The number of tenancies signed by a single tenant has fallen, according to the latest HomeLet Rental Index.
Last year, tenants living on their own accounted for just 33% of new tenancies, down from 67% in 2008.
The number of new tenancies signed by two tenants jumped from 28% to 52% in the same period.
According to HomeLet's figures, the number of new tenancies signed by three or more tenants increased from 5% to 15% between 2008 and 2015.
Tenants in five locations now pay more than £500 a month for a room, say figures from flatsharing website
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