Complaints were raised about an area in Britannia Street, Aylesbury, where it appears there is a cobbled section for parking, with double yellow lines between the cobbles and the road.
There are faded double yellows by the pavement and a no loading sign, but these have been missed by some people.
One sign is missing from the site but the council says this and the faded markings do not invalidate restrictions.
The situation was highlighted on BBC’s Watchdog programme.
Brian Bell, who successfully appealed against a parking ticket he received, told the programme: “It was strange because the yellow lines were about six foot away from the curb I’d never seen that before.
“It made an obvious lay-by. I just thought it was a suitable place out of the way of everybody else and put my car behind the one that was already there.”
Mr Bell’s initial appeal against the ticket was rejected by the council, but the Traffic Penalty Tribunal ruled in his favour, saying the area was not correctly marked.
The council said it is difficult to maintain the markings on the cobbles ‘due to the nature of the surface and it is not a requirement to do so in this instance’. The missing sign is due to be replaced as part of ongoing maintenance.
The council said: “It is not practicable for all signs and lines to be constantly reviewed and maintained and indeed the public need to be confident that maintenance is not being targeted simply to ensure that we can issue Penalty Charge Notices.
“The county council works with its parking enforcement contractor to continuously review the state of the signs and lines.
“However the very nature of the highway network is such that there is a constant need to maintain the condition of both the signing and the lining which deteriorates over time.
“It is important that the public understand that all waiting restrictions apply over the whole highway extent and in the majority of cases this includes the footways and verges behind the double yellow lines.”