I actually have 2 questions...
I live in Perth Amboy, New Jersey (I'm saying this just in case the laws here are different from other areas)
First question: My grandparents own a two family house and I am living in the upstairs apartment. In the back yard there is a wooden staircase that leads to the upstairs apartment as an alternate entrance. We haven't been able to use it because it's old, dry rotted, and falling apart. We want to completely replace it and rebuild a new one that will be identical to the old one. The support beams on the existing staircase are extremely wobbly and leaning very far to the left so the whole structure needs to be torn down and replaced. Do we need a permit to replace the staircase even though it will be identical to the old one?
And my second question is: We also want to fix up the basement because I have a band and we want to make our own studio to practice and record in. I'd like to know which of the following I would need a permit for: Putting down tile over the concrete floor, covering the cinder block walls with drywall, replacing the windows, and insulating and soundproofing the whole basement. The layout of the house will not be changed, and the blueprints will not need to be updated.
Do I need any permits? We plan on hiring someone to do the stairs and my father and grandfather will be doing the basement.

