Additions

Designer requirements

All drawings submitted for building permit applications are required to be prepared and reviewed by a qualified designer, architect or professional engineer or as outlined in the Ontario Building Code.

All drawings prepared by an architect or professional engineer must be sealed, signed and dated. A general review, where required by the Ontario Building Code, is to be conducted during construction by an architect or professional engineer.

The Ontario Building Code requires qualified and registered designers, other than architects or professional engineers, who review and take responsibility for design activities to include the following information on all documents submitted:

• The name and Building Code Identification Number (BCIN) of the registered firm
• A statement that the qualified person has reviewed and taken responsibility for the design activities
• The name and BCIN of the qualified person
• The signature of the qualified person

Drawing requirements

Two sets of construction drawings must be provided.

All drawings must be provided on standard-sized sheets to a minimum scale of 1:75 or 3/16ths equals one foot. Drawings are to be fully dimensioned, signed and dated, and include information such as:

• Site plan (as approved under the City’s site plan control process)
• Key plan
• Architectural drawings (elevations must be as approved under the City’s site plan control process)
• Structural drawings
• Heating, ventilation and air conditioning (HVAC) drawings and calculations
• Plumbing drawings and calculations
• Electrical drawings
• Sprinkler system drawings complete with hydraulic calculations and water demand curve (if applicable)
• Fire alarm system drawings (if applicable)
• Specifications (if applicable)
• Onsite sewage system design (if applicable)
• Site servicing drawings (if applicable)
• Drawings for additions must differentiate between the existing building and the proposed extension
  • All drawings prepared by an architect or professional engineer, must be sealed, signed and dated

 Additional requirements

• Commonly Used Applicable Laws & Building Permits (PDF)
• Building Permit Applicant Authorization Form (PDF)
• Schedule 1 Designer Information Form (PDF)
• Land and Building Use Declaration Form (PDF)
• Owner’s Letter of Undertaking Respecting General Review Form (PDF)
• General Review Commitment Form (PDF)
• Non-housing Plumbing Data Sheet (PDF)
• Statement of Design Form and/or the Ontario Association of Architects Building Code Data Matrix (PDF)
• OBC SB-10 2017 Checklists - ASHRAE 189.1-2014.pdf
• OBC SB-10 2017 Checklists - ASHRAE 90.1-2013.pdf
• OBC SB-10 2017 Checklists - Part 9.pdf
• Site plan letter of undertaking or site plan agreement (if applicable)
• York Region Health approval (if applicable)
• Ministry of Health and Long-term Care approval (if applicable)