bezel76

There's something that's been really bugging me for a couple of days now and I've got to know... Does anyone know the name of the house that Lord Egware lives/dies in in the Hercule Poirot mystery 'Lord Edgware Dies'???

I know it is somewhere in the London area and that it is a Grade I listed house but I can't for the life of me remember the name of the house (it is a real house of course) that this episode's location was filmed in.

It was also used in some silly TV program where they tried to get a chav family to act posh and they gave one of them a prize or something. I love this house and I really want to see it for myself! Any help here would be appreciated!