Just look at the damage the builders of this little development have done. The pavement and the lampposts have gone and the road is now leaning down into the hole. Notice that, not content with causing that much damage, they have further undercut the road.
A good heavy rainstorm could see the whole lot sliding into the hole they've dug.
The water at the bottom is from the underground stream that runs under the other side of the estate. It is the reason why the houses on that side are all underpinned. Goodness knows what they will do about the water. I know they intend to build a communal pool but not there!
These are the artist's impression of what the development will look like. It might be very different when it is finished!