Permit Record

Roofing

4428 W Montrose Ave, Chicago, IL

ClassificationRoofing
Reliable valueNot in source
ContractorPatrick Mechanical
Permit record
Parties
Contractor
Patrick Mechanical
Applicant
Not in source
Owner
Not in source
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
1315131024
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
41.9609, -87.7397
Geocode confidence
90%
Geocode source
Not in source
Issued
Oct 18, 2017
Applied
Oct 18, 2017
Work class
Not in source
Description
Source description

REPLACE ONE ROOFTOP UNIT WITH ONE 12.5 TON, AIR COOLED, SELF-CONTAINED, R410A, RHEEM ROOFTOP UNIT, SERVING A BAR.

Provenance
First seen by PermitCore
May 2, 2026 · 13:02 UTC
Last seen
May 15, 2026 · 08:44 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

3 permits at this parcel (parcel 1315131024) · Jun 1, 2016 – Oct 18, 2017

  1. Oct 18, 2017This permitRoofingPatrick Mechanical
  2. Oct 18, 2017100731645RoofingPatrick Mechanical
  3. Jun 1, 2016100652958Alteration Residential$8,000

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

Other permits by Patrick Mechanical

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 #
100731650
Canonical ID
3:100731650
Source permit ID
100731650
Browse Chicago permits in the Market Explorer →Pull this permit via /v1/permits →