Find parking in Marylebone

Marylebone is a district in London’s West End, towards its northern edge. In the 18th century, this area was laid out for fashionable housing, and it still carries a certain cachet, dirty and noisy though it may appear. The area is liberally supplied with red markings indicating that main roads are part of one or another of London’s Red Routes, designed to keep traffic moving, by preventing non-public transport vehicles from stopping. The presence of bus lanes further reduces opportunities for on-street parking spaces. There is constant political pressure to ban private vehicles from swathes of London, including this area, and although such a ban has not yet come to pass, there must always be a concern that parking which is possible today may not be possible tomorrow. All of this contributes to the difficulty in answering the question; where to park around Marylebone?