Oh, OK... The HQ's aluded to would be the various clubs' individual domiciles.
Like for example, the RHLC has its own HQ decorated in erm, however it is you've kept the place in Richard-esque shape so far up to now. Then, there'd be additional doors that one could walk in and out of, from one room that houses the RHLC, down the corridor, and over to the room where the JNC would be located. All the Muppeteer fan clubs' HQ's are here, a good place for each to have an equal space under one roof.