I. LOVE. This. Lot.
I previously had a private school I titled "Hilly Heights" because I couldn't think of a name for it. Just pretend the kids who go there live in fancy places like this. This is a 40x30 high rise with two floors, one bedroom, and two bathrooms. It has a laundry room that could alternate as a kids room. It uses things from every expansion and HELS, but none but Late Night are absolutely necessary for it to function. I didn't catch the price, I'll update next time I play.
The entrance faces the opposite direction was the deck, so place it facing AWAY from whatever you want your sims to have a good view of.