Candidates who don't live in the Constituency

If you stand in the London Borough elections as a candidate for a council seat, you have to live in the ward in which you stand. Why then do you not have to live in the constituency you hope to represent when standing in the London Assembly elections? It is, after all, also a local government election.

In a rerun of the Bromley & Chislehurst Constituency parliamentary by-election in 2006, neither the Conservative nor the Labour candidate for the Bexley and Bromley constituency live in the area, living instead in Lewisham and Shoreditch respectively. Why should anyone vote for a candidate who does not experience first-hand the concerns of the local residents?