The Magic Roundabout

What's all this about then? Said Esmeralda to Dougal.
Just a view of Aberdeen said Dougal.
What's that big green gasometer thing then? Said Esmeralda.
Well, said Dougal, it's a view from the Gramps over Kincorth towards Garthdee including the new Scott Skinner Robert Gordons University Campus building which of course is going to win many architectural prizes and be around for a half century or so.
How old are the houses in the foreground? Said Esmeralda.
Dougal replied, they were built in the 1930's by Scott Skinner.
So the Scott Skinner houses, said Esmeralda, are eighty years old and made of granite and the new Robert Gordons University Campus building bearing Scott Skinners name is new and made of steel then? Esmeralda said.
Yes, said Dougal, that's about it I suppose.
Ok Dougle, said Esmeralda, can you tell me more about St Nicholas House?
Oh well, said Dougal, that also won prizes, in the 1960's though.
And is it being pulled down as we speak? Said Esmeralda
Erm, said Dougal ... its not painted green!