A homeowner's guide to NYC building permits

Few things stall a New York renovation faster than a permit problem. The good news: with the right paperwork and a contractor who knows the process, approvals rarely need to be the bottleneck people fear.

This guide walks through when you need a permit, what the Department of Buildings (DOB) is actually reviewing, and how an experienced general contractor keeps the whole thing moving.

Most structural, plumbing, electrical, and mechanical work in New York City requires a DOB permit. So do changes to a building's footprint, use, or occupancy. Cosmetic work — painting, flooring, cabinetry — generally does not.

The safe rule of thumb: if you're moving a wall, changing systems, or altering the structure, assume a permit is required and confirm before any work begins.

Filings are checked for code compliance, zoning, and safety. That means drawings must be complete, stamped where required, and consistent with the property's certificate of occupancy.

Incomplete or inconsistent filings are the number-one cause of delays — which is exactly why we bring design and permitting under one roof.

We prepare the drawings, file the application, coordinate with plan examiners, and schedule inspections through to final sign-off. You get one team accountable for the whole path — not a hand-off between an architect, an expediter, and a builder who never speak.