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.
On October 4, 2021 City Council adopted two by-laws to amend Zoning By-law 2009-141. These amendments affect the process for building second suites and detached accessory dwelling units in Barrie. See Zoning By-law Updates for Affordable Housing for details.
Building a Second Suite or Detached Accessory Dwelling Unit
Building permits give legal permission to begin construction, subject to other required municipal approvals. See
Building a Second Suite or
Building a Secondary Dwelling.
If the property is in a site plan control area, you may require site plan approval prior to applying for a building permit for a second suite.
Following Council approval on October 4, 2021, including the passing of an updated Site Plan Control By-law, detached accessory dwelling units in all residential zones are now subject to scoped site plan approval. More information on the scoped site plan process is coming soon.
If you are interested in applying for a detached accessory dwelling unit in the interim, please contact Shelby.White@barrie.ca.
Second Suite Registration By-law requires all second suites and detached accessory dwelling units to be registered with the City. This ensures all relevant agencies and City departments, including Barrie Fire and Emergency Service, are aware of the additional 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 or detached accessory dwelling unit that is not registered, please contact Service Barrie at 705-726-4242 or Service.Barrie@barrie.ca.
Registration of all new second suites or detached accessory dwelling units 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 a single detached dwelling, semi-detached dwelling unit, or street townhouse dwelling unit, 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. The suite may be added to an existing house, or purpose-built in a new home, provided all applicable standards can be met.
A maximum of one second suite is permitted per lot. The Zoning By-law standards for second suites in Section 5.2.9 were recently updated and include:
Please see By-law 2021-085 for full requirements.
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: Shall mean an accessory dwelling unit that is located within a detached accessory building on the same lot as a single detached dwelling, semi-detached dwelling unit, duplex dwelling or street townhouse dwelling unit, and is subordinate to the principal unit.
A detached accessory dwelling unit can only contain one residential dwelling unit.
A maximum of one detached accessory dwelling unit is permitted per lot. The Zoning By-law standards for detached accessory dwelling units (Section 5.2.9) were recently updated and 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.
The page you are attempting to view is not currently compatible
with the dimensions of your device. Please visit this page on a
There are no items to display.