ACTIVISTS and trade unionists will lock horns with the super rich today over the housing crisis while developers schmoozed politicians at the world’s largest property fair.

As protesters showed up in Kensington to block London Mayor Boris Johnson from entering the International Fair for Real Estate Professionals — known as Mipim — the number of councils pulling out of the event grew.

The capital’s boroughs of Enfield, Tower Hamlets, Islington, Lewisham and Hammersmith & Fulham are reportedly not sending representatives to the fair after continued pressure from local communities.