Office
Could do hidden office this way
This is an Okite Countertop The desk is supported by steel rods with a welded plate that is bolted to the wall studs and sheetrocked over. A 1" steel rod is welded to a plate, which supports a plywood deck and the final countertop surface
Pullout drawers
The desk in this photo is only 18" deep. Wall mounting it and the storage makes the room feel bigger and that the furniture is "floating" off the floor. Take a look at some of these options from Apartment Therapy: apartmenttherapy.com
M legs
It's two pieces -- you can see the joint. It is Macassar ebony.
Could do in white
Desk from Four Hands
Flooring Idea
Tower on left for desk?
Could box ceiling like this to move HVAC from floor up?
TV wall idea
Q