Hi mate, your tree looks very much like Pinus pinea- Stone pine, ,,it looks very sick if not bordering on dead, keep out of direct sun and water sparingly, good luck
I'd have to agree with Joel on this one. Picea glauca 'Albertiana Conica' or Dwalf Alberta spuce. Bunnings sells them as Xmas trees, all over Australia but they only do well in the cooler areas. alittle bit of humidity and they die.