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Plans: what must they contain?

One of the primary reasons for delays in obtaining a building permit come from clients submitting insufficient or incomplete plans.

Here’s what our inspectors will require – in general – for various projects. Note that scale drawings of all projects are required by provincial law.

Decks, residential:

Post spacings, footing details, post sizes (6x6 mandatory), beam construction details, joist details (size, span, spacing); drawing may be required for complex decks/structures.

Garages:

Footing/frost wall details (or engineered slab plan), wall details, roof system details.

Simple additions, houses:

Floor plan mandatory, footing/foundation details, beam composition, joist (size, span, spacing), wall details (studs, sheathing, insulation, cladding), lintels, roof system (truss/rafter, insulation, sheathing, roofing material)

New houses:

Neat, scale/scalable drawing of all floors, footing/foundation details, beam composition, joist (size, span, spacing), wall details (studs, sheathing, insulation, cladding), lintels, roof system (truss/rafter, insulation, sheathing, roofing material), beam and post details (if applicable) egress window locations, soil gas pipe location, slab insulation (if applicable/required). If there are interior stairs, details on this are required to verify rise/run.

Duplexes:

All of the above, plus fire separation details (referenced to Part 9 assemblies, ULC-tested assemblies, or Appendix D), with requirement for STC 50 between units.

Change of occupancy, light commercial:

Detailed plan of all floors in existing building required.

Light commercial construction (Part 9 buildings):

Digital scale drawings (i.e. phone-captured images of plans NOT accepted), details on all structural elements (walls/floors/footings/foundations/roofing, including truss plan), Code matrix required for all but simple renovations/additions/builds. All required fire separations must be referenced to Part 9 or ULC-tested assemblies, or be referenced to Appendix D. Note requirement for STC for residential suites adjacent to other occupancies. Ventilation details required. Calculations of spa

New heavy commercial construction/restaurants/churches (Part 3):

Changes of occupancy and minor alterations may be permitted without a professional plan in some circumstances, otherwise professional designer and/or engineer required by law. Code matrix required. Fire separations must be referenced to ULC-rated assemblies or Appendix D. Ventilation details required.