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Planning application

8 Bentinck Street London W1U 2BJ

Awaiting decision Westminster 26/03525/ADFULL Approval of Details (Full PP)

Works: Extension

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

Proposal

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)

As published by the council, reference 26/03525/ADFULL

Application record

Reference
26/03525/ADFULL
Type
Approval of Details (Full PP)
Status
Pending
Received
29 May 2026
Validated
29 May 2026
Ward
Marylebone
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 Decided

    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
  • 26/02892/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
  • 25/08063/FULL 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 25/08064/LBC)

    Decided 17 Jun 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. 29 May 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 24 July 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 91 days over the applications it decided in the last year.

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

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 happens while it is decided

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 119 days. More in our guide to how long planning decisions take.

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

    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

    26/02892/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]

    Decided

  • 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

  • 8 Bentinck Street London W1U 2BJ

    26/04745/ADLBC Submitted 16 Jul 2026 50 yards away

    89% historically approved · decision due ~10 Sep

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

    Decided Extension

  • 8 Bentinck Street London W1U 2BJ

    26/04758/ADFULL Submitted 16 Jul 2026 50 yards away

    89% historically approved · decision due ~10 Sep

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

    Decided Extension

In Westminster

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    Received 5 Nov, published by the council 6 Nov 2026 Full applications
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    Received 3 Aug, published by the council 28 Aug 2026 Full applications
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    Received 4 Nov, published by the council 5 Nov 2026 Full applications
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    Flat 3 82 New Cavendish Street London W1G 9TA

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    Received 3 Nov, published by the council 6 Nov 2026 Full applications