Perth and Carlisle are pretty much one and the same original Tite design, but on a zero to ten scale of decreptitude Carlisle is probably a 4 versus Perth's 9.8. It's got it all.
One of the reasons that Perth is so grim is that it grew badly out of the original main building that now forms the island between P4 and P7. So the overall roof I suspect has always been horrible, grandeur isn't the word for it, and ruins the Tite frontage on P4. Then BR went and built that appalling travel centre building between P2 and P3, presumably in the 1960s. Certainly the buffet had an authentic 60s ambience to it, and I don't mean that in a good way, until a couple of years ago. We also need to give a special mention to the leaky canopies covering the car parking on the old north bay platforms by P7. And then there's the hideous footbridge housing the lifts blotting the horizon to the south, a new eyesore of the past few years. At the time of installation nobody bothered to remove the old lifts and bridge rotting away between P3 and P4 of course.
Amazingly there's a plaque by P3 saying that it won an Ian Allan restoration award in the 1980s. He must've forgotten to bring his specs when he was doing the judging. Or maybe they did it in the winter and so little light was coming in through the filthy overall roof that they couldn't see anything.
The whole place is a dump on a majestic scale, made special by the fact that nearly every part of it - offices, workshops, waiting rooms - are still fully functioning and the it's probably busier with trains now than it was at any time in its history.
So we have a hands down winner. If you've never been, you must go, and preferably at around 8am on a heavily overcast winter's morning. There's nowhere more dingy anywhere else in the world.