Second Units Policy

Second Dwelling Units, sometimes referred to as accessory apartments, are now permitted in detached, semi-detached, townhouse dwellings or accessory buildings, subject to zoning requirements and restrictions.

The By-law details are as follows:

Belleville Zoning By-Law 2018-185

Thurlow Zoning By-Law 2018-186

Sidney Zoning By-Law 2018-187

Staff Report – PP-2018-44

Information On How To Build A Second Unit

Legal second units can provide important community benefits such as safe and affordable rental housing. Second units also provide economic benefits to homeowners and they support the flexible housing needs of youth, young families and seniors.

To assist you with information on building a second unit, the Belleville Building Division has developed a Second Dwelling Unit, Building Code Guide as a starting point.

Registry of Second Unit Dwellings

Registration for second units began in November, 2018. New second units will be registered with new building permits, while existing owners of second units are encouraged to apply for building permits in order to register their second units.

Only those units that have been registered with the City are considered legal second unit dwellings

Registered Second Dwelling Units

Building Permit

Building Permit fees and additional information can be found here.

Filing a Complaint

To file a complaint regarding a possible by-law contravention, please contact By-law Services by email or complete the online complaint form below.

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