Attempting to force appreciation on a recent SFH purchase

[Christian Chevier]

Trying to accomplish: Increase the appraised value of a resent SFH purchase so I can refinance at a higher value.

Question: The home purchased lists 3 bed 1 bath. Up stairs on the third floor is a large finished attic room with two windows(no closet no door to the entrance). If I add a closet, would this room be considered a true bed room in turn changing the home to a 4 bed 1 bath? 

Or would I need to add a closet and a entry door at the top of the stairs to close off the room?

Thank you!