Does the Commission on Chicago Landmarks (CCL) review apply to my project?

Commission on Chicago Landmarks (CCL) review is a separate, mandatory regulatory layer on top of CDOB permitting for any property that is individually landmarked or sits inside a Chicago Landmark District. CCL is established under Municipal Code §2-120 and operates in parallel with the National Register of Historic Places — the two designations overlap but are not identical, and Chicago Landmark status is what triggers municipal permit-review authority.

The footprint is meaningful: roughly 400 individually designated landmark buildings citywide plus 66+ landmark districts at last count, including Old Town Triangle, Pullman, Wicker Park, Astor Street, Gold Coast, Pilsen East, Black Metropolis-Bronzeville, Mid-North, Sheffield, Logan Square Boulevards, and Tree Studios. The full district list is published on the CCL site and mapped through the City of Chicago Data Portal.

Review is triggered by any visible exterior alteration: window or door replacement, roof material change, masonry repair (overlapping the Tuckpointing Ordinance), porch reconstruction, dormer addition, fence or garage changes visible from the street, paint color in some districts, signage, and any addition. Strict-replication standards apply to street-facing elevations; rear-yard alterations get more flexibility under the CCL Permit Review Committee's published guidelines.

The procedural sequence: file a Permit Review application with CCL through the CDOB e-Plan portal BEFORE the underlying building permit can issue. CCL staff conducts an initial review on minor scope (window-for-window in-kind replacement) and can issue a staff Permit Review Certificate in 2-4 weeks. Larger scope routes to the full Permit Review Committee, which meets monthly, with 4-12 additional weeks of total review time on top of CDOB's track. The Commission itself reviews demolition, new construction, and major additions.

Homeowner risk: CDOB will not issue a permit on a landmark property without the Permit Review Certificate, and post-construction enforcement under §2-120-740 includes orders to restore non-conforming work at the owner's expense. Always confirm landmark status at chicago.gov/landmarks before signing a design contract — the design solution often has to be re-engineered to meet CCL standards.