We've seen this location before and also with the now-gone Pepipoo foru, It seems it was a controversial closure, because the road is shown closed on GSV in 2020, then the planter pots remain, but the signs are removed and still shown this way in GSV 2024, so the restriction was reimposed sometime after, but on a timed basis. GSV has no views later than 2024 so the current signs cannot be viewed. If you go this way often, you might care to take and post photos of them.
This particular PCN should never have been served, but such is the venality and rapacity of London councils, things like this are fairly common nowadays. I don't think there is any mileage in the signage being inadequate, as it is in plain sight as you approached it head-on. However, being based on a 25 seconds transgression, I think you have a good case for a de minimis appeal. First you have to submit representations to the council based on this, and then when inevitably rejected, (they want your money, all of it), you should register an appeal at London Tribunals on the same basis.
You will note that the council don't say the video has been observed by an operator. This PCN has been produced completely automatically and the money is rolling, no doubt, because >95% of people just cough-up when they get a PCN.
You really must stand your ground on this or join the Mugged Club !
