Skip to content
PlanIndex Get alerts
Menu

Planning application

26/04282/FULL

First Floor To Fifth Floor 143 - 149 Great Portland Street London W1W 6QN

Awaiting decision Westminster Full Planning Permission Application

Proposal

Variation of condition 2 of planning permission dated 17 October 2014 (RN: 14/07298/FULL) which itself varied condition 2 of planning permission dated 6 May 2004 (RN: 03/09722), for alterations, including extension of existing fire escape staircase in connection with use of first to fifth floors for educational purposes (Class D1) as an annexe to Portland Place School at 56-58 Portland Place). NAMELY, to allow the extension of planning permission for educational use until 31 December 2032.

As published by the council, reference 26/04282/FULL

Timeline

Dates from the published record

  1. 29 Jun 2026

    Received by Westminster

  2. 30 Jun 2026

    Validated

    Checked as complete and ready for consideration.

  3. 21 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 Westminster 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

Nearby applications

Within 500 metres

  • 22/03733/ADV Granted

    143-149 Great Portland Street London W1W 6QN

    Display of an internally illuminated projecting sign.

    8 Jun 2022 0m away Advertising
  • 11/09548/ADFULL Granted

    36-40 Hallam Street London W1W 6NW

    Sample of granite pursuant to Condition 1 of planning permission consent dated 18 November 2008 (RN: 08/07256).

    4 Oct 2011 20m away Full applications
  • 12/08985/FULL Granted

    36-40 Hallam Street London W1W 6NW

    Installation of an access ramp at ground floor level on the Great Portland Street elevation.

    11 Sep 2012 20m away Full applications
  • 07/10606/FULL Granted

    36 - 40 Hallam Street London W1W 6NW

    Removal of section of railing and installation of gate on Hallam Street elevation to create waste storage area.

    5 Dec 2007 20m away Full applications
  • 07/06821/FULL Withdrawn

    36 - 40 Hallam Street London W1W 6NW

    Provision of disabled access ramp to Great Portland Street entrance.

    2 Aug 2007 20m away Full applications
  • 26/00984/NMA Granted

    Northumberland House 155 - 157 Great Portland Street London W1W 6QP

    Amendments to planning permission dated 12th November 2024 (RN: 24/06018/FULL) for Alterations to the entrance at ground floor level and installation of plant with screening and associated equipment at roof level. Namely, omission of previously approved GRP housing at roof level, relocation of 1no 175mm x 450mm louvre integrated into the head of existing WC window; and introduction of 6no 500mmx500mm ventilation louvres to south west elevation.

    17 Feb 2026 33m away Amendments

In Westminster

  • 26/04824/ADFULL Granted

    New Zealand House 80 Haymarket London SW1Y 4TE

    Detailed design and specification of new blinds to NZH based on mock-up trials on-site. pursuant to condition 32 (i) of planning permission dated 8th April 2024 (23/00571/FULL).

    20 Jul 2026 Full applications
  • 26/04829/ADFULL Granted

    New Zealand House 80 Haymarket London SW1Y 4TE

    Details of external and internal signage strategy pursuant to Condition 33(E) of planning permission dated 8th April 2024 (RN: 23/00571/FULL)

    20 Jul 2026 Full applications
  • 26/04841/ADFULL Granted

    29 Henstridge Place London NW8 6QD

    Details of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to condition 5 of planning permission dated 18th November 2025 (RN:25/06159).

    20 Jul 2026 Full applications
  • 26/04989/FULL Awaiting decision

    1 Kildare Terrace London W2 5JT

    Erection of a mansard roof extending over the main house and side wing, replacement lower ground rear extension with roof terrace above, lowering of lower ground floor slab, installation of an air source heat pump in rear garden, new front boundary treatment, and new second floor window on the north elevation.

    24 Jul 2026 Full applications
  • 26/04986/FULL Awaiting decision

    Inver Court Inverness Terrace London W2 6JB

    Replacement of combustible materials in the render facades; timber decking and plastic soffits/ fascias to terraces with non-combustible materials on the 5th and 6th floors.

    24 Jul 2026 Full applications