Chicago Historic Preservation: Historic-Cultural Monuments Rules (2026)

MCC 2-120-620 lists seven criteria for landmark designation including critical architectural value, important person association, significant historical event, and unique location. The Commission on Chicago Landmarks evaluates nominations from owners, aldermen, or staff and forwards recommendations to City Council for final ordinance approval. Once designated, properties cannot be altered visibly from any public right-of-way without Permit Review Committee approval under MCC 2-120-740. Designated landmarks become eligible for the Class L property tax incentive that freezes assessed value for twelve years upon completion of rehabilitation worth at least half the building's value. Demolition is generally prohibited except in cases of economic hardship.