In 1997 outline planning permission was granted for a business park on a 53-hectacre site. The permission covered mixed-use development for business and commerce, comprising classes A2, B1, B2 and B8, together with recreational use associated with a particular recreation ground. No environmental impact assessment (EIA) was carried out in relation to the proposed development.

In 2002 outline planning permission was granted for leisure development on 3.54 hectacres of the 53-hectacre site. The council had previously decided that the application for outline planning permission did not need to be accompanied by an EIA.

In 2004 an application for reserved matters approval was submitted by the developer. Again the council decided that no EIA was required and approved the reserved matters application.

The claimant challenged the council’s decision not to require an EIA.

The issue was whether or not the council had erred in law in its final decision not to require an EIA, by taking into account (i) the fact that in 1997 outline planning permission had originally been granted for a business park and (ii) the fact that no EIA had been considered necessary for the leisure outline planning permission in 2002.

Consideration (i) was said to be unlawful because no determination was made as to whether the business park development was itself likely to have significant environmental effects. Consideration (ii) was said to be unlawful because the decision not to require an EIA in relation to the leisure outline planning permission was itself unlawful.