I grew in a two bedroom apartment before. It was a standard apt but the master bedroom (mine) was walk in closet of which I dedicated the back to. I grew 4-5 soil plants with a 400w HPS. They grew pretty thick and pretty big

It was my first grow, and it didn't turn out so well. I later learned that I too overwatered, (newbie mistake of being excited) and that at some points the light was too close etc. Not only that but since I was afraid to cut a hole in the roof of the apartment unit I was in, there was no proper ventilation in the room at all.

Anyways, If you are planning on growing indoors without fancy equipment such as some form of adequate lighting ie: flourescent, HPS, Metal Hailide then you shouldn't attempt growing indoors. The exception to this would be if in your case you were just getting the seedling started under minimal light which, indoors has plenty of, and then later transplanting to soil outside. From what I can tell that is not your intentions?