Planning application
HM Prison Grendon Springhill Road Grendon Underwood Buckinghamshire HP18 0TL
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Application to amend section 106 agreement to trigger for submission and approval of travel plan prior to occupation relating to 21/02851/AOP
As published by the council, reference PL/25/2838/MDLA
Application record
- Reference
- PL/25/2838/MDLA
- Type
- Mod & Discharge of Legal Agreement
- Status
- Registered
- Received
- 14 Aug 2025
- Validated
- 14 Aug 2025
- Ward
- Grendon Underwood and The Claydons
- Parish
- Grendon Underwood
- Decision by
- Delegated Decision
- Postcode
- HP18 0TL
Site history
Applications at this address on the Buckinghamshire register
This site has had 13 applications since 2025: 2 approved, 0 refused.
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PL/26/01955/NMA Decided
HM Prison Grendon Springhill Road Grendon Underwood Buckinghamshire HP18 0TL
Proposed non-material amendment to planning permission 21/02851/AOP (allowed on appeal 22/00125/REF) (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) to allow for amendment to wording of Condition 26.
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PL/25/6622/CONDA Decided
HM Prison Grendon Springhill Road Grendon Underwood Buckinghamshire HP18 0TL
Application for approval of details subject to condition 37 (surface water drainage) relating to Planning Permission 21/02851/AOP (allowed on appeal 22/00125/REF)
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PL/25/5758/MDLA Decided
HM Prison Grendon Springhill Road Grendon Underwood Buckinghamshire HP18 0TL
Application under Section 106 of the Town & Country Planning Act 1990 (as amended) to discharge planning obligation at First Schedule, Part 2, (Highway Works Delivery Programme) of the Section 106 Agreement for application 21/02851/AOP
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PL/25/4864/SA Granted
HM Prison Grendon Springhill Road Grendon Underwood Buckinghamshire HP18 0TL
Certificate of Lawfulness for proposed creation of temporary haul road for construction
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PL/25/4863/NMA Decided
HM Prison Grendon Springhill Road Grendon Underwood Buckinghamshire HP18 0TL
Non material amendment to planning permission 21/02851/AOP (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) to ensure the discharge rates (drainage) reflect the permeable areas of the detailed scheme
-
PL/25/3615/NMA Decided
HM Prison Grendon Springhill Road Grendon Underwood Buckinghamshire HP18 0TL
Proposed non-material amendment to permission for 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 granted under planning ref: 21/02851/AOP (allowed on appeal 22/00125/REF)
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PL/25/3226/CONDA Decided
HM Prison Grendon Springhill Road Grendon Underwood Buckinghamshire HP18 0TL
Application for approval of details subject to condition 10 (construction traffic management plan) relating to Planning Permission 21/02851/AOP (allowed on appeal 22/00125/REF)
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PL/25/3123/SA Granted
HM Prison Grendon Springhill Road Grendon Underwood Buckinghamshire HP18 0TL
Certificate of lawfulness for proposed creation of temporary construction access
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PL/25/3128/CONDA Decided
HM Prison Grendon Springhill Road Grendon Underwood Buckinghamshire HP18 0TL
Application for approval of details subject to condition 25 (Landscape Management Plan) relating to Planning Permission 21/02851/AOP (allowed on appeal 22/00125/REF)
-
PL/25/3029/NMA Decided
HM Prison Grendon Springhill Road Grendon Underwood Buckinghamshire HP18 0TL
Proposed non-material amendment to permission for 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 granted under planning ref: 21/02851/AOP (allowed on appeal 22/00125/REF)
Timeline
Dates from the published record
-
14 Aug 2025
Received by Buckinghamshire
-
4 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 9 October 2025, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Buckinghamshire took a median of 58 days over the applications it decided in the last year.
Documents
Plans, drawings, consultee responses and the officer's report
4 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat happens while it is decided
This application is with Buckinghamshire for determination, against a statutory target of eight weeks. Over the last year Buckinghamshire decided condition discharge and variation applications in a median of 56 days. More in our guide to how long planning decisions take.
About condition discharge and variation applications
This application deals with conditions on an existing permission, supplying the details a condition requires or asking to vary or remove one, without reopening the permission itself. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
HM Prison Grendon Springhill Road Grendon Underwood Buckinghamshire HP18 0TL
Proposed non-material amendment to planning permission 21/02851/AOP (allowed on appeal 22/00125/REF) (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) to allow for amendment to wording of Condition 26.
Decided Amendments 5 docsSmall domestic -
Hm Prison Grendon Springhill Road Grendon Underwood Buckinghamshire HP18 0TL
Proposed non-material amendment to permission for 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 granted under planning ref: 21/02851/AOP (allowed on appeal 22/00125/REF)
Decided Amendments 9 docsSmall domestic -
HM Prison Grendon Springhill Road Grendon Underwood Buckinghamshire HP18 0TL
Non material amendment to planning permission 21/02851/AOP (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) to ensure the discharge rates (drainage) reflect the permeable areas of the detailed scheme
Decided Amendments 9 docsSmall domestic -
HM Prison Grendon Springhill Road Grendon Underwood Buckinghamshire HP18 0TL
Proposed non-material amendment to permission for 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 granted under planning ref: 21/02851/AOP (allowed on appeal 22/00125/REF)
Decided Amendments 4 docsSmall domestic -
HM Prison Grendon Springhill Road Grendon Underwood Buckinghamshire HP18 0TL
Certificate of Lawfulness for proposed creation of temporary haul road for construction
Granted Lawful development 8 docs -
HM Prison Grendon Springhill Road Grendon Underwood Buckinghamshire HP18 0TL
Application for approval of details subject to condition 10 (construction traffic management plan) relating to Planning Permission 21/02851/AOP (allowed on appeal 22/00125/REF)
Decided Conditions 6 docs
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PL/25/5679/CONDA Decided
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PL/25/3951/CONDA Decided
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PL/25/5356/VRC Granted
138-154 Maxwell Road Beaconsfield Buckinghamshire HP9 1QX
Variation of condition 24 (Approved plans) relating to application PL/24/3583/VRC (Variation of condition 24 (approved plans) of application PL/23/4018/VRC relating to variations of the original planning permission PL/20/4432/OA (Outline planning permission for the demolition of 138-150 (even numbers) Maxwell Road, works to 152 and 154 Maxwell Road to convert party wall to external wall, and erection of 3 buildings comprising residential flats with associated access, landscaping and infrastructure) to allow for changes : Block A - increases in plots 11 and 17 ; Block B - increase in plot 20, alterations to roof and reconfiguration of bin store ; Block C - creation of an additional dwelling ; changes to parking layout.) to allow for 2 no. additional flats into block A and 1 no. flat into block B, relocation of entry gates and elevational enhancements