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Planning application

1 Portland Place London W1B 1PR

Granted Westminster 25/09197/FULL Full Planning Permission Application

Works: Roofing

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Removal and replacement of an existing roof plantroom stairway through installation of a new roof plantroom stairway.

As published by the council, reference 25/09197/FULL

Application record

Reference
25/09197/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
19 Dec 2025
Validated
13 Jan 2026
Decided
29 Apr 2026
Ward
Marylebone
Decision by
Delegated Decision
Postcode
W1B 1PR

Site history

Applications at this address on the Westminster register

This site has had 2 applications since 2025: 1 approved, 0 refused.

  • 26/05148/ADFULL Decided

    1 Portland Place London W1B 1PR

    Detailed drawings of visual screening for the new plant in the front area lightwell pursuant to Condition 6 of planning permission dated 27th June 2025 (RN: 25/03113/FULL).

    Submitted 30 Jul 2026

Timeline

Dates from the published record

  1. 19 Dec 2025

    Received by Westminster

  2. 13 Jan 2026

    Validated

    Checked as complete and ready for consideration.

  3. 29 Apr 2026

    Decision issued: Application Permitted

  4. 20 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

The Howard De Walden Estate Limited Agent

5 applications on PlanIndex

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See their track record

Documents

Plans, drawings, consultee responses and the officer's report

21 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.

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What this grant of permission means

Westminster granted permission on 29 April 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

About full applications

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.

Nearby applications

Within 0.3 miles

  • 4 Chandos Street London W1G 9DH

    13/02928/ADFULL Submitted 2 Apr 2013 50 yards away

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    Granted Full applications 4 docs

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    26/01962/AD7 Submitted 25 Mar 2026 50 yards away

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    06/05281/FULL Submitted 4 Jul 2006 50 yards away

    Installation of six air conditioning condenser units located at fifth floor level within a screened enclosure.

    Withdrawn Full applications 7 docs

  • 7-10 Chandos Street London W1G 9DQ

    11/12046/NMA Submitted 12 Dec 2011 50 yards away

    Non-material amendments to planning permission dated 17 May 2011 (RN:11/02804) for installation of three condenser units at first floor level within the rear lightwell and five units at seventh floor roof level.namely; for re-positioning of the three condenser units at first floor level within the rear lightwell.

    Granted Amendments 4 docs
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  • 7 - 10 Chandos Street London W1G 9DQ

    07/07815/FULL Submitted 6 Sep 2007 50 yards away

    Installation of three air conditioning units at second floor level within rear lightwell.

    Granted Full applications 10 docs

In Westminster

  • 26/06295/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Installation of a new shopfront with Medication Dispensing Outlet.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06297/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Alterations to rear elevation at basement level comprising replacement window and installation of double opening door.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06294/FULL Awaiting decision

    15 Eaton Mews South London SW1W 9HP

    Installation of railings and sliding lantern light at main roof level in connection with the use of the roof as a terrace.

    Received 15 Sep, published by the council 22 Sep 2026 Full applications
  • 26/06317/FULL Awaiting decision

    124 Hamilton Terrace London NW8 9UT

    Replacement of existing first-floor sash windows to the front and rear elevations with traditionally detailed painted timber, slim-profile double-glazed sash windows. (Linked to 26/06318/LBC)

    Received 15 Sep, published by the council 22 Sep 2026 Full applications
  • 26/06273/FULL Awaiting decision

    9A Grosvenor Square London W1K 5AE

    Installation of natural Portland Stone paving to two front entrances. (Linked to 26/05473/LBC)

    Received 14 Sep, published by the council 22 Sep 2026 Full applications