Wandsworth, Thamesfield
Con 45.8 (-10.2)
Lab 31.3 (+13.6)
Lib Dem 16.7 (-0.1)
Green 6.2 (-3.4)
Broxbourne, Cheshunt Central
Con 53.1 (-14.8 )
Lab 34.4 (+14.0)
UKIP 6.3 (+6.3)
Ind 4.4 (+4.4)
Lib Dem 1.7 (+1.7)
(via BritainVotes)
Difficult to think of many less promising wards in London [than Thamesfield] to target, tbh.
The targeting clearly worked - that's an excellent result for Labour.
Looked up the 2008 GLA results for Thamesfield to get a bit more context: C 50.8 Lab 18.8 Grn 11.9 LD 11.6; Boris 55.6 Ken 28.1.
Let's not forget that Labour were getting their lowest poll ratings in its modern history at that point. Now, they're at their highest point for about 10 years.