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.
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