Waterloo deck permit: when you need one and what to submit
The short answer
Yes, if the deck is more than 24 in (610 mm) above the ground or has a roof. City fee: $132 flat fee.
Last verified 2026-10-06 · City of Waterloo: Decks checklist, City of Waterloo: Building permit timelines and fees, City of Waterloo: Owner declaration form (PDF)- City fee
- $132 flat fee
- Where to apply
- City of Waterloo building permit portal
- Review time
- The City targets 10 business days for a complete house application.
Waterloo's general page also lists attached structures, so confirm a low deck that's bolted to the house before you skip the permit. Homeowners can draw their own plans by signing the City's owner declaration.
What Waterloo wants to see
- A site plan with the lot lines, the house and the deck, with distances
- A framing plan: joists, beams, posts and footings with sizes and spacing
- Elevations and sections: guard, stairs, the ledger connection and footing depth
- The application form and the owner or designer declaration
Local quirks
- Fence posts must be at least 4 × 4 in and sunk 0.6 m, and the good side faces your neighbour unless they agree otherwise.
Get your Waterloo deck application ready to submit.
Pick your project, add your address and see your design and permit answer. Free, no card.