Deck Permit in New York City, NY (2026)

Everything you need to know about getting a deck permit in New York City: fees, requirements, exemptions, and direct links to the NYC Department of Buildings (DOB).

Verified from official New York City sources — Last checked April 2026

Quick Facts for New York City

Permit Fees

Minimum filing fee: $130 (per Local Law 128 of 2024, effective Dec 21, 2025). Actual fee calculated on sliding scale based on estimated construction cost. Residential alteration fees range from ~$300-$10,000+ depending on scope.

Processing Time

Alteration Type 2 (Alt-2) permits: typically 4-8 weeks. Each objection/correction cycle adds 2-4 weeks.

Apply Online

Yes — via DOB NOW: Build

Building Code

2022 NYC Construction Codes (based on 2015 IBC with NYC-specific amendments, effective November 7, 2022)

Do You Need a Deck Permit in New York City?

Permit Exemption

NYC does not have a simple height/size exemption like most cities. Virtually all exterior construction work requires DOB filing. Consult DOB for specific project requirements.

If your deck does NOT meet all exemption criteria, you must obtain a permit before construction. Building without a required permit can result in fines, stop-work orders, and required demolition.

New York City-Specific Deck Rules

Decks are filed as Alteration Type 2 (Alt-2) applications
A licensed Professional Engineer (PE) or Registered Architect (RA) MUST file on behalf of the owner
As of December 2025, 100% upfront fee payment required at filing for non-electrical work
NYC has its own construction codes separate from New York State
Landmarks Preservation Commission review required in designated historic districts
DOB publishes specific code notes for decks and porches

How to Get a Deck Permit in New York City

1

Check if your deck needs a permit

Review the exemption criteria above. If your deck exceeds any threshold, a permit is required.

2

Prepare your plans

You'll need a site plan, deck dimensions, framing details, and footing specifications. Check New York City's specific documentation requirements.

3

Submit your application

Apply through DOB NOW: Build . Pay the permit fee at submission.

4

Build and schedule inspections

Once approved, post your permit visibly and schedule required inspections (typically footing, framing, and final).

Official New York City Resources

DOB NOW: Build — Apply for Permits Online Fee Schedule Deck-Specific Requirements
Transparency note: The following items could not be verified from official city sources and should be confirmed directly: Exact fee for a typical deck — sliding scale requires project-specific details.

Estimate Your Deck Cost

Get an instant cost estimate for your deck project in New York City.

Deck Cost Calculator

Sources

https://www.nyc.gov/site/buildings/property-or-business-owner/project-requirements-owner-deck.pagehttps://www.nyc.gov/site/buildings/dob/building-applications-permits.pagehttps://www.nyc.gov/assets/buildings/pdf/code_notes_deck_and_porches.pdf

Data verified April 2026. Fees, processing times, and requirements are subject to change. Always confirm current information with New York City's NYC Department of Buildings (DOB).