Betiel Mehari is a single mother who became a housing activist to try to save her own home.

Betiel works in retail on a zero-hours contract. She lived on the Loughborough Park Estate in Brixton for 11 years, until her family lost their home when the estate was completely demolished by housing association Guinness Partnership in a £75m "regeneration" scheme. She was forced to leave Brixton, losing her much valued local community, with huge disruption to her family. ("That's what regeneration does," she says.) Rehoused in a smaller flat in Newington with no balcony, her two children (aged 11 and 10) are now commuting the lengthy distance from Newington to Brixton in order to maintain their educational stability and friends.

Furthermore, Guinness whacked up the rent in the family's new flat, from a "social rent" of £109 per week to a so-called "affordable rent" of £265 per week. Although Betiel had been a Guinness tenant for 11 years, Guinness claimed that demolishing her flat and rehousing her had created "a new tenancy".

Betiel says: "'Affordable' rent is a con. You'd assume it's based on wages, but it's not. It's set at 80% of market rents, not according to any measure of actual affordability. With two kids it requires an income of £35,000, which is higher than the national average. This measure puts us at the mercy of the housing market - it's absolute madness."