Code 50 appeal guide

Hillingdon / Prohibited turns

Hillingdon Code 50 PCN Appeal (2026)

Received a Hillingdon PCN for a prohibited left turn, right turn or U-turn? Check the signs and CCTV, submit your formal representation to Hillingdon, and take a rejected appeal to London Tribunals.

Check Your PCN
Illustration of a driver approaching a junction with a no-right-turn sign on the left pavement
Illustrative Code 50R scenario. The applicable sign differs for a left turn or U-turn.

1. What does Hillingdon Code 50 mean?

Hillingdon alleges that your vehicle performed a prohibited turn. Code 50L means a banned left turn, 50R a banned right turn and 50U a banned U-turn. Check the full allegation and junction on the notice: the question is whether the movement you made was the movement the restriction prohibited.

Hillingdon lists Code 50, performing a prohibited turn, among the moving-traffic contraventions it enforces using CCTV. Camera-issued PCNs are sent by post and include a photograph of the alleged contravention.

Contravention
Code 50: performing a prohibited turn
Variants
50L left turn; 50R right turn; 50U U-turn
Enforcing authority
London Borough of Hillingdon
Evidence
CCTV footage and signs on your approach
Challenge deadline
Within 28 days of service of the PCN
50% payment discount
Pay within 14 days beginning with the date of the notice. Check the discount terms before challenging.
Appeal route
Hillingdon representations, then London Tribunals if a Notice of Rejection is issued
[1][2]

2. What must Hillingdon prove?

The legal restriction, signing and evidence must match your particular turn. Hillingdon needs to establish:

  • An enforceable restriction covering that junction, approach, direction and time, with the relevant traffic-order provision where applicable.
  • Signs that adequately communicated the ban to a driver approaching as you did.
  • CCTV or other evidence establishing that your vehicle made the prohibited movement.
  • A properly issued PCN and consideration of your representations under the London Local Authorities and Transport for London Act 2003.
Diagram 613: no left turn
50L: no left turn. Diagram 613; Schedule 3, Part 2, item 8.
Diagram 612: no right turn
50R: no right turn. Diagram 612; Schedule 3, Part 2, item 7.
Diagram 614: no U-turns
50U: no U-turns. Diagram 614; Schedule 3, Part 2, item 6.
Visible sign
Illustrative approach with the no-right-turn sign unobstructed.
Obscured sign
The same illustrative junction with foliage covering part of the no-right-turn sign.

Same approach, different visibility. These illustrations explain the issue; your appeal needs evidence from the actual junction.

[1][5]

3. Grounds to challenge a Hillingdon prohibited-turn PCN

Explain the specific defect and connect it to an available statutory ground. For disputed manoeuvres or inadequate signs, this is usually that the alleged contravention did not occur.

  • The manoeuvre is not proved: the recording shows a different movement or one outside the prohibition.
  • The signs were inadequate for your approach: supply photographs showing their position, angle or obstruction before the turn.
  • The traffic order does not cover the movement: compare the actual direction travelled with the wording of the restriction.
  • An exception applies: identify the provision and evidence that your vehicle or journey qualified.
  • Liability or the notice is defective: explain the ownership, hire or statutory-notice issue. Do not copy parking Reg 9/10 arguments into a London moving-traffic appeal.
[1][5]

4. How to make a formal representation to Hillingdon

Use Hillingdon's APCOA portal. Enter your vehicle registration and the PCN reference, which begins HN followed by eight characters. You can view the contravention details and photographs without paying. Select the challenge or representation option: payment closes the PCN to challenge.

The 50% discount is for early payment, not a discount awarded for appealing. For a London Code 50 PCN, the initial reduced-payment period is 14 days beginning with the date of the notice. This is different from the 28-day representation period, which runs from service of the PCN.

Check the discount terms on your Code 50 PCN and any written re-offer from Hillingdon. Keep proof of when the council received your representation. Taking the case to London Tribunals does not automatically preserve the discount; if the appeal is refused, the full penalty is normally payable.

  • Postal alternative: Hillingdon Council, Parking Services, PO Box 5824, Dingwall, IV15 0BH. Allow time for delivery and retain proof of posting; check the address on your notice.
  1. Review the photographs and request the CCTV if the available evidence does not show the full turn.
  2. State the PCN reference, your contact details, the alleged turn and your grounds. Include relevant footage timestamps, approach photographs or order provisions.
  3. Submit within 28 days beginning with service of the PCN. Save the complete representation, attachments and confirmation.
View evidence or submit to Hillingdon[3][4][5]

5. How long does Hillingdon have to respond?

London Tribunals says the authority "should normally respond to representations within 3 months".

[5][4]

6. If Hillingdon rejects your representation

The Notice of Rejection should explain the decision and how to appeal. Check that it addresses your actual argument about the turn, signs or restriction. Use its verification details to register an appeal with London Tribunals within 28 days beginning with service of the rejection.

London Tribunals is independent of Hillingdon. There is no appeal fee, although costs can exceptionally be awarded for unreasonable conduct. If you lose, the penalty remains payable. Upload your representation, rejection and evidence, then address any new points in Hillingdon's tribunal evidence pack.

London Tribunals appeal instructions[6][7]

7. Similar Hillingdon tribunal cases

Decisions
28
Allowed
12
Refused
16

12 of 28 Hillingdon prohibited-turn appeals in our 2025 tribunal records were allowed (42.9%).

Hillingdon prohibited-turn decisions in our 2025 London Tribunals archive, counted by unique case reference and decision date. These are tribunal outcomes, not all Hillingdon PCNs, unique motorists or a Parking Mate success rate.

These three Hillingdon decisions concern Watford Road and Elgood Avenue. They show why the route taken and the evidence presented matter: a successful appeal at a junction does not cancel every PCN issued there.

Appeal allowed11 November 2025

Elgood Avenue: was the sign visible from Frithwood?

Case 2250328527 / Hillingdon / Teresa Brennan

The adjudicator found that the vehicle turned right onto Watford Road and then left into Elgood Avenue. However, the council had not sufficiently established that a driver crossing from Frithwood could see the no-left-turn sign before turning. The appeal succeeded on visibility, not on an absence of a turn.

I allow this appeal because I am not satisfied that the signage was sufficiently clear
Find case 2250328527 in the official register
Appeal allowed5 November 2025

Watford Road: did the order cover the turn into Elgood Avenue?

Case 2250368678 / Hillingdon / Edward Houghton

The order prohibited a left turn by vehicles proceeding south-west in Watford Road. On this recording, the adjudicator found the vehicle crossed at an angle without travelling south-west along the road. The recorded manoeuvre did not contravene the order as worded.

As I am not satisfied the prohibition in the TMO was contravened the Appeal is allowed.
Find case 2250368678 in the official register
Appeal refused24 April 2025

Watford Road / Elgood Avenue: signs found adequate

Case 2250043276 / Hillingdon / Michael Burke

After considering the council's photographs, the driver's photographs and Street View, the adjudicator found the signs adequate. He also found that the diagonal crossing involved a right turn followed by the prohibited left turn. This illustrates why the actual footage and signs must be examined rather than relying on another result alone.

In any event, I am satisfied the signage of restrictions was substantially compliant, clear and adequate.
Find case 2250043276 in the official register

8. Full Code 50 PCN Appeal Guide

See the prohibited-turn signs, placement and lighting requirements, traffic-order checks, exemptions and detailed legal analysis behind a Code 50 appeal.

Full Code 50 PCN Appeal Guide
No right turn sign, diagram 612

Sources and references

  1. Code 50: legislation and signage references
  2. Hillingdon: CCTV enforcement of Code 50 prohibited turns
  3. Hillingdon: evidence and representation portal
  4. Hillingdon: challenge instructions and postal address
  5. London Tribunals: moving-traffic enforcement process
  6. London Tribunals: preparing your appeal
  7. London Tribunals: questions about appeals and costs

About Parking Mate UK

We assess real London Tribunals decisions to identify strong grounds for challenging Code 50 PCNs: signs hidden from the driver's approach, restrictions that do not cover the manoeuvre, and camera evidence that does not establish the alleged turn.

Our 2025 London Tribunals prohibited-turn analysis covers 1,535 decisions: 443 appeals allowed and 1,092 refused. Those findings help us focus your representation on the signs, traffic order and evidence that matter to your particular left turn, right turn or U-turn.

Parking Mate UK provides an automated platform to challenge your penalty charge. Simply send us your Hillingdon Code 50 PCN for a free assessment. We prepare and submit your formal representation to Hillingdon and handle your London Tribunals appeal, so you do not have to work through the process alone.

Explore our appeal platform
Illustration of a Parking Mate AI agent organising appeal documents, a calendar and deadlines
By Parking Mate UK