informal settlement 
noun
Another term for shackland.The City of Johannesburg is set to embark on a major drive to put up and repair lights on major roads and in streets of the suburbs, townships and informal settlements of the city....
- The result is that thousands of workers are forced to live in dismal housing conditions in compounds, shanty towns and informal settlements.
- A certain amount of tension exists between formal townships and adjacent informal settlements because the latter are seen to undermine the value of the former.