Permit Record

Alteration Commercial

4129 W 21st St, Chicago, IL

ClassificationPERMIT - RENOVATION/ALTERATIONCommercial Alteration
Reliable value$150,000
ContractorNew Frontier Electrical Constr →
Permit record
Parties
Contractor
New Frontier Electrical Constr
Applicant
Not in source
Owner
Mario Quito
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
1622423011
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
41.8533, -87.7284
Geocode confidence
90%
Geocode source
Not in source
Issued
Aug 6, 2026
Applied
Mar 31, 2026
Work class
Commercial
Description
Source description

SELF-CERT 2019-CBRC: INTERIOR REMODELING OF TWO EXISTING RESIDENTIAL DWELLING UNITS IN AN EXISTING 2-STORY BRICK BUILDING. WORK INCLUDES DUPLEXING THE FIRST-FLOOR UNIT WITH THE BASEMENT, NEW INTERIOR PARTITION WALLS, FINISHES, AND MODIFICATIONS TO HVAC, PLUMBING, AND ELECTRICAL SYSTEMS (OCCUPANCY GROUP R-5; TYPE IIIB CONSTRUCTION).

Status
Current status
issued
Source status
ACTIVE
Provenance
First seen (no changes since)
Aug 8, 2026 · 09:44 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

1 permit at this parcel (parcel 1622423011) · Aug 6, 2026 – Aug 6, 2026

  1. Aug 6, 2026This permitAlteration Commercial · Issued$150,000New Frontier Electrical Constr

Full permit history at this parcel · as of Aug 9, 2026.

Other permits by New Frontier Electrical Constr

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Developer details
Permit #
101081161
Canonical ID
3:101081161
Source permit ID
101081161
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