I call it a 2/3 story because it's a fully built 2 story but has a decent size "attic" with stairs so it CAN be a full 3 story if you want.
Ground floor has 9 rooms and 2 closets. All 1st floor lighting is glowstone flush in ceilings in various designs. Different variations of flooring for each room, no 2 are the same.
Full staircase for all 3 levels.
2nd floor has 5 rooms and 2 closets. All redstone lamp lighting flush in ceiling with various designs.
Attic is where all the redstone dust and levers are for the 2nd floor lights which is why I didn't build rooms and such for a 3rd floor. You can simply replace all redstone lamps with glowstone and free up the 3rd floor for building rooms if desired.
I tested the schematic myself (I test all mine before posting them here) and for some reason when it paste/loads some of the levers in the attic wont be attached to their blocks. So you may have to run up there, pick them up, place them, and turn them on for all the lights to come on. As far as I've seen it's strictly the levers, all lighting and dust stay intact. Just an FYI so you'll know 1st thing.
Structure is 51 blocks long x 51 blocks wide x 26 blocks tall