Do you need a permit for a deck or balcony in Côte Saint-Luc?

The rules, in short

• One wooden deck, behind the house, at least 2 m from the side lines (0.6 m from the shared line of a semi-detached house) and 3.05 m from the rear line; at most 0.60 m above the ground. (art. 4-4-5 b))
• One ground-level patio, behind the house, at least 0.91 m from the side and rear lines. (art. 4-4-5 c))
• A single-family balcony must be at least 3.05 m from the rear line and, at the back of the house, 2 m from the side lines. (art. 4-4-5 a))
• Balconies, decks, patios, gazebos, pergolas and solariums together: at most 50% of the rear yard. (art. 4-4-6)

Summary by Radar Foncier, in our own words: the official French text of the by-law, linked above, prevails.

Applying in Côte Saint-Luc

• Processing time: Up to 30 days for minor work (pool, shed, interior renovations) once the application is complete; currently longer because of high volume
• Cost: Outdoor structures (balconies, fences, garden sheds, pools): $75 per application + $11 per $1,000 of work, $150 minimum, plus a $2,500 to $5,000 deposit for damage to City property
• Urban planning department: 514 485-6800
• Permits on the municipality's website