There were several things you have to consider to build your own music studio. The first is location and secondly is purposes. Location held an important thing to consider, especially if you had planned to commercially used it as a business alternatives. Its not effective having your music studio in nearby restaurant or near the main road. Because its possible the player are eager to eat rather than playing music.
Second is the purpose, if it was meant for your own group music, than garage or under ground are good, but there are several things you need to know, this is important to prevent angry neighbor knocking at your door.
Some silencer are needed to kept other side of the house not disturb.