Mississauga Deck Permit Checklist
Complete guide to required documents, forms, and specifications under the 2024 Ontario Building Code.
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Before You Submit
📋 2024 Ontario Building Code: As of April 1, 2025, all permit applications must comply with the 2024 OBC. This checklist reflects the current requirements.
Mississauga Building Division processes residential deck and porch permit applications through their online Building Permit Portal. Ensuring your application is complete before submitting helps avoid delays and rejections.
This checklist is based on Mississauga Building's official requirements for residential deck and porch permits under the 2024 Ontario Building Code.
Required Documents
Completed Mississauga building permit application form with all required fields
Apply onlineBCIN designer information for structural and architectural components
Shows property boundaries, existing structures, proposed deck location, setbacks from property lines, and lot dimensions
Plan view showing deck dimensions, door/window locations, stairs, and relationship to existing house
All sides of the deck showing heights, railings, guards, and relationship to existing structure
Footing details, beam/joist connections, ledger board attachment, guard/railing details with dimensions
Current survey showing property dimensions and existing structures
Confirmation of zoning compliance if variances or special conditions apply
PDF Format Requirements
Mississauga's electronic submission portal has specific PDF requirements. Files that don't meet these specifications may be rejected automatically.
Mississauga-Specific Requirements
Setback Requirements
Minimum setbacks from property lines vary by zone. Most residential zones require a minimum 0.6m (2 ft) side yard setback and 7.5m (25 ft) rear yard setback. Check your specific zoning at the Planning counter or online.
Lot Coverage
Decks count toward lot coverage calculations. Ensure your total lot coverage (including the deck) doesn't exceed the maximum for your zone.
Guard Heights
Guards (railings) are required when the deck surface is more than 600mm (24 inches) above adjacent ground. Minimum guard height is 1070mm (42 inches) for residential.
Common Rejection Reasons
Based on common feedback, these are frequent reasons deck permit applications get returned:
Permit Fees (2025)
Mississauga permit fees are calculated based on the construction value and type of work. For a typical residential deck:
Actual fees depend on construction value. Use Mississauga's fee calculator for exact amounts.
Official Resources
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Run Free Pre-CheckThis checklist is for informational purposes only and is based on publicly available Mississauga Building requirements. Requirements may change. Always verify with mississauga.ca for the most current information.