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Planning application

26/00212/FUL

25 Marmion Road Southsea PO5 2AT

Awaiting decision Portsmouth Full Application

Proposal

Proposed mansard roof extension to provide an additional storey to accommodate 2No. 1-bedroom flats. Alterations to the existing external rear staircase to provide access to all flats and fenestration to the front elevation. Construction of second floor balcony.

As published by the council, reference 26/00212/FUL

Timeline

Dates from the published record

  1. 23 Feb 2026

    Received by Portsmouth

  2. 12 Mar 2026

    Validated

    Checked as complete and ready for consideration.

  3. 25 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

What happens while it is decided

The process from here

This application is with Portsmouth for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

About full applications applications

How this application type works

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

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