elec
  2. Jul 23, 2014100542183Alteration Residential · Finaled$26,400T & M Electric
  3. Dec 2, 2013100519521Roofing$15,900Regency Garages, INC.

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

Other permits by Affordable Construction & Elec

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Developer details
Permit #
101056065
Canonical ID
3:101056065
Source permit ID
101056065
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