Zoning Guide

Duluth Zoning & Land Use Guide

Sources checked· 2026-10-04
Last updated: Verified:

Key Zoning Facts

Local Zoning / Building Office
City of Duluth Community Development Department(218) 730-5580
Building Code Edition
Minnesota State Building Code (based on 2018 IBC)
ADU / Accessory Apartment
Yes

Regulatory Layers That Apply in Duluth

Your property is subject to ALL of these regulatory layers. Each one can impose additional requirements beyond the others.

Federal

State — Minnesota

  • Building Code: Minnesota State Building Code (based on 2018 IBC)
View Minnesota zoning overview

County — St. Louis County

    City / Municipal

    The municipality's zoning ordinance, building-code enforcement, and local permits form the primary local layer of land-use regulation for your property.

    Overlay Districts

    No overlay districts identified.

    Private Restrictions

    • Private covenants, deed restrictions, condominium rules, or association rules can impose requirements beyond zoning.
    • Check HOA CC&Rs for additional restrictions.

    ADU Rules in Duluth

    ADUs:Allowed
    Max Size
    800 sq ft maximum and no larger than the principal structure's total floor area
    Max Height
    No higher than the principal residential structure or 20 ft, whichever is greater
    Owner Occupancy
    No owner-occupancy requirement identified in the current City ADU guidance reviewed
    Full ADU rules for Duluth →

    Permit Costs & Timelines

    Check Current Permit Fees & Timelines

    Permit fees and review times can vary by project type, scope, valuation, and required approvals. Check the current schedule with the local permitting authority before filing.

    Check current Duluth permit information →

    Official Sources

    City-specific

    City of Duluth — Tiny Houses and Accessory Dwelling Unitsduluthmn.govOfficial sourceCity of Duluth Planning & Developmentduluthmn.govOfficial sourceDuluth Unified Development Chapterlibrary.municode.comOfficial source