Chicago multiple dwelling 2026

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The document is a registration form from the City of Chicago's Department of Buildings, requiring property owners of multiple dwellings (four or more family units or ten or more sleeping accommodations) to register annually. It outlines the necessary information to be provided, including building address, ownership details, and payment instructions for a $10 fee.

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Click ‘Get Form’ to open the Chicago Multiple Dwelling Registration form in the editor.
Begin by entering the correct address of the building, including the address range (e.g., 121-31 N. LaSalle). This ensures accurate identification of your property.
Next, input the Permanent Real Estate Index Number, which can be found on your real estate tax bill. This number is crucial for property identification.
Indicate the number of family units or sleeping accommodations within the building. This information is essential for compliance with city regulations.
List all owners, agents, or mortgage holders associated with the property. If applicable, include details about any land trust beneficiaries.
Complete sections for new managing agents and buyers, ensuring all addresses and contact information are accurate.
Finally, sign and date the form to verify that all provided information is correct before submission.

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What constitutes a multiple dwelling?

Per the California Residential Code (CRC), section R320. 1; Dwelling units in a building consisting of three or more dwelling units or four or more condominium units shall meet the requirements of the California Building Code (CBC) Chapter 11A (Housing Accessibility).

What is a multi-dwelling property?

Multifamily residential (also known as multi-dwelling unit or MDU) is a housing classification where multiple separate housing units for residential inhabitants are contained within one building or several buildings within one complex.

What is an example of a multi-dwelling unit?

Multifamily rental properties, also known as multi-dwelling units or MDUs are multiple yet separate housing units in a single building or several buildings. An apartment building is one example, while other common examples include duplexes, triplexes, quadplexes, and mixed-use properties.

How much does an ADU cost in Chicago?

In Chicago, the estimated cost to construct one of the units is about $150,000, which is about half the cost of building or buying a single-family house in the city. They can reduce housing costs, with average construction for a unit costing 30% as much as a new house.

What is the additional dwelling unit ordinance in Chicago?

The ADU ordinance allows for the creation of new units for homeowners needing extra income, or those who wish to create separate spaces for multi-generational families. It also provides a path for legalization of units that were previously built without zoning approval and building permits.

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What is a multiple unit dwelling for tax purposes?

A multifamily home is any residential property containing more than one housing unit. A duplex, semi-detached house, townhome or apartment complex can all be good examples of a multifamily dwelling.

Are ADUs allowed in Chicago?

The City of Chicago allows ADUs in attics, basements, and accessory buildings such as coach houses or in-law suites, primarily within designated pilot areas.

Chicago multiple dwelling 2026

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