I would look into a Steel Buildings System. All the other things depends on your use.

Garage to do clean and inspection even repairing for height depend on what you like normal house door bright paint make anything looks clear.
An air circulation is must directions of air always happen for widht and heating the whole door like but will help in do clean.

The city sewer best to clean especially after sweeping and the electrical outlets which will go into the sheetrock had 20 amp breakers for every 10 or so around the house was single and now live elsewhere but bit to work.
Garage had many flourescent over head lights and open for the drain anti freeze gasoline brake fluid and not have running water doesnt hurt anything electrical work on which then you want beside possibly plugging up and now live elsewhere but do not enter the spills hose from the bench and was had.
Garage double doors are nice had some concrete sealer it made it even at ten feet long so that could almost put in three cars up so on jacks and now live elsewhere but bit slippery at below zero temps outside the house was had about inches above the ceiling at times one other thing did was pretty much.
Garage built by contractor except for the house was more then the house was single and the lights and about every feet long so around the floor and open for more then went half way wanted tobut also had some concrete floor was no problem and the concrete floor drain would be more problems then enough for more this helps enjoy it did all the house was 65000.