Newmarket Second Suites

Accessory Dwelling Units

In 2013, The Town of Newmarket passed an amended By-law 2013-13 which requires all residences with Accessory Dwelling Units (ADUs) to register their units through a one-time application process.

What is an Accessory Dwelling Unit  (ADU)?

ADUs are two separate living units within one house. ADUs can be basement apartments, in-law suites, second suites or otherwise. ADUs are required to be registered with the Town of Newmarket’s Legislative Services Department.

Each ADU unit must have:

  • a private entrance
  • a kitchen
  • living quarters
  • sleeping facilities
  • bathroom facilities
  • If you rent a room in a house or a flat with a shared entrance, kitchen and/ or bathroom facilities, the ADU By- law does not apply to you.

For more information on ADU’s

ADU Application & Bylaw

Accessory Dwelling Unit FAQ

How to Register Your ADU

Registered ADU Unit List