I've asked the question here, and given my first answer here. My second answer is that many estate Christians in London have moved because its very hard to buy or rent a home on an estate in London.
Most of the youth I used to reach out to no longer live on our estate. Some have moved to more affordable areas, where they could rent/buy a home suitable for their growing family. Last year one of the blokes I grew up with moved to Ireland because he couldn't afford a home big enough for his family. Years ago, a couple in our church had a baby, and then found the only place they could afford was further out of London through a government new build home ownership scheme.
So our church can keep on making disciples, but we're going to have a challenge with keeping those disciples on the estate.
It would be great if there were more Christian philanthropists who help house Christians on estates to be salt and light. We might also need to get more creative with house sharing and budgeting etc.
pt.4 tomorrow ...