Transport for London / Code 21
TfL Code 21 PCN Appeal: Suspended Bay (2026)
Received a TfL PCN for a suspended red-route bay? Check the suspension dates, the spaces covered and the warning sign visible when you parked. Parking Mate UK checks the suspension and your evidence, then prepares and submits your challenge.
Start with a free TfL Code 21 assessment. Our £9.99 Automated Penalty Charge Appeal Service prepares and submits your challenge and handles your tribunal appeal.
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1. What does TfL Code 21 mean?
TfL Code 21 alleges that your vehicle was parked in a suspended bay, space or part of a parking place. A suspension temporarily withdraws the bay's normal permission: the exact spaces, dates and times on the suspension notice matter.
- Contravention
- Code 21 alleges parking in a suspended bay, space or part of a parking place
- Category
- On-Street Parking PCNs
- Issuing authority
- Transport for London
- Formal representation deadline
- 28 days beginning with service of the Notice to Owner or postal parking PCN.
- Appeal route
- TfL, then London Tribunals after a formal Notice of Rejection.
- Penalty and discount
- £160, reduced by 50% to £80 during the applicable discount period.
- Appealing during the discount
- TfL pauses the discount period when it receives your representation within that period. If rejected, the remaining discount period resumes from the point it was paused.
2. What must TfL establish?
Match the temporary suspension notice to the bay and the vehicle's position. Read the full location description, dates and hours, including any amendment. Photograph the warning notice alongside the permanent red-route bay sign.

- The suspension must have a lawful basis under the applicable parking order or other power and cover the space the vehicle occupied.
- Use the suspension dates, hours and extent actually in force, including any amendment or cancellation, rather than an earlier booking alone.
- Temporary signing must adequately convey which spaces are suspended and when. Compare the sign-erection record with the vehicle's arrival where notice is disputed.
- Any permission must expressly cover the suspended space, vehicle and activity. An ordinary permit, payment or Blue Badge does not generally override the suspension.
3. Grounds and exemptions for a TfL Code 21 appeal
An ordinary parking permission or Blue Badge does not override a suspension. Check any express authorisation and whether it covered this vehicle, space and period.
- Your vehicle was outside the suspended spaces or the suspension was not operating at the PCN time.
- The temporary notice did not adequately identify the affected spaces or was not in place when relevant. Support this with dated photographs and the sign-erection record.
- TfL had cancelled or amended the suspension, or gave specific permission covering your vehicle and activity.
- If ownership, hire liability, payment or the amount demanded is disputed, explain the applicable statutory ground and attach the records supporting it.
4. How to challenge your PCN with TfL
For an on-street parking ticket, send TfL an initial challenge. Formal representations are made within 28 days beginning with service of the Notice to Owner, or directly against a postal parking PCN.
The 50% discount normally runs for 14 days from service, or 21 days for an approved-device postal parking PCN. TfL pauses the discount period when it receives your representation within that period. If rejected, the remaining discount period resumes from the point it was paused.
- Open TfL's PCN service below using your PCN number and vehicle registration.
- Explain the Code 21 ground you rely on. Include evidence of the suspension's extent, warning signs and the time your vehicle arrived.
- Submit in the name of the person or organisation on the notice, including written authorisation where a representative acts for them.
- For a postal representation, use Red routes, PO Box 335, Darlington DL1 9PU. Keep a copy and allow time for delivery.
- Save your completed submission, attachments and dated acknowledgement.
5. How long does TfL have to respond?
TfL must serve its decision within 56 days beginning with receipt of qualifying formal parking representations. If it does not, those representations are deemed accepted. This period applies to formal representations, not the initial informal challenge.
[9]6. If TfL rejects your representation
Following a formal rejection, you have 28 days beginning with service to pay or register an appeal with London Tribunals. Use the appeal instructions and verification details supplied with TfL's decision.
An initial informal parking rejection is a different stage: formal representations can be made against the Notice to Owner if one follows.
[9]7. Taking your TfL appeal to London Tribunals
Register with the Environment and Traffic Adjudicators at London Tribunals, the independent tribunal for this PCN. Set out your Code 21 grounds and include the notice, your representation and the supporting evidence.
If TfL contests the appeal, review its evidence pack against the suspension's extent, warning signs and the time your vehicle arrived. Respond to the tribunal's directions by the dates it gives you.
There is no fee to register an appeal. If refused, the full penalty is normally payable; the earlier discount does not automatically continue.
[9][5]Other TfL notices and appeal routes
This contravention uses the Environment and Traffic Adjudicators route. TfL's ULEZ, LEZ, Congestion Charge and tunnel charging penalties use the separate Road User Charging Adjudicators route.
[10]Tribunal examples relevant to Code 21
These London Tribunals decisions illustrate issues relevant to Code 21. They involve the authorities named below, not necessarily TfL. Use the reasoning that matches your evidence; these are not TfL-specific outcomes.
An earlier suspension photograph did not prove the notice remained displayed
Case 2240534952 / 2025-01-16 / Adjudicator Carl Teper
Carl Teper accepted the driver's evidence that the suspension notice was absent when the vehicle was parked. An earlier installation photograph did not resolve that specific dispute.
Read the case commentary“I find the Appellant's evidence to be credible.”
Carl Teper, case 2240534952
An order and maps did not prove the alleged parking event
Case 2250022866 / 2025-05-01 / Adjudicator Belinda Pearce
Belinda Pearce allowed the appeal because the authority had not supplied evidence substantiating the alleged contravention. The parking order and plans did not establish what the vehicle was doing at the relevant time.
Read the case commentary“In the absence of evidence to substantiate the assertion I can find no contravention proved.”
Belinda Pearce, case 2250022866
2025 TfL tribunal results: Suspended bays and spaces
40 of 69 recorded cases were allowed (58.0%).
| Recorded outcome | Cases |
|---|---|
| Allowed | 40 |
| Refused | 29 |
| Total | 69 |
Full Code 21 PCN Appeal Guide
Read the detailed legislation, signage requirements, exemptions and case analysis for this contravention.
Read the full Code 21 PCN Appeal GuideSources and references
- PATROL: Contravention codes and suffixes
Contravention codes and suffixes
- Department for Transport: On-street parking control signs and road markings
On-street parking control signs and road markings
- Department for Transport: Statutory guidance on civil parking enforcement in England
Statutory guidance on civil parking enforcement in England
- London Tribunals: grounds of appeal for parking
Nine parking grounds. Read with SI 2022/576 regulation 5 for the hire, traffic-order, postal-service and already-paid conditions.
- London Tribunals: preparing your appeal
Registering an appeal, verification details and supporting evidence.
- TfL: challenge a Penalty Charge Notice
Online and postal representations, authority to act and the discount-pause policy.
- TfL: red routes and penalty charges
TfL's road network and the current traffic-enforcement penalty.
- TfL: rules of red routes
Parking, loading, bus lanes, cycle lanes, yellow boxes and prohibited turns on TfL roads.
- London Tribunals: parking PCN enforcement process
Postal and on-street PCNs, formal representations, discount periods and the 56-day decision period.
- London Tribunals: registers of appeals
Separate ETA and RUCA appeal registers.
About Parking Mate UK
For a TfL Code 21 PCN, we focus on the suspension's extent, warning signs and the time your vehicle arrived. Our assessment combines your notice and evidence with relevant tribunal decisions.
Our 2025 TfL analysis of suspended bays and spaces covers 69 cases: 40 allowed and 29 refused. The results section explains the allegation group covered.
Parking Mate UK prepares and submits your challenge to TfL, tracks the response and handles your London Tribunals appeal. Send us your PCN for a free assessment and continue online or on WhatsApp.
Check Your PCN