Be glad you&#x27;re not dealing with the DOB in NY, esp in Brooklyn. The code is so thick that&#x27;s it&#x27;s impossible to not violate it in some way... worse yet the decisioning of the employees that approve them are arbitrary.<p>Friend of mine were forced alter the plans to include sprinklers in the build even for a single family without a CO change. This was before this was a requirement for all new single family. They just decided that you must do it. They even got a FDNY waiver, DOB didn&#x27;t care. So they had to add it to the plan (at about 40k install) just to move the process along.