What is your Square Footprint?

Each of you has a primary residence, maybe two! We're going to find out what proportion of that residence is occupied by you. Prior to a house being constructed, a blueprint of the design of the interior is determined. Along with that blueprint comes an amount of square footage (area) the living space takes up. This IS NOT just the walls around the outside of the house; that's the land area the home occupies. The square footage is livable space on the interior of the home. Bedrooms, bathrooms, living/family rooms, kitchen, studies, and for our project, closets. It does not include hallways, garages, unfinished basements, sheds, backyards, exposed porches, or kitchen pantries.
Your task is this: determine how much of the house is space designated just for you in square footage. First, you need to make a fairly accurate diagram of the interior of the home's living spaces. 3 floors? Then you'll have 3 diagrams to make (you'll live). It should look something like this:

 Obviously your diagram won't be as defined as this image of a blueprint, but you get the idea. You'll then need to measure, using a tape measure, every living space in the house/apartment. Put the actual measurements inside the diagram. In other words, if your living room mesaures 19'X12', then put the 228 sq.ft. number inside that room in the diagram. After getting the square footage of each and every living space within and written in the appropriate spaces, then add them all up! that's the total square footage of your home (again, don't forget the closets). Lastly, you'll need to take the square footage of your room/closet, and then divide that total by the total square footage of the house. So if your room/closet is 175 sq.ft., and the whole house is 2400 sq.ft., then 175/2400= 7.3% of the house. Got it?
If perchance you share a room with a sibling/relative/stranger, then you'll just simply cut the percentage in half (or thirds or whatever). Ask me if you're not sure how to approach that. If you have multiple residences, then you have choices! Pick which home works better for you for this particular project. No tape measure? Talk to me about that and we'll try to resolve it.
To complete:
1) Diagram your entire house, floor by floor, separately.
2) Measure the square footage of each and every living area as defined above.
3) Put those measurements in the diagram appropriately.
4) Determine your Square Footprint. How much of the house is "yours"?