Definitions
Deck
A deck is a raised uncovered platform that is attached to a dwelling. A deck generally requires a building permit, and will need protective guards if it has a walking surface greater than 24 inches above grade.
Porch
A porch is a covered structure that usually forms part of the entrance of a dwelling. It may be enclosed or unenclosed. Any porch requires a building permit and will need protective guards if it has a walking surface greater than 24 inches above grade.
Patio
A patio is an uncovered platform at grade level that is usually constructed of concrete or stone. A patio generally does not require a building permit, unless it interferes with an existing structure.
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Alexandra Smith
Building and Planning Administrative Assistant
Township of Alnwick/Haldimand
Grafton Municipal Building
10836 County Road #2, Grafton
Ontario, Canada K0K 2G0
T. 1-905-349-2822 X29
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