Skip to content
PlanIndex Get alerts
Menu

Planning application

8 Bentinck Street London W1U 2BJ

Granted Westminster 25/08063/FULL Full Planning Permission Application

Works: Extension Loft or dormer

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

Proposal

Erection of rear extension from lower ground to 1st floor including new plant enclosure with associated plant, green roof and terraces spaces; repairs throughout including entrance steps, paving stones, stairs, plasterwork and floors; damp proofing to vaults and lower ground floor; fire works to doors and floors to improve compartmentalisation; internal configuration including removal of modern partitions to form new WC, tea points and shower room; insulation to roof and lower ground floor walls and floor; and new rooflights and CCTV. (Linked with 25/08064/LBC)

As published by the council, reference 25/08063/FULL

Application record

Reference
25/08063/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
5 Nov 2025
Validated
5 Nov 2025
Decided
17 Jun 2026
Ward
Marylebone
Decision by
Delegated Decision
Postcode
W1U 2BJ

Site history

Applications at this address on the Westminster register

This site has had 11 applications since 2025: 2 approved, 0 refused.

  • 26/06525/ADFULL Decided

    8 Bentinck Street London W1U 2BJ

    Details of the design of new doors, external balustrades, railings and staircases pursuant to discharge of Condition 9 (b) and (c) of Full Planning Permission dated 17 June 2026 (RN: 25/08063/FULL).

    Submitted 23 Sep 2026
  • 26/06526/ADLBC Decided

    8 Bentinck Street London W1U 2BJ

    Details of detailed design of new doors, external balustrades, railings and staircases pursuant to part condition 4(b) and (c) of listed building consent dated 17 June 2026 (RN: 25/08064/LBC)

    Submitted 23 Sep 2026
  • 26/04745/ADLBC Decided

    8 Bentinck Street London W1U 2BJ

    Details of external envelope design of new extension pursuant to Condition 4a of listed building consent dated 17 June 2026 (RN: 25/08064/LBC)

    Submitted 16 Jul 2026
  • 26/04758/ADFULL Decided

    8 Bentinck Street London W1U 2BJ

    Details of external envelope design of new extension pursuant to Condition 9a of planning permission dated 17 June 2026 (RN: 25/08063/FULL)

    Submitted 16 Jul 2026
  • 26/04437/ADFULL Awaiting decision

    8 Bentinck Street London W1U 2BJ

    Details of a sample panel of new brickwork pursuant to Condition 8 of planning permission dated 17th June 2026 (RN:25/08063/FULL). [Linked to 26/04438/ADLBC]

    Submitted 3 Jul 2026
  • 26/04438/ADLBC Awaiting decision

    8 Bentinck Street London W1U 2BJ

    Details of a sample panel of new brickwork pursuant to Condition 3 of listed building consent dated 17th June 2026 (RN: 25/08064/LBC). [Linked to 26/04437/ADFULL]

    Submitted 3 Jul 2026
  • 26/03531/ADLBC Awaiting decision

    8 Bentinck Street London W1U 2BJ

    Detailed information about the overall external envelope design of the new extension (detailed elevations and sections at 1:20) pursuant to condition 4 (A) of planning permission dated 17th September 2025 (RN:25/02408/LBC)

    Submitted 29 May 2026 Conditions
  • 26/03525/ADFULL Awaiting decision

    8 Bentinck Street London W1U 2BJ

    Detailed information about the overall external envelope design of the new extension (detailed elevations and sections at 1:20) pursuant to condition 4 (A) of planning permission dated 17th September 2025 (RN:25/02407/FULL)

    Submitted 29 May 2026 Full applications
  • 26/02892/ADFULL Awaiting decision

    8 Bentinck Street London W1U 2BJ

    Details of a sample panel of new brickwork pursuant to condition 8 of planning permission dated 17th September 2025 (RN:25/02407/FULL)

    Submitted 1 May 2026 Full applications
  • 25/08064/LBC Granted

    8 Bentinck Street London W1U 2BJ

    Erection of rear extension from lower ground to 1st floor including new plant enclosure with associated plant, green roof and terraces spaces; repairs throughout including entrance steps, paving stones, stairs, plasterwork and floors; damp proofing to vaults and lower ground floor; fire works to doors and floors to improve compartmentalisation; internal configuration including removal of modern partitions to form new WC, tea points and shower room; insulation to roof and lower ground floor walls and floor; and new rooflights and CCTV. (Linked with 25/08063/FULL)

    Decided 17 Jun 2026 Heritage and listed buildings

Timeline

Dates from the published record

  1. 5 Nov 2025

    Received by Westminster

  2. 17 Jun 2026

    Decision issued: Application Permitted

  3. 29 Sep 2026

    Added to PlanIndex

Cases linked to this one on the register

2 later applications on the register refer to this one:

  • 26/06525/ADFULL Decided

    8 Bentinck Street London W1U 2BJ

    Details of the design of new doors, external balustrades, railings and staircases pursuant to discharge of Condition 9 (b) and (c) of Full Planning Permission dated 17 June 2026 (RN: 25/08063/FULL).

    Submitted 23 Sep 2026
  • 25/08064/LBC Granted

    8 Bentinck Street London W1U 2BJ

    Erection of rear extension from lower ground to 1st floor including new plant enclosure with associated plant, green roof and terraces spaces; repairs throughout including entrance steps, paving stones, stairs, plasterwork and floors; damp proofing to vaults and lower ground floor; fire works to doors and floors to improve compartmentalisation; internal configuration including removal of modern partitions to form new WC, tea points and shower room; insulation to roof and lower ground floor walls and floor; and new rooflights and CCTV. (Linked with 25/08063/FULL)

    Decided 17 Jun 2026 Heritage and listed buildings

Who's behind it

Company information only, from the register and Companies House

Howard de Walden Estates Limited Agent, a developer registered in London

Active · incorporated 1963 · London

37 applications on PlanIndex · 91% granted

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

See their track record

Documents

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

42 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 17 June 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 0.3 miles

  • 8 Bentinck Street London W1U 2BJ

    25/08064/LBC Submitted 5 Nov 2025 50 yards away

    Erection of rear extension from lower ground to 1st floor including new plant enclosure with associated plant, green roof and terraces spaces; repairs throughout including entrance steps, paving stones, stairs, plasterwork and floors; damp proofing to vaults and lower ground floor; fire works to doors and floors to improve compartmentalisation; internal configuration including removal of modern partitions to form new WC, tea points and shower room; insulation to roof and lower ground floor walls and floor; and new rooflights and CCTV. (Linked with 25/08063/FULL)

    Granted Heritage and listed buildings Extension Loft or dormer 36 docs

  • 8 Bentinck Street London W1U 2BJ

    26/03531/ADLBC Submitted 29 May 2026 50 yards away

    89% historically approved · decision due ~24 Jul

    Detailed information about the overall external envelope design of the new extension (detailed elevations and sections at 1:20) pursuant to condition 4 (A) of planning permission dated 17th September 2025 (RN:25/02408/LBC)

    Awaiting decision Conditions Extension 7 docs

  • 8 Bentinck Street London W1U 2BJ

    26/03525/ADFULL Submitted 29 May 2026 50 yards away

    88% historically approved · decision due ~24 Jul

    Detailed information about the overall external envelope design of the new extension (detailed elevations and sections at 1:20) pursuant to condition 4 (A) of planning permission dated 17th September 2025 (RN:25/02407/FULL)

    Awaiting decision Full applications Extension 7 docs

  • 8 Bentinck Street London W1U 2BJ

    26/02892/ADFULL Submitted 1 May 2026 50 yards away

    88% historically approved · decision due ~26 Jun

    Details of a sample panel of new brickwork pursuant to condition 8 of planning permission dated 17th September 2025 (RN:25/02407/FULL)

    Awaiting decision Full applications 2 docs

  • 8 Bentinck Street London W1U 2BJ

    26/04437/ADFULL Submitted 3 Jul 2026 50 yards away

    89% historically approved · decision due ~28 Aug

    Details of a sample panel of new brickwork pursuant to Condition 8 of planning permission dated 17th June 2026 (RN:25/08063/FULL). [Linked to 26/04438/ADLBC]

    Awaiting decision

  • 8 Bentinck Street London W1U 2BJ

    26/06525/ADFULL Submitted 23 Sep 2026 50 yards away

    89% historically approved · decision due ~18 Nov

    Details of the design of new doors, external balustrades, railings and staircases pursuant to discharge of Condition 9 (b) and (c) of Full Planning Permission dated 17 June 2026 (RN: 25/08063/FULL).

    Decided

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