The previous Labour government brought in something called the Housing Market Renewal Pathfinder programme. In pursuance of this programme, local government compulsorily purchased streets of terraced housing and re-housed the occupants. This resulted in the streets around the stadium at Anfield being "tinned-up" i.e. gas and electricity cut off and the windows covered over with metal sheets.
The idea of the programme was that the houses were to be demolished and replaced by shiny new developments, but as a result of the recession, the economic drivers were not there, and those empty, deserted houses are still standing. Redevelopment is, however slowly happening and some new development has taken place including some housing, a college and a health centre.