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Planning application

15 - 17 Huntsworth Mews London NW1 6DE

Granted Westminster 05/04774/CLEUD Certificate of Lawfulness (existing)

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

Proposal

Installation of six air conditioning units on rooftop.

As published by the council, reference 05/04774/CLEUD

Application record

Reference
05/04774/CLEUD
Type
Certificate of Lawfulness (existing)
Status
Decided
Decision
Granted As published: Application Permitted
Received
16 Jun 2005
Validated
14 Oct 2005
Decided
21 Oct 2005
Ward
Bryanston And Dorset Square
Decision by
Delegated Decision
Postcode
NW1 6DE

Site history

Applications at this address on the Westminster register

This site has had 4 applications since 2005: 3 approved, 1 refused.

  • 06/10231/ADFULL Granted

    15 - 17 Huntsworth Mews London NW1 6DE

    Details of cable routes and louvre screening pursuant to Conditions 5 and 6 of planning permission dated 16 November 2006 (RN: 06/04407).

    Decided 23 Feb 2007 Full applications
  • 06/04407/FULL Granted

    15 - 17 Huntsworth Mews London NW1 6DE

    Relocation of three air conditioning units and addition of four further units within an acoustic screen on the rooftop.

    Decided 16 Nov 2006 Full applications
  • 05/04775/FULL Refused

    15 - 17 Huntsworth Mews London NW1 6DE

    Retention of three air conditioning units on the rooftop.

    Decided 7 Mar 2006 Full applications

Timeline

Dates from the published record

  1. 16 Jun 2005

    Received by Westminster

  2. 14 Oct 2005

    Validated

    Checked as complete and ready for consideration.

  3. 21 Oct 2005

    Decision issued: Application Permitted

  4. 29 Jul 2026

    Added to PlanIndex

Documents

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

7 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.

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

Open the documents

What this grant of permission means

Westminster granted permission on 21 October 2005, 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 lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 15 - 17 Huntsworth Mews London NW1 6DE

    06/10231/ADFULL Submitted 20 Dec 2006 50 yards away

    Details of cable routes and louvre screening pursuant to Conditions 5 and 6 of planning permission dated 16 November 2006 (RN: 06/04407).

    Granted Full applications 3 docs

  • 15 - 17 Huntsworth Mews London NW1 6DE

    05/04775/FULL Submitted 16 Jun 2005 50 yards away

    Retention of three air conditioning units on the rooftop.

    Refused Full applications 8 docs

  • 15 - 17 Huntsworth Mews London NW1 6DE

    06/04407/FULL Submitted 6 Jun 2006 50 yards away

    Relocation of three air conditioning units and addition of four further units within an acoustic screen on the rooftop.

    Granted Full applications 9 docs

  • Tennyson Court 12 Dorset Square London NW1 6QB

    25/06632/LBC Submitted 16 Sep 2025 50 yards away

    90% historically approved · decision due ~11 Nov

    Externall repairs and decorations to the front elevation of Tennyson Court.

    Awaiting decision Heritage and listed buildings 6 docs

  • 10 Dorset Square London NW1 6QB

    25/06758/LBC Submitted 19 Sep 2025 50 yards away

    Installation of steel beam to loft space to provide additional support to roof.

    Granted Heritage and listed buildings 19 docs

  • Flat 6 18 Dorset Square London NW1 6QB

    26/01672/FULL Submitted 16 Mar 2026 50 yards away

    88% historically approved · decision due ~11 May

    Replacement of windows and door with new at fourth and fifth floor levels. (Linked with 26/00742/LBC)

    Awaiting decision Full applications Windows or glazing 13 docs

In Westminster

  • 26/07468/CLOPUD Awaiting decision

    14 - 16 Great Portland Street London W1W 8QW

    Confirmation the demolition of the existing outrigger structure at fifth floor level (the Proposed Works) constitutes the lawful commencement of development pursuant to the Permission.

    Received 3 Nov, published by the council 5 Nov 2026 Lawful development
  • 26/07423/CLOPUD Awaiting decision

    103 Elgin Avenue London W9 2NP

    Painting of the decorative stonework, window frames and doors on the front elevation and front boundary wall

    Received 2 Nov, published by the council 4 Nov 2026 Lawful development
  • 26/07454/CLOPUD Awaiting decision

    10 Stratton Street London W1J 8LG

    Changes to existing windows and doors

    Received 2 Nov, published by the council 5 Nov 2026 Lawful development
  • 26/07381/CLEUD Awaiting decision

    Ground Floor Rear Flat 4 Mozart Street London W10 4LA

    Use of the ground floor rear flat as short-term visitor accommodation.

    Received 28 Oct, published by the council 5 Nov 2026 Lawful development
  • 26/07339/CLOPUD Awaiting decision

    123 Victoria Street London SW1E 6DE

    Use of part of ground floor reception area within Class E including, but not limited to, a retail café (Class E(a)).

    Received 27 Oct, published by the council 30 Oct 2026 Lawful development