Cage New home for C&C cage but not sure?

This summer I'm going to be finishing some rooms in my basement. My bedroom is in my basement and I have a large room off of my room that could be a walk in closet (but I don't have enough clothes for one). It also has a window, So without any use for the room I was thinking of making it into a Piggie Room! Does this sound like a good idea or no? They could still go upstairs for floor time and sun and stuff but I'm not down stairs ALL of the time when I'm home so I'm not sure if I should or not. Just set up their new 2x4 C&C cage and Thinking I want to add on already but don't have enough space in the main floor and basement living rooms for the size cage I'd like to build them. Any suggestions?