London leaver: 'I was spending £20k a year on rent with no real security'

Costi Dena at her new home - (Handout)

When Costi Dena moved to London in 2010 she wanted to be in the thick of things and rented homes first in Holland Park and then in Chelsea.

But although she had some fancy addresses, and could walk to work, the reality of renting in Prime Central London was less glamorous. Her final home in the capital was a small, dated, one-bedroom flat.