In his Bsky thread,
@AlexBozikovic highlights a couple of things.
1) That several washrooms with good architectural features are proposed to be demolished, and he, understandably thinks that's awful and they should be restored instead.
2) That there is an intent to bundle all of the washroom work into one mega contract which will limit the bidders to some of the large corporate firms, and its too big a job for the smaller ones.
He's right on that last point, moreover, too few bidders tends to erode value-for-money as well. So you can have lesser design for more $$
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It would make sense to be to do a bulk, large bid for the pre-fab washrooms, since you want standardized spare parts etc.
But the free standing buildings should be broken out into smaller contracts, with high profile sites, going on their own so you can attract the best firms.
The better architectural washrooms of the past should be retained wherever feasible; and if that isn't due to alterations required for year-round use or modern building code, then they should be recreated as closely as possible.