Planning Law

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Supreme court decision on HS2

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The Supreme Court today dismissed the joined appeals against the Government decision to progress HS2 through a Hybrid Bill and without a Strategic Environmental Assessment (“SEA”).   The judgment deals with SEA, Parliament’s role in assessing the environmental impact of a project and the constitutional basis of European Legislation,  in relation to the European law requiring environmental assessment.    Specialist environmental & public law firm Harrison Grant acted for the local authority appellants. The judgment can be found at and the press summary at