Service Barrie (705) 726-4242
Simcoe County Ontario Renovates Program
Planning & Development Maps (see Registered Second Suites)
This page includes information about additional residential units: second suites and detached accessory dwelling units (a type of second suite).
Building permits give legal permission to begin construction, subject to other required municipal approvals. See
Building a Second Suite or
Building a Secondary Dwelling.
Second Suite Registration By-law (formerly the Two-Unit House Registration By-law) requires all second suites to be registered with the City, including detached accessory dwelling units. A registered second suite advises all City departments and other agencies that there are two separate units on the property.
View all registered second suites in Barrie via Discover Barrie's Planning and Development map. If you note a second suite that is not registered please contact Service Barrie at 705-726-4242 or Service.Barrie@barrie.ca.
Registration of all new second suites is automatically included in the Building Permit or Change of use Permit Process. Related pages:
To register a second suite that meets requirements for "grandfathering" under the Residents' Rights Act, 1994 (Bill 120 and O.Reg 384/94) please submit a completed
Application to Register a Second Suite to Development Services.
To check whether a second suite was legally created and is already registered, please see the Planning & Development
registered second suites tab on Discover Barrie's Planning and Development map.
If you note a two-unit property that is not registered, please contact Development Services via Service Barrie, 705-726-4242 or
Planning Act requires municipalities to authorize the creation of additional residential units by allowing:
Comprehensive Zoning By-law allows the creation of two types of additional residential units, subject to meeting applicable zoning requirements:
second suites and
detached accessory dwelling units.
A property can contain a maximum of one second suite inside a dwelling and one detached accessory dwelling unit, provided all zoning requirements can be met. Additional residential units may be exempt from
Second Suite: An accessory dwelling unit that is within the principal structure on a property and is subordinate to the principal unit.
A second suite is a self-contained unit with a kitchen, bathroom, living area and sleeping area within the primary house on a property.
Zoning By-law standards for second suites are in Section 5.2.9 and include:
Compliance with the Ontario Building Code is required. If you are thinking of constructing a second suite in your home, please refer to
Building a Second Suite.
Second suites that meet ALL of the following requirements may be eligible for “grandfathering" under the Residents' Rights Act, 1994 (Bill 120 and O.Reg 384/94):
If you meet the above criteria, please contact Development Services (Planning) for more details at
All other existing second suites that were created without a Building Permit or a Change of Use Permit must meet the current Zoning By-law and Ontario Building Code standards.
Detached Accessory Dwelling Unit: a specific type of second suite, which is located in a detached structure on the same property as, and is subordinate to, a principal unit. The Building Department also refers to these as “Secondary Dwellings."
A detached accessory dwelling unit can only contain one residential unit.
Zoning By-law standards for detached accessory dwelling units (Section 5.2.9) include:
Compliance with the Ontario Building Code is required. If you are thinking of constructing a secondary dwelling, please refer to
Building a Secondary Dwelling.
Detached Accessory Dwelling Units that were created without a Building Permit or a Change of Use Permit must meet today's Zoning By-law and Ontario Building Code standards. Please email
PlannerOfTheDay@barrie.ca with any specific questions regarding your property.
Living in a second suite or detached accessory dwelling unit can be an attractive and
affordable housing option for many residents. The
More Homes, More Choices Act, 2019 required that municipalities across Ontario amend their planning documents to facilitate the creation of additional residential units in existing homes and accessory structures. This is a form of affordable housing that is relatively simple to implement and assists the City in increasing the vacancy rate to a healthy standard while helping owners defray the cost of home ownership.
The County of Simcoe
Secondary Suites Program provides
funding of up to $30,000 per unit for the creation of an affordable secondary suite or detached accessory dwelling unit. For more details or to apply, please contact the County of Simcoe Social Housing Department.
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