Project template
Your preparation checklist
Use it as a working list. The final submission still needs to match your actual scope and the City’s current requirements.
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What to do next
- Choose the skylight location
- Identify affected rafters/trusses
- Prepare structural details
- Submit before cutting the roof opening
Official sources behind this page
Mississauga explicitly lists skylights among projects requiring a building permit.
The application should describe the new opening and any framing affected by the skylight.
Need the full project answer?
The main guide keeps the permit trigger, zoning questions, documents, fees, timing and next steps together.
Open the skylight guide