Code: Renovation (NYC construction term)
Description: (Interior renovation) is construction work that changes, improves, or repairs part of an existing building, such as rooms, layouts, or systems, without tearing the whole building down. In NYC DOB language, many projects that owners call a “renovation” are actually filed as “alterations” when they need plans, permits, and approvals from the Department of Buildings.
Practical Meaning: For a NYC homeowner, a renovation usually means changing how your space looks or works—like a new kitchen, bathroom, or finished basement—but the city may treat this as an “alteration” that needs DOB‑filed plans and permits. Before you start, you should check if your planned renovation affects walls, structure, plumbing, gas, or electrical systems, because these items almost always require a licensed design professional and DOB approval.
Where You May See It: You may see the word “renovation” in contractor proposals, co‑op or condo alteration agreements, realtor listings, and homeowner conversations, while DOB paperwork and online systems describe the same work as an “alteration” (for example, Alteration Type 1 or Alteration Type 2 jobs).
Why It Matters: Understanding that “renovation” in everyday language often means “alteration” in DOB language helps you avoid doing work without required permits, which can lead to violations, fines, and orders to legalize or undo the work. It also matters for resale and refinancing, because buyers, lenders, and managing agents may ask for proof that major renovations were properly filed, approved, and signed off by DOB.
Source: More about renovation in NYC