"Level seven, Department of Magical Games and Sports, incorporating the British and Irish Quidditch League Headquarters, Official Gobstones Club, and Ludicrous Patents Office."
--disembodied female voice (OP7)
The messiness of this floor (OP7) stands in contrast with what we know about the rest of the Ministry Headquarters. The Ministry as a whole seems to be very tidy and efficient, Level one appears to be very orderly and carefully decorated (DH13), and it's hard to immagine Level five being less than perfectly organized with Barty Crouch Sr. and Percy Weasley working there. -BB
Lexicon list of Ministry of Magic Departments and Offices