I'll provide a diagram of course. I know the rules.
Small close of a handful of houses with parking/garages for the houses on the main road.
Two sets of 3 houses on the close, all with driveways.
The end house of the first set has a shared driveway with the middle house. At the end of the end house there is a shared access path to the rear of the houses where people keep their bins and access their gardens.
The end house has widened their driveway removing a big hedge, a tree, and the shared access path and have created one wide parking space that is around double the original space. Two houses now can't access the rest of their properties from the shared access path because there's cars parked over it. This also means that the new driveway is flush with the first house of the next set of three and that house's driveway gets used for access.
Should the house widening the drive have sought planning permission and can they just remove the shared access path?
They didn't inform the neighbours of their plans until it was in progress and feathers are ruffled.
Diagram coming...