Duluth, MN Zoning Overlays & Bonuses: Downtown Design Guide (2026)

The Unified Development Chapter (Chapter 50) treats Downtown Duluth as two Form Districts rather than a conventional zone. F-7, Downtown Shopping, covers specific parcels along Superior Street and was created to preserve the historic mixed-use core of Downtown; it permits only the Main Street Building III type, the form the city says codifies the existing urban structure of the heart of Downtown. That type requires a storefront on the ground floor and placement adjacent to the sidewalk, so surface parking lots, blank walls and suburban setbacks at street level are not an option there.

F-7 and F-8 also carry the tallest by-right height allowance anywhere in the Unified Development Chapter: up to 15 stories along Superior Street. F-8, Downtown Mix, covers the rest of Downtown outside that Superior Street corridor and adds the Corridor Building III type alongside Main Street Building III, giving office and residential projects more flexibility in building form while keeping the same street-facing design discipline. 8, and Section 50-22 carries the illustrated building-type diagrams staff use to review plans. Any project in F-7 or F-8 is evaluated against these form standards, not a generic setback/height table, before Planning and Economic Development or Construction Services and Inspections will issue a building permit.