Is parking on a double yellow line always illegal?

In most cases, yes — parking on double yellow lines is illegal. Double yellow lines indicate no waiting at any time, whether the restriction is during the day or night. However, there are a few specific exceptions depending on the circumstances and signage nearby.

When Parking on Double Yellow Lines Is Illegal
🚫 At any time — unless signs show specific time restrictions
🚷 When stopping causes an obstruction or safety hazard (e.g. near junctions or crossings)
🚓 If you leave the vehicle unattended, even for a short period
🏗️ When parking on pavements or verges next to double yellow lines (the restriction still applies)

When It May Be Allowed
Blue Badge holders can park on double yellow lines for up to 3 hours, as long as there’s no loading ban and it’s safe to do so
📦 Loading or unloading may be permitted where no kerb blips or signs indicate restrictions
⏱️ Taxis or emergency vehicles may stop temporarily while in service

Key Points to Remember
⚠️ Always check nearby signs or kerb markings before stopping
📸 Civil Enforcement Officers can issue Penalty Charge Notices (PCNs) for illegal parking
💡 If unsure, park elsewhere — “waiting” means staying stationary, even with the engine running