This is as one-point perspective without plan drawing of Professor Mobley's Office in the Goebel building at Baylor University. 

This is a one-point perspective drawing with a plan of a living room.

This is a one-point perspective rough draft for the office.

This is a one-point perspective rough draft for the living room. 

This is a grid that was placed above the living room perspective drawing in order to have correct placement of objects within the space.