Dis/Apparating 12 Grimmauld Place was (More Fidelius Charm)

[kempermentor]

No: HPFGUIDX 130587

Steve:
Can you apparate into and out of a Fidelius protected house[?] We 
didn't see anyone do that at Grimmauld Place. Entrance by Apparation 
would certainly solve some logistical problems, but would access be 
limited to people who had officially be given the secret? You would 
certainly /want/ it to be limited, but we don't know that it is.

Kemper:
I assumed that 12 Grimmauld Place was a place a bit like Hogwarts: you 
can't apparate out of it or disapparate in to it.  Sirius' grandfather 
(or some male Black male) had all sorts of magical protections.  I 
thought one of those protections was making it impossible to 
dis/apparate.  

It seems as though this type of protection would be incorporated by the 
affluent members of the WW.  I would guess the Malfoy Mansion has this 
protection as well.