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Planning application

45 New Cavendish Street London W1G 9TJ

Granted Westminster 25/07901/FULL Full Planning Permission Application

Relates to 25/07902/LBC

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

Proposal

Use of part of the lower ground floor for retail purposes (Class E). (Linked with 25/07902/LBC)

As published by the council, reference 25/07901/FULL

Application record

Reference
25/07901/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Application Permitted
Received
31 Oct 2025
Validated
4 Nov 2025
Decided
4 Mar 2026
Ward
Marylebone
Decision by
Delegated Decision
Postcode
W1G 9TJ

Site history

Applications at this address on the Westminster register

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

  • 25/07902/LBC Granted

    45 New Cavendish Street London W1G 9TJ

    Internal alterations at ground and lower ground level including reinstatement of staircase. (Linked with 25/07901/FULL)

    Decided 4 Mar 2026 Heritage and listed buildings

Timeline

Dates from the published record

  1. 31 Oct 2025

    Received by Westminster

  2. 4 Nov 2025

    Validated

    Checked as complete and ready for consideration.

  3. 4 Mar 2026

    Decision issued: Application Permitted

  4. 21 Jul 2026

    Added to PlanIndex

Cases linked to this one on the register

  • 25/07902/LBC Granted

    45 New Cavendish Street London W1G 9TJ

    Internal alterations at ground and lower ground level including reinstatement of staircase. (Linked with 25/07901/FULL)

    Decided 4 Mar 2026 Heritage and listed buildings

1 later application on the register refers to this one:

  • 25/07902/LBC Granted

    45 New Cavendish Street London W1G 9TJ

    Internal alterations at ground and lower ground level including reinstatement of staircase. (Linked with 25/07901/FULL)

    Decided 4 Mar 2026 Heritage and listed buildings

Who's behind it

Company information only, from the register and Companies House

Hertford Planning Service Agent, a planning consultancy

137 applications on PlanIndex · across 12 councils · 83% granted

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

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Documents

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

16 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 4 March 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 500 metres

  • 45 New Cavendish Street London W1G 9TJ

    25/07902/LBC Submitted 31 Oct 2025 1m away

    Internal alterations at ground and lower ground level including reinstatement of staircase. (Linked with 25/07901/FULL)

    Granted Heritage and listed buildings 11 docs

  • Flat 6 New Cavendish Court 39 New Cavendish Street London W1G 9TN

    22/03223/FULL Submitted 13 May 2022 22m away

    Amalgamation of Flats 5 and 6 (Class C3) at third floor level to form one new self contained family sized dwelling.

    Granted Full applications New dwelling 11 docs
    Domestic

  • Flat 2 New Cavendish Mansions 48 New Cavendish Street London W1G 8TG

    26/00872/FULL Submitted 12 Feb 2026 34m away

    87% historically approved · decision due ~9 Apr

    Retrofit of existing windows, including insertion of slimline double-glazing windowpanes to front facade.

    Awaiting decision Full applications Windows or glazing 13 docs

  • 54 Wimpole Street London W1G 8YJ

    26/01617/ADLBC Submitted 12 Mar 2026 36m away

    91% historically approved · decision due ~7 May

    Details pursuant to condition 5 of listed building consent dated 15th August 2025 (RN:25/02411/LBC).

    Awaiting decision Conditions 15 docs

  • 53 Wimpole Street London W1G 8YH

    26/06250/LBC Submitted 11 Sep 2026 44m away

    90% historically approved · decision due ~6 Nov

    Removal and Installation of external rear air condensers and associated pipe work to ground floor, including internal works to ground and first floor. (Linked with 26/06249/FULL)

    Awaiting decision Heritage and listed buildings

  • 53 Wimpole Street London W1G 8YH

    26/06249/FULL Submitted 11 Sep 2026 44m away

    87% historically approved · decision due ~6 Nov

    Removal and Installation of external rear air condensers and associated pipe work to ground floor, including internal works to ground and first floor. (Linked with 26/06250/LBC)

    Awaiting decision Full applications

In Westminster

  • 26/06295/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Installation of a new shopfront.

    15 Sep 2026 Full applications
  • 26/06297/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

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

    15 Sep 2026 Full applications
  • 26/06234/FULL Awaiting decision

    40 Grosvenor Place London SW1X 7HJ

    Use of lower ground floor of Unit 3 and ground floor of Unit 2 as gym (Class E(d)) and/ or office (Class E(g))

    11 Sep 2026 Full applications
  • 26/06249/FULL Awaiting decision

    53 Wimpole Street London W1G 8YH

    Removal and Installation of external rear air condensers and associated pipe work to ground floor, including internal works to ground and first floor. (Linked with 26/06250/LBC)

    11 Sep 2026 Full applications
  • 26/03576/FULL Decided

    15A Devonshire Terrace London W2 3DW

    Erection of an infill extension to basement courtyard to form new bedroom and internal alterations. (Linked with 26/03577/LBC)

    1 Jun 2026 Full applications