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Planning application

57 Harley Street London W1G 8QS

Awaiting decision Westminster 25/08482/FULL Full Planning Permission Application

Works: Extension Windows or glazing

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

Proposal

Erection of rear first floor extension with sedum green roof finish and alterations to form door in existing window opening to allow access to first floor roof.

As published by the council, reference 25/08482/FULL

Application record

Reference
25/08482/FULL
Type
Full Planning Permission Application
Status
Pending
Received
19 Nov 2025
Validated
19 Nov 2025
Ward
Marylebone
Postcode
W1G 8QS

Timeline

Dates from the published record

  1. 19 Nov 2025

    Received by Westminster

  2. 20 Aug 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 14 January 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 61 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Agent on file, registered in Eastbourne

4 applications on PlanIndex · across 2 councils

Trade members see who it is, their full track record, and every application they have filed.

See who's behind it

Documents

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

27 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 happens while it is decided

The process from here

This application is with Westminster for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

About full applications applications

How this application type works

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

Nearby applications

Within 500 metres

  • 57 Harley Street London W1G 8QS

    25/08560/ADFULL Submitted 21 Nov 2025 3m away

    Details of windows, concertina doors and lightwell lift balustrading; biodiversity management plan for green roof; adherance to CoCP; and consultation with London Underground Ltd pursuant to Conditions 4, 6, 7 and 14 of planning permission dated 23 October 2025 (RN: 25/02646/FULL)

    Granted Full applications Windows or glazing 36 docs

  • 57 Harley Street London W1G 8QS

    25/08306/ADFULL Submitted 13 Nov 2025 3m away

    87% historically approved · decision due ~8 Jan

    Details of brick sample panel pursuant to condition 5 of planning permission dated 23rd October 2025 (RN:25/02646/FULL).

    Awaiting decision Full applications 3 docs

  • 57 Harley Street London W1G 8QS

    26/04231/FULL Submitted 26 Jun 2026 5m away

    87% historically approved · decision due ~21 Aug

    Erection of rooftop plant and acoustic enclosure.

    Awaiting decision Full applications

  • Flat 2 50 Harley Street London W1G 9PX

    26/04054/LBC Submitted 19 Jun 2026 39m away

    90% historically approved · decision due ~24 Aug

    Internal alterations.

    Awaiting decision Heritage and listed buildings 10 docs

  • 48 Harley Street London W1G 9PU

    26/02761/LBC Submitted 24 Apr 2026 43m away

    90% historically approved · decision due ~19 Jun

    Internal alterations in the form of new stud wall partitions to lower ground floor.

    Awaiting decision Heritage and listed buildings 11 docs

  • 48 Harley Street London W1G 9QA

    04/08761/AD7 Submitted 5 Nov 2004 46m away

    Display for a temporary period of six months of a non-illuminated 'to let'/ 'for sale' board attached to the railings in front of the building at street level and measuring 0.6 x 0.45m.

    Granted Advertising 2 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