Free Traffic Legal Advice

Street view shows only the South end of Amhurst gardens is in a Controlled Parking Zone, but the Hounslow map shows that the rest of road is now also in a (different) parking zone.  So you should have passed a sign as you drove in highlighting the change in Zone.  Are you able to go back and have a look / take pictures?

There's nothing about a PPA on the map or in the latest notice of order, which refers to a CPZ - I can't find the actual order.

Resident permit parking is indicated along both sides of most of the road.

There are a number of small CPZs there or what they call CPZs - if they are CPZs there is no contravention as CPZs can't have unrestricted kerbs. 

We need to see zone signage in the area.

Look for CPZ signs - (I have posted the boundaries they have on their map above):




And/or permit parking area signs:

So it's a PPA. It's a bit strange having one starting part way on a road that also has a CPZ.

It looks to be well signed with entry signs on both sides and repeater signs.

The only thing I can see to question is the order establishing it as it doesn't appear on their order map.

They'll reject your informal reps anyway, so I'd simply stick with the facts and see what mess they get themselves into.

Possibly along these lines:

On **** I parked in Amhurst Gardens on an unmarked length of carriageway, as shown in your photos, which indicates that there are no parking restrictions imposed under a local order. I returned to my car to find a PCN alleging a contravention in respect of a parking place. I looked around and could see a parking place sign but this had no effect because the mandatory road markings to indicate the extent of the restriction were not present. Subsequent to these events, I explored the area further and found Controlled Parking Zone entrance signs, but as these do not relate to parking restrictions I therefore dismissed them.

I am therefore making representations on the grounds that the contravention did not occur.

If the authority reject these representations they must prove in detail by reference to the relevant regulations why parking on an unmarked length of carriageway could give rise to the alleged contravention.

No. Have you read your PCN, IMO the wording is as required i.e. 'within the period of 28/14 days beginning with the date on which the contravention occurred/PCN was served'.