The Natural Philosopher wrote:

Listed building status might do you some good (in that inappropriate
building regs don't have to be followed)

I have never heard that..in fact in one case I have heard a BCO and a
listings officer each arguing with the other about a staircase.

Me too, in my own home. BCO wanted firecheck doors, LBO wanted to
preserve the building. Argment never resolved and I just gave up any
intent to do the work, or even to do repairs.