Davina Tanner (above) has built up a portfolio of around 75 properties in East Anglia that she lets to immigrants. She now operates these professionally and has also set up a lettings agency to run properties on behalf of other landlords.

About 95 per cent of her properties are rented to migrant workers predominantly from Poland, Hungary, Lithuania, Estonia and Latvia, who come to the area to work on the nearby farmland. Tanner says business has picked up over the last four years but a bigger change has been the mindset of her tenants.