A Lower-end Street in London

Its always raining in London. rarely does it ever stop. As such, the place is designed to handle it. By that, I mean it just moves it to a lower level with grates. This is a lower section, where its probably illegal to live. The police don't care. Its not their problem to get the people out of there. The walkways are the only things that could be said to be in good condition, everything else is just kinda held together with a hope and a dream. This specific street is slow and hardly ever sees people. Especially with a lower level place.