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CHICAGO-2026-078420

Building – Alteration · Commercial renovation · 401 N Michigan Ave, Chicago, IL · issued 2026-05-21

Permit fields

permit_idCHICAGO-2026-078420permit_typeBuilding – Alterationcohortcommercial_renovationaddress401 N Michigan Ave, Chicago, ILboroughThe LoopcontractorLakefront Construction LLCvaluation$3,400,000roof_area_sqft—ibc_occupancyMercantile (M)pluto_joinedyesissued_date2026-05-21dq_flag_count1

Data-quality interpretation

roof_missingRoof area not in source data and could not be estimated from PLUTO. Flagged, not silently zero-filled.

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