Permit Record

MEP Mechanical HVAC

4843 N Ridgeway Ave, Chicago, IL

ClassificationHVAC / Mechanical
Reliable valueNot in source
ContractorDc Heating Cooling & Construct
Permit record
Parties
Contractor
Dc Heating Cooling & Construct
Applicant
Not in source
Owner
Sellers Advantage
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
1311326006
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
41.9696, -87.7218
Geocode confidence
90%
Geocode source
Not in source
Issued
Apr 19, 2018
Applied
Apr 19, 2018
Work class
Not in source
Description
Source description

REPLACE 1 FURNACE

Provenance
First seen by PermitCore
May 2, 2026 · 13:02 UTC
Last seen
May 15, 2026 · 08:45 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 1311326006) · Dec 4, 2017 – Apr 19, 2018

  1. Apr 19, 2018This permitMEP Mechanical HVACDc Heating Cooling & Construct
  2. Dec 4, 2017100738392Alteration Residential$7,500Walz Construction & Consulting LLC

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

Other permits by Dc Heating Cooling & Construct

Showing up to 12 most-recent permits by this contractor in the indexed window

No other permits by this contractor in the indexed window.
Developer details
Permit #
100757703
Canonical ID
3:100757703
Source permit ID
100757703
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