Review Project Checklists and Requirements

You must include construction drawings with your building permit application. The drawings you need depend on your project. Review the list below and submit only what applies to your scope of work.

Construction drawings must be prepared by a qualified design professional. Listed below are required qualifications for design professionals (reference only).

  • Homeowner without BCIN qualifications
    • Provided their name is on the property deed
    • A business or corporation is not listed on the property deed
  • House BCIN designer
  • Small Buildings BCIN designer
  • Large Buildings BCIN designer
  • Engineer
  • Architect

  • Small Buildings BCIN designer
  • Large Buildings BCIN designer
  • Engineer
  • Architect

  • Small Buildings BCIN designer
  • Large Buildings BCIN designer
  • Engineer
  • Architect

  • Large Buildings BCIN designer
  • Engineer
  • Architect

  • Large Buildings BCIN designer with Structural qualification

The list provided above is for reference only. The requirements for designers may change based on the scope of the proposed work or may require the participation of more than one design professional. Please refer to the Ontario Building Code for all guidelines regarding designer qualifications, including possible exemptions.

Typical information that should be present on the construction drawings is detailed below.

  • Lot lines, including dimensions
  • Location of:
    • All existing structures, as applicable, on the property
      • Main building
      • Decks, balconies and porches
      • Detached buildings and accessory structures
      • Septic systems and well locations
      • Swimming pools and enclosures
      • Driveway and parking spaces
    • Proposed structure, as applicable (see list above for applicable structures)
  • Dimensions of the structures noted above in relation to each other and lot lines
  • Entrances to the structures noted above
  • Grading information
  • Areas:
    • Lot area
    • Main building area
    • Deck, balcony and porch area
    • Detached buildings and accessory structures areas, individual or combined
    • Swimming pools
    • In the case of Additional Dwelling Units, a breakdown of individual unit areas – main and each ADU – will need to be provided
  • Percentage of front yard that is landscaped (soft landscaped, does not include hard surfaces such as gravel, pavement or concrete)
  • Building height, existing and proposed
  • Use of the building, existing and proposed
  • Location of overhead electrical conductors, if applicable
  • North arrow and municipal address

Please note that plot plans do not need to be provided for proposed interior work only, except if the proposed work encompasses an ADU.

  • Location and size of structural components:
    • Footings
    • Foundation Walls
    • Piers or pad footings
    • Slab-on ground
    • Stairs, handrails and guards, as required
  • Size, spacing and direction of:
    • Beams
    • Floor joist
    • Columns or jack posts
  • Location and size of any egress windows or doors
  • Location of smoke and carbon monoxide alarms
  • Weeping tile and sump pit location, if required
  • For projects including a deck or porch:
    • Type of decking materials
    • Fastening and connection details of components and from deck to wall
    • Post and base details

  • Floor plan for each floor level
    • In the case of renovations and additions, an existing and a proposed floor plan shall be provided for each floor level
  • Wall location and thickness, new and existing
  • Fire separation location and thickness, new and existing
  • Location and size of all windows and doors, including lintels and, if applicable, steel angles supporting masonry
  • Location of all plumbing fixtures
  • Location of all smoke and carbon monoxide alarms
  • If a floor above:
    • Size, spacing and direction of:
      • Beams
      • Floor joists
      • Columns or jack posts
  • If a roof above:
    • Size, spacing and direction of:
      • Beams
      • Rafters
      • Joists or trusses
  • Location and size of stairs, handrails and guards, as required
  • Location and construction details of any decks or porches
  • Identify use of all rooms

  • Footing or foundation depth
  • General appearance of the addition from all sides
  • Window and door sizes
  • Exterior finishes of all surfaces
  • For projects including a deck or porch:
    • Height of walking surface above grade
    • Height of guard above walking surface
    • Stair details, including rise, run, stringer and landing
    • Guard construction details not captured in the floor/framing plan
  • Location of grade and slope
  • Window wells and drainage to weeping tile

  • Footing and foundation sizes and depths, or slab design
  • Foundation construction and depth, including insulation and interior finishes
  • Foundation drainage layer, weeping tile and stone covering
  • Anchor bolt size and spacing
  • Floor construction
  • Wall construction, including stud height
  • Fire separation construction, including stud heights and fire rating
  • Roof construction including:
    • Size and spacing of:
      • Beams
      • Rafters
      • Joists or trusses
    • Pitch
    • Ventilation
  • Height from grade to roof peak
  • Height of ceiling and bulk heads

Additional information required:

  • Engineered stamped truss drawings and truss layouts for roofs constructed of pre-engineered roof trusses
  • The floor system design and layout as supplied from the manufacturer when pre-engineered floor joists are used
  • For residential projects:
    • Heat Loss Calculation and Design, by a qualified professional
    • For ADU projects, if a single, forced air heating system is being used for multiple units, details of required duct type smoke detector and furnace fuel and electrical supply shut down mechanisms are to be provided
  • For non-residential projects:
    • Mechanical and electrical drawings

Additional Notes Based on Type of Project

Deck blocks can only be used where:

  • The deck is not attached to the house;
  • The deck does not support a roof;
  • The deck is less than 55 sq m (592 sq ft); and
  • The distance from grade to the underside of the floor joists is not more than 600mm (23 5/8 in) at any point.

Wood Columns

  • Wood columns shall be not less than 140mm x 140mm (6”x6”) unless calculations are provided from a P. Eng. confirming that a lesser size is adequate
  • 100mm x 100mm (4” x 4”) columns may be used where the deck is less than 600mm above grade measured to the bottom of the joists, and
  • Columns greater than 600mm (23 5/8 in) in length are to be laterally supported or braced

Guards

  • The deck is more than 600mm (23 5/8 in) off the ground, a minimum 900mm (35 ½ in) high guard must be placed around the deck. If the deck exceeds 1800mm (5ft 11in) above ground, a 1070mm (42 in) high guard must be installed.
  • Opening in all guards must prevent passage of a 100mm (4 in) diameter sphere. If a bench is incorporated into the guard, the required guard height is measured above the bench surface (P.Eng may be required). Guards must comply with SB-7 or be engineered or have BMEC authorization.

Your septic design package should include:

  • Calculation sheets (pages 11 to 15 of the application form)
  • Size and area of home
  • Number of bedrooms
  • Number of fixtures
  • Site evaluation indicating percolation time of existing soil
  • Documentation indication percolation time of any fill materials used
  • Septic tank size
  • Pump chamber size (if applicable)
  • Leaching bed design (plan view and cross section)

When altering an existing system, an analysis may be required of the existing septic system.  If required, the analysis must be prepared by a qualified sewage system designer and provided along with the application submittal. Any changes to the sewage system required as a result of the proposed changes or development must also be identified and detailed in construction drawings prepared by the sewage system designer.

Your plan and anchorage details should include:

  • Area of sign
  • Area of building face (if applicable)
  • Foundation and structural design
  • Type of sign
  • Connection details

Details to be provided for the enclosure:

  • Type of fencing to be installed (e.g. Chain Link, Pressure Treated Wood etc.)
    • The maximum size of mesh for chain link fencing is 1 1/2" diamond mesh. 
  • Height of the swimming pool enclosure
  • Spacing between posts
  • Type and location of lockable, self-closing/latching device

Proprietary Products and Materials

Not all products or materials sold are approved for use in Ontario, as many products fall outside of the material requirements identified in the OBC. These products range from decking materials and guard systems to plumbing and foundation damp proofing systems. Where specific products or system types are required by the OBC, any alternative materials or systems must have either a Building Materials Evaluation Commission (BMEC) authorization or a Minister's Ruling to be used in Ontario.

Engineered Design

For houses and small buildings, Part 9 of Division B of the OBC provides prescriptive guidance for designing the structural system of a building using conventional materials. The systems in Part 9, however, are subject to a range of limitations as to when they can be used. If a component of a structural system of a building falls outside of the limitations of Part 9 of the OBC (ie: roof trusses, point loaded beams, aluminum and glass railing systems, etc.), the component or system must be designed in accordance with structural requirements of Part 4 of Division of the OBC. Part 4 design typically requires the services of a professional engineer.

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