Here's what my local council (Ealing) say about charging points on their website:
On-street EV charge points in your neighbourhood
There is very high demand for more EV charge points and unfortunately it is not possible to install them in every location due to physical and electrical safety constraints and limited budgets.
Neighbourhoods that are more than 10 minutes walk (800 metres or ½ mile) from
existing EV charge points are currently being prioritised for new installations.
Visit Source London to view their new EV charge point locations.
Demand is looked at collectively and used to assess provision for each neighbourhood area and there is no guarantee that EV charge points can be installed in any particular street. Unfortunately owing to delivery constraints we are not taking any additional requests currently.