I enclose part of the Highway Code for the purposes of those who want to park somewhere second and have highlighted the relevant items!! (I know I passed my test first time 36 years ago, but the the rules are still the same)
242
You MUST NOT leave your vehicle or trailer in a dangerous position or where it causes any unnecessary obstruction of the road.
Laws RTA 1988, sect 22 & CUR reg 103
243
DO NOT stop or park
near a school entrance
anywhere you would prevent access for Emergency Services
at or near a bus or tram stop or taxi rank
on the approach to a level crossing/tramway crossing
opposite or within 10 metres (32 feet) of a junction, except in an authorised parking space
near the brow of a hill or hump bridge
opposite a traffic island or (if this would cause an obstruction) another parked vehicle
where you would force other traffic to enter a tram lane
where the kerb has been lowered to help wheelchair users and powered mobility vehicles
in front of an entrance to a property
on a bend
where you would obstruct cyclists’ use of cycle facilities except when forced to do so by stationary traffic.