Free Traffic Legal Advice

It's their usual Fob-Off reply in response to informal representations. As the street isn't restricted, they must first create a Temporary Traffic Regulation Order, (TTRO), then sign it appropriately.  Like any regular TRO, the signage requirements are within the LATOR 2006 regulations, in particular Regulation 18

https://www.legislation.gov.uk/uksi/1996/2489/contents

Other thing to look at is, have they actually set up a TTRO ?

The question now is, are you prepared to take them all the way and risk the full PCN penalty at London Tribunals. This would involve waiting for the Notice to Owner, submitting reps to that, then, if rejected, registering an appeal at London Tribunals.
Are you the registered owner on the V5C and is the address correct and up-to-date ? The NtO is sent to the V5C address

Para. 2 of the so-called order states..

'..no vehicle shall enter, proceed in or wait .....'

So, where was the 'no entry' sign(s)? (IMO, it should be enter and/or proceed in...because the way it's worded does not make entering an optional restriction).

As the 'order' doesn't create a loading prohibition, then the sign purports to go beyond the powers in the order.

If loading was similarly prohibited, then why was this not included in the contravention?

OP, I'd submit a FoI request now to the council:

As regards the '...........order' please advise where and how this was signed during the period 11-14 Oct. 2024 in Wellfield Ave. N10. Given that the enforcement of the order is subject to the number, siting and wording of 'traffic signs', then the council would have made a point of ensuring that(and recording) the specific locations and methods e.g. on lamppost 10 or on tree o/s no. 27 etc. were consistent with their regulatory duty.

I also require a copy of the council decision which made the order.

This is the picture they will rely on concerning location of signage which is fairly conspicuous not far behind car.

Yes, but we need to know when the OP parked the car, and when the sign was put up. Also was the signage sufficient to convey the restriction. Their letter rejecting the informal challenge says nothing about when the sign was erected.

Yes, the OP hasn't said when the car was parked - which was when?

That sign's about tree maintenance...or is it? The standard for signing is not for the council to shove up a sign which a driver is NOT expecting to see somewhere in what they think is the vicinity and then blame the motorist.

IMO, the entrance to the road must carry a warning that restrictions are in place, apart from anything else because 'entry' is prohibited!

Hence the FoI request.

OP, I probably should have explained what FoI means: Freedom of Information.

It is not correspondence with parking services and unfortunately you appear to have written to someone in parking.

I would respond to the council - look up their FoI ..

https://www.haringey.gov.uk/council-elections/data-finance/information-data-requests/freedom-information-foi

Dear Sir,
I wrote to the council on ** , see the attached letter ***.

I expected this to be treated as a Freedom of Information request, but instead your Sheffield-based Parking Services department has treated it as part of the formal enforcement process and responded - see attached.

I should be grateful if the council would now treat my letter as a FoI request and respond accordingly.