Blewett: environmental statements are not a test of perfection
R (Blewett) v Derbyshire County Council [2003] EWHC 2775 (Admin) is frequently cited on the adequacy of an environmental statement. Its practical message is that environmental assessment should be read realistically, not subjected to an impossible standard of perfection.
There is an important distinction in the outcome: the EIA ground failed, but the planning permission was quashed on a separate waste-policy ground.
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- Neutral citation
- [2003] EWHC 2775 (Admin)
- Court
- High Court, Administrative Court
- Judgment date
- 7th November 2003
- Judge
- Sullivan J
- Case number
- CO/1902/2002
The Glapwell landfill challenge
The proceedings concerned permission for a landfill development at Glapwell. The claimant challenged both the environmental assessment and the way the council had considered the waste-policy framework.
Complaints about the environmental statement involved the sufficiency of the information supplied and the treatment of environmental effects. The court considered the statement within the assessment and consultation process, rather than treating each criticism as proof that no lawful assessment had occurred.
Adequacy involves judgment
Deciding whether environmental information is sufficient requires evaluation. A statement is not necessarily defective in law merely because more information could have been provided or a different specialist would have approached an issue differently.
The court’s role is to examine legal compliance and the rationality of the authority’s judgment, not to replace that judgment with its own assessment of the development’s environmental merits.
That is not a licence to omit a required assessment or conceal important effects. The statutory process must still supply the information and opportunity for participation which the legislation requires. Read Berkeley for the distinction between a lawful assessment and an attempt to assemble an equivalent exercise after the event.
Why the permission was still quashed
The claimant succeeded on the separate issue of the best practicable environmental option, or BPEO, under the waste-policy framework then in force.
It would therefore be inaccurate to describe Blewett as a case in which every challenge failed simply because its most familiar EIA passage favoured the council.
The developer appealed. In Derbyshire Waste Limited v Blewett [2004] EWCA Civ 1508, the Court of Appeal dismissed the appeal and the quashing stood.
However, the Court of Appeal did not endorse every part of the High Court’s waste-policy reasoning. In particular, it rejected treating BPEO compliance as an invariably overriding precondition to permission, while finding the council’s actual consideration deficient. The EIA ground was not the subject of that appeal.
Use the principle with the relevant legislation
Blewett is useful when distinguishing a genuine omission from a disagreement about the detail or quality of environmental information. It should not be quoted as an answer to every EIA complaint.
The regulations and waste-policy terminology in the litigation are historical. For the content and parameters of an outline assessment, see Rochdale ex parte Milne. The applicable legislation and later authorities still need to be identified for the particular project.
Read the Blewett judgment
The complete High Court transcript is available to Gold Members. The later appellate judgment is linked above so that the litigation history is clear.
Blewett Case Law Page Updated: 12th September 2026