Zoning By-law 5050 as Amended
New Requirements for Designer Qualifications for House Projects
EFFECTIVE JULY 1, 2005 UNDER THE ONTARIO BUILDING CODE
Recent changes to the Ontario Building Code will now require, as of July 1st, 2005, that the designers of certain construction projects must be pre-qualified in their knowledge of the Building Code by writing and passing technical exams.
The qualifications will depend in part on the scope of the design activity being performed by the designer. Some projects may require several qualified designers to be involved, each one qualified in their limited scope of expertise (i.e. plumbing versus fire safety).
This bulletin focuses on the designer requirements for house(1) projects. For other project types, please see Section 2.17 of the Building Code. The requirements for qualifications will vary based on whether it is the property owner or someone else who is taking responsibility for the design, and based on the nature of the project.
Where the designer must be qualified, or must be a registered designer, please visit the web site of the Ministry of Municipal Affairs and Housing (http://www.obc.mah.gov.on.ca) to obtain more information about the qualification process.
WHERE THE DESIGNER IS THE OWNER OF A
The owner of a house(1) is allowed to prepare and take responsibility for the design of the following projects, without having to be pre-qualified. The owner must still prepare plans and specifications in sufficient detail to demonstrate the project will comply with all technical requirements of the Ontario Building Code.
Qualified Designer Required
An owner would need to possess the required technical qualifications(2) to design any other building structure on their property.
WHERE THE DESIGNER IS NOT THE OWNER OF
Persons who prepare plans and specifications and take responsibility for the design of construction projects related to a house(1) need not be pre-qualified in their Building Code knowledge for the following projects.
Qualified Designer Required
Persons who prepare plans and specifications and take responsibility for the design of the following construction projects related to a house(1) must possess the required technical qualifications(2), but need not be a registered designer (for which they would require liability insurance)
Registered Designer Required
Persons who prepare plans and specifications and take responsibility for the design of the following construction projects related to a house(1) must possess the required technical qualifications and must be a registered designer (for which they will require liability insurance).
A new house(1) if the designer is not a builder registered under the Ontario New Home Warranties Plan Act.
Construction of a residential building other than a house(1), a factory-built house, a mobile home or a park model trailer, such as a rooming house or a triplex .
Construction of a new detached structure other than an ancillary building.
Extension or the material alteration or repair of an existing detached structure >50m2 that is associated with a house(1) where the structure is not an ancillary building.
An on-site sewage system if the designer is not the registered installer.
Any projects not described in the previous two subsections.
(1) A house is defined to be a detached house, a semi-detached house, a town house or a row house containing not more than two dwelling units in each house. (2) The designer is exempted from being qualified if someone else who is either an employee of a registered designer under 220.127.116.11.(1)(d), or is otherwise qualified under 18.104.22.168.(1) reviews and takes responsibility for the design compliance with the Building Code, as per 22.214.171.124.(2)(a).
The information contained in the articles above
represents our current understanding of the new legislation and is
prepared for purposes of convenience only and is subject to change.
Last updated December 16, 2013. For questions or comments regarding this site email: firstname.lastname@example.org