Like most things in the UK, near enough all traffic movement (Motor, Pedestrian, etc), is kept to the left, but you will find in some cases this is not followed.
EG when the layout of a supermarket gives you no alternative but to reverse this, like Morrisons in Bulwell, Nottingham, as it's been built back to front (Main entrance is on the right of the store, not the more commonly found left), compared to most of their sites, and is also backed up by their staff when I asked them, and one said all stores follow a certain layout, but this one site has to do the plans in reverse near enough.