Noisy Neighbor

The problem you have probably does not have a cheap solution. I have not encountered the problem myself but what you will likely have to do is build out the common wall to achieve some sound proofing.

Basically you add thickness to the wall with material that will insulate against sound penetration.

You said in another post that it may involve a stair case of a duplexed neighboring apartment. Sound might be coming through the ceiling as well which could require additional work.

A couple things to consider before going down the costly construction route.

1) Stairs -- If the primary source of noise is associated with your neighbor treading their stairs, ask them if they are carpeted or try a thicker type of carpeting. Even at your dime this solution could be a lot cheaper.

2) Source where the noise is penetrating. A sound acoustician can provide a report that will help in sourcing the noise and properly knowing where to apply sound proofing.

3) Approach Your Neighbor -- If you approach them kindly they might be able to make little changes in how they move about their apartment that can improve the amount of sound.

There was a story in the paper about this the other week. Apparently the issues are mass of the wall and penetrations through the wall. For the mass, there're thin high-density sheets that're used in cars to dampen road noise. There're similar products for construction, I guess.

Very very helpful!! I will definitley talk to them, but since I'm doing all sorts of construction and dont want to be the new annoying neighbor right out of the gate--I think I'll go with the soundproofing option. Any reccomendations on which type to use?

Thanks again for taking the time to advise--appreciate it

From what I understand, the key is total isolation of vibration.

That means attaching sheetrock (or specialized noise-mitigating wallboard) to a frame that's built out a bit from the existing wall; having a rubberized material where that frame meets the floor, ceiling, and side walls; and I think even something to keep vibrations from transferring through screws.

Float your room! build a room inside the room!
(like a reverse recording booth)