Freddie’s Steinway was used in No One But You video and probably on the actual record. Also it can be seen behind Brian in the interview on Wembley DVD. So it's not in the Garden Lodge.
I think that Freddie's Yamaha baby grand should be there on its place.
I heard Roger had it at Cossford Mill but some sources claim as well that Brian's got it. Perhaps they take turns and each one takes it for one year ;)
Indeed the Yamaha is at Logan Place.
The only evidence I remember seeing for Rog having it was from the Happiness era, so maybe he had it then and when they were working on MIH it got moved to Brian's place and it's been there ever since?