Deck vs. Patio - What's the Difference on a Real Property Report?

The difference is 0.60m according to the City of Calgary Land Use Bylaw.

"deck" means an uncovered horizontal structure with a surface height greater than 0.6 metres above grade at any point that is intended for use as an outdoor amenity space but does not include a balcony (Land Use Bylaw, 1P2007, s 13.47).

The City of Calgary requires a building permit for all decks. Also, decks must not encroach into the 1.2m side setback area (Land Use Bylaw, 1P2007, s 337.9). Encroaching decks must be shown on a Surveyors' Real Property Report (RPR). Before issuing a compliance stamp, the City will either require the encroaching deck to be cut back or a relaxation could be granted after a 6-8 week process.

A fine looking deck greater than 0.60m in height

"patio" means an uncovered horizontal structure with a surface height, at any point, no greater than 0.60m above grade, intended for use as an outdoor amenity space (Land Use Bylaw, 1P2007, s 13.103).

Patios don't require a building permit and may extend right up to the property line.

This patio extends right up to the side property line

If your thinking about building a deck or patio, remember that 0.60m height is crucial when getting a Certificate of Compliance stamp for a property survey.