Here is a very useful site for those looking to find a local football team in the London area. It shows where local football teams play on a map, so people can find football clubs that are accessible to them - it is completely free. It also shows the teams on a map view, so that people can find teams easily in their London borough or council. The website also shows which league the team plays in, and it also shows the name of the pitches that the team play at.
For example, here you can find local football teams in the Islington area. Most teams play at the pitches near market road.
The aim is to get more people involved in their local community through sport, as sometimes it can be tricky to find a local football team.