article_snippet: But the London borough of Kensington and Chelsea became the first local authority in the country to introduce restrictions on the controversial subterranean developments.
article_snippet: Westminster City Council is to introduce a similar policy to limit the size of basement extensions by the end of this year.
article_snippet: We have a basement policy that is coming in very shortly which will restrict this type of development, as We recognise the disruption that residents in Westminster are having to live with.'
article_snippet: Planning permission was granted with conditions that the excavation work can be carried out only between 8am and 6pm Monday to Friday.
highlights_snippet: Westminster council is banning 'iceberg' developments at end of this year .