Permit Required? Required
Typical Fee Range $200–$1,200 Minimum fee $280; plan review fee separate
Fee Method Valuation-based (% of construction cost)
Apply Online Apply at NYC Department of Buildings →

Permit Fee Estimator

Estimate your New York City deck permit fee based on project value. This is an estimate only — verify with NYC Department of Buildings.

Estimated Permit Fee
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This is an estimate based on the Valuation-based (% of construction cost) fee structure. Actual fees depend on your project scope and may include plan review fees. Always confirm with NYC Department of Buildings.

What's Required in New York City

  • All decks attached to a structure require an Alt-1 or Alt-2 permit
  • Structural drawings stamped by a licensed PE or RA are required
  • Decks above 30 inches from grade require guardrails per NYC BC §1015
  • Decks must maintain setbacks: typically 3 ft from rear property line in residential zones
  • Decks in flood zones (AE, VE) must comply with NYC flood-resilience regulations
  • Rooftop decks have additional structural, egress, and waterproofing requirements

How to Get a Deck Permit in New York City

1

Hire an Architect or Engineer

NYC requires all deck permits to be filed by a licensed architect (RA) or professional engineer (PE). They will prepare and stamp structural drawings.

2

File via DOB NOW: Build

Your design professional will file an Alt-2 application through DOB NOW. You can track application status online.

3

Plan Review

DOB reviews structural plans. Simple decks may qualify for self-certification (faster); complex structures go through full review (4–12 weeks).

4

Pay Permit Fees

Fees are valuation-based: approximately 1.2% of construction cost with a minimum of $280. Pay online through DOB NOW.

5

Construction & Inspections

Post the permit on-site during construction. Schedule progress and final inspections through DOB NOW upon completion.

Frequently Asked Questions

NYC deck permits typically cost $200–$1,200 depending on deck size and construction value. The fee is approximately 1.2% of the estimated construction cost, with a minimum fee of around $280. You'll also pay a plan review fee and potentially filing fees.
No. All decks attached to a building or structure in NYC require a permit. Freestanding decks below 200 sq ft and under 30 inches from grade may qualify as minor work, but you should confirm with DOB. Building without a permit risks a DOB violation and stop-work order.
Simple residential decks with self-certified plans can be approved in 1–2 weeks. Decks requiring full DOB plan review typically take 4–10 weeks. Historic district or complex rooftop decks can take 3–6 months.
Freestanding (floating) decks under 200 sq ft and less than 30 inches above grade may not require a permit, but must still comply with zoning setbacks. Always check with NYC DOB before building to confirm your specific situation.