Permit Record

MEP Mechanical HVAC

300 W Ontario St, Chicago, IL

ClassificationHVAC / Mechanical
Reliable valueNot in source
ContractorO'Neill Development Group INC →
Permit record
Parties
Contractor
O'Neill Development Group INC
Applicant
Not in source
Owner
Adam Dickler
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
1709222020
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
41.8933, -87.6357
Geocode confidence
90%
Geocode source
Not in source
Issued
Mar 6, 2019
Applied
Mar 6, 2019
Work class
Not in source
Description
Source description

REVISION TO PERMIT #100799346 CHANGE HVAC TO OASIS HEATING & COOLING.

Provenance
First seen by PermitCore
May 2, 2026 · 13:04 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

5 permits at this parcel (parcel 1709222020) · Aug 1, 2014 – Mar 6, 2019

  1. Mar 6, 2019This permitMEP Mechanical HVACO'Neill Development Group INC
  2. Mar 30, 2018100754639Alteration Residential$2,385R&r Glass And Windows INC
  3. Feb 7, 2018100746522Addition Residential$228,516Allied Waterproofing, INC.
  4. Nov 10, 2015100623245Alteration Residential$199,595
  5. Aug 1, 2014100553527Alteration Residential$39,975

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

Other permits by O'Neill Development Group INC

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Developer details
Permit #
100807640
Canonical ID
3:100807640
Source permit ID
100807640
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