A council property purchased for below market price due to the current tenants (or prospective buyers) having inhabited said property for a certain length of time, usually a minimum of 5 years. The level of discount is in correllation with the duration of tenancy and also upon what local council happens to be the landlord.
"Oh my gosh
, how you afford such slick yard bruv?"
"We been here for time init, council hooked us with one dem buyrites!"