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Planning application

57 Harley Street London W1G 8QS

Decided Westminster 25/08482/FULL Full applications

Works: Extension Windows or glazing

Decided. The decision notice on the council portal carries the outcome in full, including any conditions.

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
Category
Full applications
Status
Decided
Received
19 Nov 2025
Validated
19 Nov 2025
Ward
Marylebone
Postcode
W1G 8QS

Site history

Applications at this address on the Westminster register

This site has had 4 applications since 2025: 1 approved, 0 refused.

  • 26/04231/FULL Awaiting decision

    57 Harley Street London W1G 8QS

    Erection of rooftop plant and acoustic enclosure.

    Submitted 26 Jun 2026 Full applications
  • 25/08560/ADFULL Granted

    57 Harley Street London W1G 8QS

    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)

    Decided 16 Jun 2026 Full applications
  • 25/08306/ADFULL Awaiting decision

    57 Harley Street London W1G 8QS

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

    Submitted 13 Nov 2025 Full applications

Timeline

Dates from the published record

  1. 19 Nov 2025

    Received by Westminster

  2. 20 Aug 2026

    Added to PlanIndex

  3. 15 Sep 2026

    Status changed to Decided

    Previously Pending.

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.

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

Open the documents

After the decision

Westminster has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. 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 0.3 miles

  • 57 Harley Street London W1G 8QS

    26/04231/FULL Submitted 26 Jun 2026 50 yards away

    88% historically approved · decision due ~21 Aug

    Erection of rooftop plant and acoustic enclosure.

    Awaiting decision Full applications

  • 57 Harley Street London W1G 8QS

    25/08560/ADFULL Submitted 21 Nov 2025 50 yards 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 50 yards away

    88% 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 5 docs

  • Flat 2 50 Harley Street London W1G 9PX

    26/04054/LBC Submitted 19 Jun 2026 50 yards 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 50 yards 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 50 yards 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

  • 26/05984/FULL Decided

    41 Sutherland Street London SW1V 4JX

    Replacement of front, side and rear windows with double glazed timber framed sash windows and replacement of a door with a double glazed timber framed door.

    Received 2 Sep, published by the council 11 Sep 2026 Full applications
  • 26/06134/FULL Decided

    Flat 10H Hyde Park Mansions Cabbell Street London NW1 5BG

    Replacement of front and rear second floor level windows with slim-profile double-glazed panels, retaining the existing window and door frames.

    Received 8 Sep, published by the council 15 Sep 2026 Full applications
  • 26/07258/FULL Awaiting decision

    16A Croxley Road London W9 3HL

    Installation of air to air heat pumps to offices and bedrooms.

    Received 22 Oct, published by the council 23 Oct 2026 Full applications
  • 26/07193/FULL Awaiting decision

    98 Victoria Street London SW1E 5JL

    Shopfront alterations. (Linked with 26/07194/ADV)

    Received 21 Oct, published by the council 22 Oct 2026 Full applications
  • 26/07187/FULL Awaiting decision

    Ground Floor Flat 151 Portnall Road London W9 3BN

    Erection of a single storey rear extension.

    Received 21 Oct, published by the council 22 Oct 2026 Full applications