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Planning application

12 - 14 Harcourt Street London W1H 4HD

Awaiting decision Westminster 26/02157/FULL Full Planning Permission Application

Works: Extension

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Extension of and improvements to the existing ground floor terrace to the rear, modification to entrances, installation of security access gate, other associated external works and the installation of new signage. [Linked to 26/02158/ADV]

As published by the council, reference 26/02157/FULL

Application record

Reference
26/02157/FULL
Type
Full Planning Permission Application
Status
Pending
Received
31 Mar 2026
Validated
31 Mar 2026
Ward
Marylebone
Postcode
W1H 4HD

Site history

Applications at this address on the Westminster register

This site has had 5 applications since 2006: 2 approved, 0 refused.

  • 26/02158/ADV Awaiting decision

    12 - 14 Harcourt Street London W1H 4HD

    Display of two non-illuminated fascia signs measuring 0.31m x 1.98m and 0.46m x 3m. [Linked to 26/02157/FULL]

    Submitted 31 Mar 2026 Advertising
  • 25/08187/CLEUD Awaiting decision

    12 - 14 Harcourt Street London W1H 4HD

    Rear window at second floor; raised section of metal railings that enclose the rear roof area at the second floor; and alterations to the metal railings to install glazed panels.

    Submitted 10 Nov 2025 Lawful development
  • 06/06031/ADFULL Granted

    12 - 14 Harcourt Street London W1H 4HD

    Details of rolled lead roof to approved extension pursuant to Condition 4 of planning permission dated 08 June 2006 (RN: 06/00236).

    Decided 15 Aug 2006 Full applications
  • 06/00236/FULL Granted

    12 - 14 Harcourt Street London W1H 4HD

    Extension of rear second and third floors to provide additional office space (Class B1) and creation of a terrace area to the rear and side of the first floor. Installation of three air conditioning units to the rear first floor level.

    Decided 8 Jun 2006 Full applications

Timeline

Dates from the published record

  1. 31 Mar 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 26 May 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Westminster took a median of 66 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Firstplan Ltd Agent, registered in London

Active · incorporated 2003 · London

751 applications on PlanIndex · across 109 councils · 94% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

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

1 document 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.

Watch members (£5 a month) open the document list from here.

Open the documents

What happens while it is decided

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 91 days. More in our guide to how long planning decisions take.

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

  • 12 - 14 Harcourt Street London W1H 4HD

    06/06031/ADFULL Submitted 28 Jul 2006 50 yards away

    Details of rolled lead roof to approved extension pursuant to Condition 4 of planning permission dated 08 June 2006 (RN: 06/00236).

    Granted Full applications Extension 2 docs

  • 12 - 14 Harcourt Street London W1H 4HD

    26/02158/ADV Submitted 31 Mar 2026 50 yards away

    84% historically approved · decision due ~26 May

    Display of two non-illuminated fascia signs measuring 0.31m x 1.98m and 0.46m x 3m. [Linked to 26/02157/FULL]

    Awaiting decision Advertising 1 doc

  • 12 - 14 Harcourt Street London W1H 4HD

    06/00236/FULL Submitted 12 Jan 2006 50 yards away

    Extension of rear second and third floors to provide additional office space (Class B1) and creation of a terrace area to the rear and side of the first floor. Installation of three air conditioning units to the rear first floor level.

    Granted Full applications Extension 11 docs

  • 12 - 14 Harcourt Street London W1H 4HD

    25/08187/CLEUD Submitted 10 Nov 2025 50 yards away

    86% historically approved · decision due ~5 Jan

    Rear window at second floor; raised section of metal railings that enclose the rear roof area at the second floor; and alterations to the metal railings to install glazed panels.

    Awaiting decision Lawful development Windows or glazing 17 docs

  • 6 - 11 Harcourt Street London W1H 4AG

    26/02785/LBC Submitted 27 Apr 2026 50 yards away

    90% historically approved · decision due ~22 Jun

    Upgrading of Fire doors and creation of fire separating lobbies between different use classes.

    Awaiting decision Heritage and listed buildings 40 docs

  • 6 - 11 Harcourt Street London W1H 4AG

    25/09180/LBC Submitted 18 Dec 2025 50 yards away

    Internal alterations.

    Granted Heritage and listed buildings 26 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
  • 26/06273/FULL Awaiting decision

    9A Grosvenor Square London W1K 5AE

    Installation of new natural Portland Stone step surfaces to the two highway facing front entrance doors. (Linked to 26/05473/LBC)

    Received 14 Sep, published by the council 22 Sep 2026 Full applications
  • 26/06277/FULL Awaiting decision

    Hospital 60 Grove End Road London NW8 9NH

    Variation of conditions 1 and removal of condition 6 of planning permission dated 12th November 2019 (RN 19/07202/FULL) for the Variation of condition 12 of planning permission dated 21 June 2013 (RN: 13/01330/FULL) for the: Demolition of single storey block to north east elevation of main hospital building. Erection of three storey building (plus basement level) with link to existing hospital fronting onto Grove End Road and erection of two storey extension to the main entrance building, both to provide additional hospital accommodation (Class D1). Installation of mechanical plant and associated external alterations. NAMELY, to include amended phase 2 drawings and condition 6 to be removed as the as approved 11 car parking space are no longer proposed and the car lift is no longer shown on the amended plans.

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