ServiCover📌 Key Takeaway: Deck permits typically cost about $225-$500, with engineered drawings adding more for raised or pier-supported decks. Unpermitted decks can cause problems at resale.
When You Need a Permit
- Decks attached to the house
- Decks more than about 30 inches above grade
- Decks over a certain size (varies by town)
- Decks with roofs or electrical work
What Inspectors Check
- Footing depth and size
- Ledger attachment and flashing
- Joist spans and hardware
- Railing height and baluster spacing
- Stair dimensions
Why It Matters at Resale
Buyers' inspectors and appraisers may flag unpermitted decks. You could be asked to get a retroactive permit, make changes, or remove the deck.
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Get Free Quotes →Frequently Asked Questions
Who applies for the permit?
Usually the contractor, but confirm it in your contract.
Do freestanding low decks need permits?
Some towns exempt small, low, freestanding decks. Check local rules.
🔎 How we research: The ServiCover Editorial Team compiles prices and guidance from published 2026 cost guides, manufacturer information and industry sources. Prices are national ranges and vary by location, home and provider, so always compare written quotes. We don't perform the work ourselves, and we may earn a commission when you request quotes through our partners — see our Advertiser Disclosure.