Can you park on a single yellow line?

What a single yellow line actually means

A single yellow line painted along the edge of the road means there are waiting restrictions in force during certain hours. It does not mean "no parking ever". The crucial detail is that a single yellow line is meaningless on its own — it always works together with a time plate, the small black-and-white sign on a nearby post that tells you which days and hours the restriction applies.

Outside those hours, the yellow line stops applying and you can park normally (subject to any other rule on the street). Inside those hours, you cannot wait — but you can still stop for a moment to load or drop someone off.

How to read the time plate

The plate is the part that matters. A typical plate reads something like "Mon–Sat 8:30am–6:30pm". That means:

• The restriction applies Monday to Saturday between 8:30am and 6:30pm.
• Outside those hours — evenings, and all day Sunday in this example — you can park on the line.

Plates vary street by street. Some run to 8:00pm or later, some include Sundays, and some have two separate windows in a day. The line never overrides the plate, so the only safe move is to read the actual plate next to where you are parked, not the one you remember from last week.

Loading, unloading and dropping off

Even during the controlled hours, a single yellow line on its own does not stop you loading or unloading goods, or letting passengers get in and out. You can pause for as long as the loading genuinely takes, provided you are actively doing it and not causing an obstruction.

That changes if there are loading restrictions. These are shown by short yellow dashes (kerb blips) painted on the kerb itself, with their own small plate. One kerb dash usually means loading is banned during certain hours; the plate spells out when. If you see kerb dashes, the right to load no longer applies during those times.

Blue Badge holders

Across most of the UK, a Blue Badge lets the holder park on single (and double) yellow lines for up to three hours, as long as there is no loading ban (no kerb dashes) and the vehicle is not causing an obstruction. The badge and the clock must be displayed. A handful of central London boroughs (Westminster, Kensington and Chelsea, the City of London, and part of Camden) run their own concessions and do not accept the Blue Badge on yellow lines, so check the local scheme before relying on it.

Common mistakes that get you a ticket

• Assuming the hours. "It's always fine after six" is how people get PCNs on the one street that runs to 8:00pm.
• Missing the kerb dashes. Loading feels allowed on a single yellow — until the kerb marks say otherwise.
• Parking on a Sunday without checking. More streets now include Sundays than used to.
• Trusting a faded or missing plate. If the plate is unclear, treat the restriction as live and find a clearer spot.

Let the app read it for you

The time plate is where most of the confusion lives — small print, fading paint, two restrictions stacked on one post. Kerbnow reads the sign for you, then weighs the current day and time (including Sundays and bank holidays) and tells you whether you can park here right now, with the rule it used shown alongside.

Frequently asked questions

This guide is general information about UK parking rules, not legal advice. Kerbnow is a decoding aid — always check the answer against the sign in front of you.