Issued / ready
#B200509272 · 525 W Monroe StNot supplied
Source status: Active
Work description & named contractors
View work details in the official source
SIEMENS INDUSTRY INC · Private Alarm Contractor
GRAND-KAHN, LLC · Electrical Contractor
Contractor name / Source history
Grand-Kahn, Llc
Filings naming this contractor, across the public source's longer history.
Older filings have not been checked yet.
Recent collected filings appear below. Load the source history to research earlier activity.
Sign in to load older filings →
Free account · five lookups per hour
Recent collected filings10
Earliest in these recordsAug 7, 2026
Latest in these recordsOct 27, 2026
This query uses the listed source name, ignoring letter case. Aliases and namesakes are not resolved, and this is not a company's verified complete work history. Dates mean issued / ready to issue. They do not establish construction start, completion, available bids, or work quality. Reported estimates are not added.
Filings by source date
Issued / ready
#101086447 · 222 S Riverside Plz$1,050,000
Source status: Active
Work description & named contractors
HVAC · Electrical · Plumbing
GRAND-KAHN, LLC · Contractor-Electrical
LEOPARDO CONSTRUCTION INC · Contractor-General Contractor
GREAT LAKES PLUMBING & HEATING · Contractor-Plumber/Plumbing
WESTSIDE MECHANCIAL DESIGN/BUI · Contractor-Refrigeration
WESTSIDE MECHANCIAL DESIGN/BUI · Contractor-Ventilation
Issued / ready
#101087241 · 1331 W Albion Ave$135,000
Source status: Active
Work description & named contractors
Interior work
GRAND-KAHN, LLC · Contractor-Electrical
REED CONSTRUCTION LLC · Contractor-General Contractor
Issued / ready
#101085725 · 322 E Illinois St$400,000
Source status: Active
Work description & named contractors
Interior work
GRAND-KAHN, LLC · Contractor-Electrical
LEOPARDO CONSTRUCTION INC · Contractor-General Contractor
Issued / ready
#101087262 · 333 W Wacker Dr$1,313,800
Source status: Active
Work description & named contractors
Interior work
GRAND-KAHN, LLC · Contractor-Electrical
LEOPARDO CONSTRUCTION INC · Contractor-General Contractor
JOHNS PLUMBING, INC. · Contractor-Plumber/Plumbing
AIR COMFORT, LLC · Contractor-Ventilation
Issued / ready
#101081470 · 322 E Illinois St$740,000
Source status: Active
Work description & named contractors
Interior work
GRAND-KAHN, LLC · Contractor-Electrical
LEOPARDO CONSTRUCTION INC · Contractor-General Contractor
TERRY PLUMBING A MATRIX HOLDIN · Contractor-Plumber/Plumbing
EXCEL MECHANICAL SERVICES, LLC · Contractor-Ventilation
Issued / ready
#101087422 · 1 E Wacker Dr$750,000
Source status: Active
Work description & named contractors
Interior work · Plumbing
GRAND-KAHN, LLC · Contractor-Electrical
OSLO BUILDERS LLC · Contractor-General Contractor
WARREN THOMAS PLUMBING · Contractor-Plumber/Plumbing
SHERMAN MECHANICAL INC · Contractor-Refrigeration
SHERMAN MECHANICAL INC · Contractor-Ventilation
Issued / ready
#101086927 · 123 N Wacker Dr$68,460
Source status: Active
Work description & named contractors
Interior work · Demolition
GRAND-KAHN, LLC · Contractor-Electrical
LEOPARDO CONSTRUCTION INC · Contractor-General Contractor
HOGAN PLUMBING, INC. · Contractor-Plumber/Plumbing
AIR COMFORT, LLC · Contractor-Ventilation
Issued / ready
#101085373 · 123 N Wacker Dr$97,000
Source status: Active
Work description & named contractors
Interior work
GRAND-KAHN, LLC · Contractor-Electrical
LEOPARDO CONSTRUCTION INC · Contractor-General Contractor
HOGAN PLUMBING, INC. · Contractor-Plumber/Plumbing
AIR COMFORT, LLC · Contractor-Ventilation
Issued / ready
#101086758 · 525 W Monroe St$250,000
Source status: Active
Work description & named contractors
Interior work · Demolition · HVAC · Electrical · Plumbing
GRAND-KAHN, LLC · Contractor-Electrical
REED CONSTRUCTION LLC · Contractor-General Contractor
EWING-DOHERTY MECHANICAL, INC · Contractor-Plumber/Plumbing
CT MECHANICAL LLC · Contractor-Ventilation
1–10 of 10
Page 1 of 1
Planning rows link to the City Clerk, ADU or Plan Commission source; their checked scope is shown on Planning. Application rows link to the public status portal and retain its separate date meanings. Permit source: City of Chicago Building Permits ↗. Queries cover available source filings from January 1, 2006, with up to 5,000 newest records. Voided/revoked permits are excluded by the source. Historical lookups stay separate from daily alerts and do not expand citywide coverage.