Roofing
1937 W Walnut St, Chicago, IL
ClassificationRoofing
Reliable valueNot in source
ContractorDeljo Heating & Cooling
Permit record
Parties
- Contractor
- Deljo Heating & Cooling
- 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
- 1707412008
- 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
- 41.8858, -87.6758
- Geocode confidence
- 90%
- Geocode source
- Not in source
- Issued
- Dec 22, 2022
- Applied
- Dec 22, 2022
- Work class
- Not in source
Description
Source description
REPLACE ONE CONDENSING UNIT WITH ONE, 1.5 TON, AIR COOLED, REMOTE, R410A, CARRIER CONDENING UNIT, LOCATED ON THE ROOF, AND SERVING THE SERVER ROOM.
Provenance
- First seen by PermitCore
- May 2, 2026 · 13:09 UTC
- Last seen
- May 15, 2026 · 08:48 UTC
- Last changed
- May 5, 2026 · 04:40 UTC
Data-quality checks1 of 12 flagged
1 of 12 data-quality checks flagged on this permit. Detail below.
- Valuation is placeholder
valuation_usd_is_placeholdervaluation_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
- Dec 22, 2022This permitRoofingDeljo Heating & Cooling
- Dec 2, 2022100998217MEP PlumbingNorman Mechanical
- Jul 10, 2017100712141DemolitionMidwest Wrecking
- Jun 15, 2017100684094Alteration Commercial · Finaled$1,000,000The Heartland Construction Group INC
Full permit history at this parcel · as of Jul 8, 2026.
Other permits by Deljo Heating & Cooling
Developer details
- Permit #
- 101000511
- Canonical ID
- 3:101000511
- Source permit ID
- 101000511