The London Plan download section
3A.7 Large residential developments
Boroughs should encourage proposals for large residential developments in areas of high public transport accessibility, including the provision of suitable non-residential uses within such schemes. Boroughs should prepare planning frameworks for all large residential sites of 5 hectares or more, or that are capable of accommodating more than 500 dwellings.
The planning frameworks should be prepared in consultation with local communities and other key stakeholders (see Chapter 4A).