Accessory Dwelling Units

Accessory Dwelling Units are two seperate living units with one house.  Whether it be a basement apartment, in-law suite, second suite or otherwise, these units are required to be registered with the Town of Newmarket.

Does your property contain more than one dwelling unit or basement apartment? If so, please be advised that the Town of Newmarket has recently appointed an Accessory Dwelling Unit (ADU) Enforcement Officer to conduct onsite visits to registered and non-registered ADUs in Newmarket. These visits are being conducted in the interest of public safety and to ensure the units meet the requirements of registration.

For more information on registering your ADU, click here or call 905-895-5193.

To locate an existing registered ADU please click the link below.

(ADU) Accessory Dwelling Unit Information Online