Alt-2 Filing in Brooklyn — DOB NOW Expediting Support
Filing an Alt-2 in Brooklyn: What Architects Need to Know
If you're filing an Alteration Type 2 application in Brooklyn, you already know it's not as simple as uploading drawings to DOB NOW and waiting for approval. Brooklyn's housing stock — brownstones, pre-war apartments, row houses, and mixed-use buildings — creates a unique set of filing challenges that don't always show up in the code books.
What qualifies as an Alt-2?
An Alteration Type 2 covers work in an existing building where the use, occupancy, and egress aren't changing. That includes most interior renovations: kitchen and bathroom gut-renos, apartment combinations, commercial tenant fit-outs, and residential upgrades. If your project doesn't change the Certificate of Occupancy, it's almost certainly an Alt-2.
Where Brooklyn filings get tricky
Brooklyn's building stock is old. That means you're frequently dealing with buildings that pre-date the 1968 code, which triggers Prior Code considerations for structural elements, egress, and fire protection. Plan examiners in Brooklyn are particularly attentive to energy code compliance under the NYC Energy Conservation Code, sprinkler and standpipe requirements under Local Law 26, and egress path compliance in multi-family brownstones.
The most common objection items on Brooklyn Alt-2 filings include incomplete energy analysis documentation (COMcheck or energy code compliance path), missing or incorrect Construction Classification and Occupancy Group designations, ACP5 or ACP7 asbestos documentation gaps, and drawing coordination issues between architectural and mechanical/plumbing plans.
How pre-filing drawing review prevents delays
The single most effective way to reduce plan examination time on a Brooklyn Alt-2 is to review the drawing set before submission — not after the plan examiner flags problems. A pre-filing review catches the objection items that add weeks or months to your approval timeline. Things like missing fire-rating details at corridor walls, incorrect egress width calculations, or energy code documentation that doesn't match the scope of work.
Free filing readiness assessment
Before your next Brooklyn filing, try our free Filing Readiness Audit — a 10-question assessment based on DOB's Plan Examination Guidelines that scores how prepared your submission is to pass on the first round.
→ Take the Free Filing Readiness Audit
Need expediting support?
Impetus Consultants handles DOB NOW alteration filings for small architecture firms across all five boroughs and all disciplines. We review your drawing set before filing to catch objection items before the plan examiner does.
Contact us: info@impetus-consultants.com | (646) 464-1675
