Social divisions stoked by the housing crisis mean Britain faces a real threat of political unrest and extremism without urgent reform, the author of a new report on self-building has warned.

The need to diversify the housebuilding sector is critical if we are to avoid becoming “two nations”, said Richard Bacon.

The Tory MP was commissioned by Boris Johnson in April to develop a plan for a major scaling-up of self-commissioned new homes across all tenures, boosting capacity and overall housing supply.

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