Skip to content
PlanIndex Get alerts
Menu

Planning application

21A Devonshire Street London W1G 6PD

Granted Westminster 03/03771/FULL Application for full Planning Permission

Works: Extension Windows or glazing

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

Proposal

Erection of 2-storey side/rear extension at 2nd and 3rd floor levels (fronting Devonshire Place Mews). Provision of terrace at 2nd floor level and installation of a fully glazed facade to stair enclosure, all in connection with the conversion of first floor to residential in connection with existing flat on upper floors.

As published by the council, reference 03/03771/FULL

Application record

Reference
03/03771/FULL
Type
Application for full Planning Permission
Status
Decided
Decision
Application Permitted
Received
12 May 2003
Validated
12 May 2003
Decided
20 Jan 2004
Ward
Marylebone High Street
Decision by
Complex Delegated Decision
Postcode
W1G 6PD

Timeline

Dates from the published record

  1. 12 May 2003

    Received by Westminster

  2. 20 Jan 2004

    Decision issued: Application Permitted

  3. 30 Aug 2026

    Added to PlanIndex

Documents

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

6 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.

Trade members open them from here.

Open the documents

What this grant of permission means

Westminster granted permission on 20 January 2004, 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 500 metres

  • 41 Devonshire Place London W1G 6JY

    25/07573/LBC Submitted 20 Oct 2025 32m away

    90% historically approved · decision due ~15 Dec

    Reinstatement of the brick arches to the vaults; the reinstatement of the brickwork bridge to the secondary entrance; reinstatement of metal access stair within the lightwell; other associated renovation works. (Linked with 25/07572/FULL)

    Awaiting decision Heritage and listed buildings 23 docs
  • 41 Devonshire Place London W1G 6JY

    25/07572/FULL Submitted 20 Oct 2025 34m away

    87% historically approved · decision due ~15 Dec

    Reinstatement of the brick arches to the vaults; the reinstatement of the brickwork bridge to the secondary entrance; reinstatement of metal access stair within the lightwell; other associated renovation works. (Linked with 25/07573/LBC)

    Awaiting decision Full applications 25 docs
  • 41 Devonshire Place London W1G 6JY

    25/06472/ADLBC Submitted 10 Sep 2025 34m away

    Detailed drawings of all new electrical service routes pursuant to condition 8 (E) of listed building dated 28th July 2025 (RN: 24/08954/LBC)

    Granted Conditions 15 docs
  • 41 Devonshire Place London W1G 6JY

    25/07833/ADLBC Submitted 29 Oct 2025 34m away

    90% historically approved · decision due ~24 Dec

    Details of the fall arrest system at main roof level, including a roof plan showing fixing locations and details of the height of any fixing points above the roof surface pursuant to partial discharge of condition 8(a) of listed building consent 28 July 2025 (RN: 24/08954/LBC). Linked to 25/07837/ADFULL.

    Awaiting decision Conditions 5 docs
  • 41 Devonshire Place London W1G 6JY

    25/07837/ADFULL Submitted 29 Oct 2025 34m away

    87% historically approved · decision due ~24 Dec

    Details of fall arrest system, Fan lights and External doors pursuant to condition 4 of planning permission dated 28th July 2025 (RN: 24/08953/FULL). Linked to 25/07833/ADLBC

    Awaiting decision Full applications 9 docs
  • 41 Devonshire Place London W1G 6JY

    25/06960/ADLBC Submitted 26 Sep 2025 34m away

    Details of external and internal doors and proposed chimneypieces for Room B2-06 pursuant to condition 8(c,d) of listed building consent dated 28th July 2025 (RN: 24/08954).

    Granted Conditions 15 docs

In Westminster

  • 26/06024/FULL Awaiting decision

    House Of Commons Palace Of Westminster Parliament Square London SW1A 0AA

    Installation of new and replacement electronic equipment within Speaker. (Linked with 26/06025/LBC)

    3 Sep 2026 Full applications
  • 26/06017/FULL Awaiting decision

    38 Lauderdale Mansions Lauderdale Road London W9 1NE

    Installation of an external AC Unit / Heat Pump at roof level.

    2 Sep 2026 Full applications
  • 26/05938/FULL Awaiting decision

    24 Vincent Square London SW1P 2NJ

    Subdivision of existing residential property to create two self-contained 3-bedroom family homes, along with cycle parking and associated external alterations.

    1 Sep 2026 Full applications
  • 26/05935/FULL Awaiting decision

    47 Hereford Road London W2 5AH

    Installation of one number new external condenser unit to the southerly elevation service alley.

    1 Sep 2026 Full applications
  • 26/05959/FULL Awaiting decision

    Basement And Ground Floor 50 New Bond Street London W1S 1BJ

    Installation of three new condensers on the roof, within an existing designated plant area.

    1 Sep 2026 Full applications