Factors which have to be taken into account when planning decisions are made which may override the development plan - for example emerging government policy discouraging out-of-town shopping centres and reliance on cars.

Statutory test of implementation - for example the digging of trenches or the laying of services.

The Mayor will have an extensive strategic planning role. In particular, he or she is charged with producing a spatial development strategy for the capital.

Often planning committees resolve that they are "minded to grant" planning permission subject to the completion of a planning agreement. Planning officers have delegated powers to issue planning permission when the agreement is finalised. A minded to grant resolution does not constitute a planning permission.

The extraction and treatment of minerals is development for planning purposes.

Schemes to be produced by the County Council in respect of any area for which there is a district council.

Development plan for minerals.

Development that includes all types of use such as residential, retail and employment which encourages sustainability.

Government policy guidance relating to minerals.