Cannabis farms being 'priced out'

About half the cannabis consumed in Britain is grown in London
London's housing market is slowing the growth of new cannabis factories in the city, according to a new report.
The city's escalating house prices are hitting the profit margins of gangs who operate such premises, the report from the Metropolitan Police Authority says.

Between 700 or 800 properties in London are equipped with hydroponic systems and lighting to cultivate large amounts of the Class C drug, it claims.

They are often run by Vietnamese gangs who rent or buy houses, police suspect.

The practice has become increasingly common across the country in recent years, and more than half the cannabis consumed in Britain is now believed to be grown in London.