Ive been working on my '69 Chevelle in my apartment 1 car garage, while I have had one that is... I started workign on it outside. I'm 23, just out of college, and haven't had the money for a house yet. May look into renting a house in the summer.
Working in an apartment has been challenging. Im sure most of what I do is not allowed
I have an air compressor (plus several air tools and paint gun), 110v 90amp gassless MIG welder, and a lot of shelves, in a 10ft x 24ft garage. The air compressor is small, but loud... and hard to manage the noise of the compressor and cutoff wheel, or a grinder for that matter.
I get a lot of people stop and complement the car while I work (with the garage door open as usual). I've done everything from the engine to the bodywork (which is not done). I built the interior, rewired the entire car, and done engine work.