The first official shovel hitting the earth happened last week out at Nine Elms to mark the official start to the Northern Line Extension, even though preparatory work had been going on for weeks.
We found ourselves walking through Kennington though the other day, exactly above where the Kennington loop is, and found a site there where work has also started, along with a nice noticeboard explaining to local residents what is going on.
Your new Northern Line Extension should open in 2019 …
NLE Kennington Park Site