Do I need a adu permit in New York?

Yes. New York requires a adu permit for this type of project. Submitting without a permit may result in fines, required removal, or complications when selling your property.

How long does adu permit approval take in New York?

Processing times in New York vary depending on project complexity and current review volume. The process involves 7 steps. Contact New York Development Services for current timelines.

What documents are required for a adu permit in New York?

New York requires 6 documents including DOB NOW Application, Architectural Plans, Site Plan, Structural Design Documents, and others. See the full list above for details.

What happens if I build without a adu permit in New York?

Building without a permit in New York can result in stop-work orders, fines, required removal of work, difficulty selling your property, and insurance complications. It is strongly recommended to obtain proper permits before starting work.

Can PermitMagic help prepare my adu permit submission in New York?

Yes. PermitMagic generates a submission-ready packet tailored to New York's requirements, including a document checklist, workflow steps, and authority references. Start a permit plan to get your personalized packet.

How much does a adu permit cost in New York?

ADU permit fees in New York typically range from $9,000 to $24,750, depending on project scope. Fees may include building permit, plan review, and technology surcharges. Verify current fees with New York.

ADU Permit Online Portal Guide in New York, New York

Everything you need to apply for a adu permit in New York, New York — documents, fees, steps, and a downloadable submission packet.

Build My Permit Packet View Requirements

Key Facts

Permit required: Yes
Submission method: Online
Typical fee range: $9,000 – $24,750
Review time: Varies by jurisdiction
Inspections: 6 inspections required

VerifiedLast verified: Feb 15, 20262 verified sources

NYC DOB

Verified

7-step online submission process — account registration required[1][2]

Open Portal

Step 1: ADU Pilot Program Verification

[3][4]

Verify property is within eligible ADU pilot program district. NYC ADU regulations are limited and vary by zone.

Portal steps may change without notice. Always confirm the current process at New York's online portal.

Avoid rejections — generate a submission-ready packet

Get a personalized ADU permit packet for New York, New York — tailored to your project details.

Required forms: DOB NOW Application, and more
Pre-filled templates: Permit Cover Sheet
Fee breakdown: $3,000–$15,000 estimated total
Step-by-step NYC DOB portal submission guide
Inspection prep checklist (6 items)
Personalized for your specific project details

Build My Permit Packet

Free to preview · Pro to download

Required Documents

New York requires the following documents for this permit application.

DOB NOW Application

Building information submitted through DOB NOW online system. NYC has ADU pilot programs; requirements vary by district.

Architectural Plans

Plans prepared by New York licensed architect including all details per NYC Building Code requirements

Site Plan

Site plan showing property boundaries, building location, required setbacks, lot coverage, and access

Structural Design Documents

Structural design sealed by New York licensed professional engineer (PE)

Mechanical, Electrical, Plumbing Plans

MEP plans showing all building systems connections, separate metering, and compliance with NYC Energy Code

NYC Energy Code Compliance Documentation

Energy code compliance report demonstrating adherence to NYC Energy Conservation Code

Fees and Timeline

Fee Breakdown

Fee	Range	Confidence
ADU Permit Fee	$6,000 – $15,000	Verified
Plan Review Fee	$3,000 – $9,750	Verified

Inspections Required

Foundation inspection per NYC code standards

Framing inspection and structural verification

Electrical system installation and panel inspection

Plumbing rough-in and fixture connections

Mechanical and HVAC system inspection

Final inspection with energy code compliance verification

Authority Sources

Data on this page is sourced from official records published by the permitting authority. Always verify requirements directly before submitting.

NYC DOB

Last verified: February 15, 2026

2 sources referenced

Official page

NYC Building Code

Verified February 15, 2026

Portal guide

NYC DOB NOW Online Portal

Verified February 15, 2026

Official page

NYC ADU Pilot Program Guidelines

Verified February 15, 2026

Frequently Asked Questions

Do I need a adu permit in New York?: Yes. New York requires a adu permit for this type of project. Submitting without a permit may result in fines, required removal, or complications when selling your property.
How long does adu permit approval take in New York?: Processing times in New York vary depending on project complexity and current review volume. The process involves 7 steps. Contact New York Development Services for current timelines.
What documents are required for a adu permit in New York?: New York requires 6 documents including DOB NOW Application, Architectural Plans, Site Plan, Structural Design Documents, and others. See the full list above for details.
What happens if I build without a adu permit in New York?: Building without a permit in New York can result in stop-work orders, fines, required removal of work, difficulty selling your property, and insurance complications. It is strongly recommended to obtain proper permits before starting work.
Can PermitMagic help prepare my adu permit submission in New York?: Yes. PermitMagic generates a submission-ready packet tailored to New York's requirements, including a document checklist, workflow steps, and authority references. Start a permit plan to get your personalized packet.
How much does a adu permit cost in New York?: ADU permit fees in New York typically range from $9,000 to $24,750, depending on project scope. Fees may include building permit, plan review, and technology surcharges. Verify current fees with New York.