No need to complicate this. Single yellows in a CPZ are controlled by zone entry signs, unless they have their own timeplate.
Here there is one very near the line that is more than enough to mislead.
One case from a few years ago but I expect it's pretty much the same.
-------------
Case reference 2160040109
Appellant xxxxxx
Authority London Borough of Newham
VRM EY64MVS
PCN Details
PCN PN12696465
Contravention date 24 Sep 2015
Contravention time 20:44:00
Contravention location Tennyson Road
Penalty amount GBP 130.00
Contravention Parked in a restricted street
Referral date -
Decision Date 01 Mar 2016
Adjudicator Gerald Styles
Appeal decision Appeal allowed
Direction cancel the Penalty Charge Notice and the Notice to Owner.
Reasons I heard from the appellant when he attended on 1 March.
Although there are special arrangements in relation to the event days in the locality the appellant was entitled when parking to rely on the yellow plate posted probably some 5 yards away from where his car was at the time of ticketing on single yellow line.
I have looked closely at Google Streetview with him and studied his photographs and his case is a strong one. I have thought perhaps that the patrolling officer inadvertently missed seeing the sign which encouraged the appellant to park where recorded.
I have allowed the appeal on the basis that the appellant quite reasonably concluded that the yellow line where he was parked was governed by the nearby yellow plate which simply stated 7am-7pm. When ticketed it was after 7pm and although it was a match day the yellow signage as photographed by the appellant did notify parking was permissible when the appellant parked outside the white door of 2B.
It has always been the case that in regulated zones nearby yellow plates override the zone hours. These yellow plates may indicate greater or lesser restrictions than that the zone ones, effectively they take precedence.
For these reasons the Council evidence has not persuaded me any contravention occurred.
I have thus recorded the appeal as allowed.