Old Mansion
The Old Mansion is a big abandoned house located on top of the hill in Westdyke, Alderney. There are few abandoned garages next to the mansion and behind them an extremly rare Sultan RS is parked.
Usually there are some around the mansion and some Tramps by the fire.
Two missions for Phil Bell are happening here: Truck Hustle and To Live and Die in Alderney.
It is speculated that this mansion belonged to Salvatore Leone as it is very similar to his house from other GTA Games.
This may be an Easter Egg. But, it is impossible that this is true as Rockstar Games stated that nothing from the past era would be used (apart from easter eggs).