Portsmouth Grammar School Cambridge Road Portsmouth

This site has had 2 applications since 2026.

• 26/00308/LBC Awaiting decision

  Portsmouth Grammar School Cambridge Road Portsmouth

  Internal and external alterations to facilitate conversion of school (Class F1) to form 16no. residential dwellings (Class C3), including associated landscaping, refuse and cycle storage and demolition of existing ancillary rifle range/swimming pool buildings

  Submitted 13 Mar 2026 Heritage and listed buildings

1. 16 Mar 2026

   Received by Portsmouth

2. 25 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 25 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 20 May 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Portsmouth took a median of 56 days over the applications it decided in the last year.

This application is with Portsmouth for determination, against a statutory target of eight weeks. Over the last year Portsmouth decided full applications in a median of 74 days. More in our guide to how long planning decisions take.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• Portsmouth Grammar School Cambridge Road Portsmouth

  26/00308/LBC Submitted 13 Mar 2026 2m away

  88% historically approved · decision due ~20 May

  Internal and external alterations to facilitate conversion of school (Class F1) to form 16no. residential dwellings (Class C3), including associated landscaping, refuse and cycle storage and demolition of existing ancillary rifle range/swimming pool buildings

  Awaiting decision Heritage and listed buildings Demolition 12 docs

• Portsmouth Grammer School High Street Portsmouth PO1 2LN

  26/00034/LBC Submitted 14 Jan 2026 174m away

  88% historically approved · decision due ~18 Mar

  Internal alterations including creation of larger openings to form new common rooms and to accommodate a pre-school External alterations including Installation of railings, 3 no. external canopy structures and alterations to fenestration

  Awaiting decision Heritage and listed buildings Windows or glazing 40 docs

• Portsmouth Grammer School High Street Portsmouth PO1 2LN

  26/00033/FUL Submitted 14 Jan 2026 174m away

  83% historically approved · decision due ~18 Mar

  Internal alterations including creation of larger openings to form new common rooms and to accommodate a pre-school External alterations including Installation of railings, 3 no. external canopy structures and alterations to fenestration

  Awaiting decision Full applications Windows or glazing 29 docs

• 15 High Street Portsmouth PO1 2LP

  26/00316/LBC Submitted 16 Mar 2026 211m away

  88% historically approved · decision due ~11 May

  Remodelling of interior, removal of rear bay window to be replaced with new timber glazed doors. Adaption to existing single-storey extension with new timber glazed doors and window. Removal of existing railings to roof terrace to be replaced with new traditional style black metal railings.

  Awaiting decision Heritage and listed buildings Extension Windows or glazing 6 docs
  Small domestic

• 15 High Street Portsmouth PO1 2LP

  26/00315/HOU Submitted 16 Mar 2026 211m away

  87% historically approved · decision due ~11 May

  Remodelling of interior, removal of rear bay window to be replaced with new timber glazed doors. Adaption to existing single-storey extension with new timber glazed doors and window. Removal of existing railings to roof terrace to be replaced with new traditional style black metal railings.

  Awaiting decision Householder Extension Windows or glazing 6 docs
  Small domestic

• Buckingham Cottage 1 Highbury Street Portsmouth PO1 2EU

  25/01403/FUL Submitted 2 Dec 2025 262m away

  Conversion of existing hotel (Class C1) to single dwellinghouse (Class C3), including provision of refuse and cycle storage and alterations to the existing boundary wall to facilitate creation of off-street parking

  Granted Full applications 5 docs
  Small domestic

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  Magma House Trafalgar Wharf Hamilton Road Portsmouth PO6 4PX

  Alterations to boundary treatment to square off fence to West elevation

  12 Feb 2026 Full applications
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  Conversion from 3no. self-contained flats (Class C3) to single dwellinghouse (Class C3) including construction of single storey rear and side extension, relocation of garage and associated alterations

  5 Feb 2026 Full applications
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  Installation of replacement windows

  17 Dec 2025 Full applications
• 25/01359/FUL Granted

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  Change of use from dwellinghouse (Class C3) to 7-bed/7-person House in Multiple Occupation (Sui Generis)

  21 Nov 2025 Full applications
• 26/00185/FUL Granted

  2 Spur Road Portsmouth PO6 3EB

  Change of use from office (Class E) to dwellinghouse (Class C3)

  13 Feb 2026 Full applications