Decks, Porches and Patios

A deck, porch or patio that is less than 0.6 metres (2 feet) above the ground and is not attached to the house is permitted by the City’s Zoning By-law and does not require a building permit.

Building Permit Required
A building permit is required for any deck or porch that is physically attached or anchored to your house. 
A building permit is also required for any deck or porch that is 0.6 metres or more above the ground.  In addition, the deck must meet the Zoning By-law requirements for building setbacks and permitted encroachments.

Contact Zoning Services at for more information about setback requirements for your property. 

For information about building permit requirements, contact the Building Division’s Permits Section at 905-874-2401.