it is an enormous growth sector in the UK. Half of the new developments at Wembley follow this model, Blackhorse lane in Walthamstow, wood wharf in Canary Wharf, lots of woolwich, the new developments in Wandsworth where Homebase and b&q used to be. Within the next 5 years this will be a significant part of the London rental market.
eta: this is not necessarily better for renters. It will be a faceless management company who donโt give a tit that will deal with any issues. There are already blocks where tenants are looking to sue institutional landlords over poorly built properties