architectural changes only add a full height wall on the open side of the room opposite the existing back wall extending completely from floor to ceiling and spanning the entire width of the opening the room should read as a completely enclosed four wall room close in the entire ceiling above the room extend the existing ceiling plane across the full room footprint so there are no openings gaps missing sections or visible sky above the room continue the existing crown molding around the newly enclosed wall and along the newly completed ceiling perimeter so the trim looks continuous and architecturally built in match the new wall ceiling crown molding baseboards and finishes exactly to the existing room important do not change the existing window window wall camera position room dimensions flooring lighting or any existing architectural elements do not add furniture or d cor the final result should look like a real fully enclosed architectural room with four walls and a completely closed ceiling
