Public inquiry: HM Prison Grendon, Springhill Road, Grendon Underwood

On 24 January 2023 the Planning Inspectorate will start its public inquiry into the outline planning application with all matters reserved except for access, layout and scale for the construction of a new Category C prison (up to 67,000 sqm GEA) within a secure perimeter fence together with access, parking, landscaping and associated engineering works.

Planning application reference: 21/02851/AOP
Planning appeal reference: 22/00125/REF
Planning Inspectorate reference: APP/J0405/W/22/3307860

Attending the inquiry event

The inquiry will be held in-person in the Diamond Room at The Gateway, Gatehouse Road, Aylesbury, HP19 8FF.

If you cannot attend and need to take part remotely you should email [email protected] and quote ‘ HM Prison Grendon Springhill Road Grendon Underwood ’ in the subject line.

We will then send you joining instructions for a Microsoft Teams (online) meeting.

Available documents

If you're taking part via Microsoft Teams, you should ensure you've downloaded copies of the core documents and inquiry documents you plan to refer to. Be patient, as some file sizes are large.

The documents are available on Public Access. To access them, select 'Appeals' and then search for the appeal reference 22/00125/REF.

Other general correspondence and application-related documents are also available on Public Access.


Some inquiry documents may not be fully accessible.

If you have any problems viewing the content of the documents, you should email [email protected] and quote ‘HM Prison Grendon Springhill Road Grendon Underwood' in the subject line.

Final decision

The Secretary of State will make the final decision.

The inspector appointed for the inquiry will only prepare a report and recommendation.

For more information read the recovery letter from the Planning Inspectorate (PDF, 30 KB).