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Planning application

11 Chesterfield Street London W1J 5JN

Granted Westminster 25/09329/FULL Full Planning Permission Application

Works: Extension Roofing

Relates to 25/09330/LBC

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

Proposal

Rear extension at ground and lower ground floor, rear outrigger extension from ground to second floor, roof alterations and internal alterations and new plant. [Linked to 25/09330/LBC]

As published by the council, reference 25/09329/FULL

Application record

Reference
25/09329/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
23 Dec 2025
Validated
20 Feb 2026
Decided
1 Jun 2026
Ward
West End
Decision by
Delegated Decision
Postcode
W1J 5JN

Site history

Applications at this address on the Westminster register

This site has had 5 applications since 2025: 2 approved, 0 refused.

  • 26/03731/ADLBC Awaiting decision

    11 Chesterfield Street London W1J 5JN

    Details of amended plans and elevations to show the new extension at rear ground floor level more closely integrated with the architectural character and design of the building pursuant to condition 6 of listed building consent dated 01 June 2026 (RN: 25/09330/LBC) [Linked to 26/03679/ADFULL]

    Submitted 5 Jun 2026 Conditions
  • 26/03679/ADFULL Awaiting decision

    11 Chesterfield Street London W1J 5JN

    Details of amended plans and elevations to show the new extension at rear ground floor level more closely integrated with the architectural character and design of the building pursuant to condition 7 of planning permission dated 01 June 2026 (RN: 25/09329/FULL) [Linked to 26/03731/ADLBC]

    Submitted 5 Jun 2026 Full applications
  • 26/02482/LBC Awaiting decision

    11 Chesterfield Street London W1J 5JN

    Removal and replacement of existing stair case from Lower Ground floor to Fifth Floor.

    Submitted 15 Apr 2026 Heritage and listed buildings
  • 25/09330/LBC Granted

    11 Chesterfield Street London W1J 5JN

    Rear extension at ground and lower ground floor, rear outrigger extension from ground to second floor, roof alterations and internal alterations and new plant. [Linked to 25/09329/FULL]

    Decided 1 Jun 2026 Heritage and listed buildings

Timeline

Dates from the published record

  1. 23 Dec 2025

    Received by Westminster

  2. 20 Feb 2026

    Validated

    Checked as complete and ready for consideration.

  3. 1 Jun 2026

    Decision issued: Application Permitted

  4. 20 Jul 2026

    Added to PlanIndex

Cases linked to this one on the register

  • 25/09330/LBC Granted

    11 Chesterfield Street London W1J 5JN

    Rear extension at ground and lower ground floor, rear outrigger extension from ground to second floor, roof alterations and internal alterations and new plant. [Linked to 25/09329/FULL]

    Decided 1 Jun 2026 Heritage and listed buildings

1 later application on the register refers to this one:

  • 25/09330/LBC Granted

    11 Chesterfield Street London W1J 5JN

    Rear extension at ground and lower ground floor, rear outrigger extension from ground to second floor, roof alterations and internal alterations and new plant. [Linked to 25/09329/FULL]

    Decided 1 Jun 2026 Heritage and listed buildings

Who's behind it

Company information only, from the register and Companies House

Holloway and Holloway Architects Agent, an architecture practice registered in Maidenhead

Active · incorporated 2021 · Maidenhead

6 applications on PlanIndex · across 2 councils

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

9 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 1 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

  • 11 Chesterfield Street London W1J 5JN

    25/09330/LBC Submitted 23 Dec 2025 50 yards away

    Rear extension at ground and lower ground floor, rear outrigger extension from ground to second floor, roof alterations and internal alterations and new plant. [Linked to 25/09329/FULL]

    Granted Heritage and listed buildings Extension Roofing 7 docs

  • 12 Chesterfield Street London W1J 5JN

    26/02811/FULL Submitted 28 Apr 2026 50 yards away

    88% historically approved · decision due ~23 Jun

    Rectification of unauthorised stripout works; exterior works including replacement of tiling, addition of cast iron pipework, installation of pergola to garden, alterations to approved design of first floor rear terrace; alteration to basement floorplan layout; and installation of floor insulation. [Linked to 26/02812/LBC]

    Awaiting decision Full applications 1 doc

  • 12 Chesterfield Street London W1J 5JN

    26/02812/LBC Submitted 28 Apr 2026 50 yards away

    90% historically approved · decision due ~23 Jun

    Rectification of unauthorised stripout works; exterior works including replacement of tiling, addition of cast iron pipework, installation of pergola to garden, alterations to approved design of first floor rear terrace; alteration to basement floorplan layout; and installation of floor insulation. [Linked to 26/02811/FULL]

    Awaiting decision Heritage and listed buildings 64 docs

  • 12 Chesterfield Street London W1J 5JN

    25/06419/ADLBC Submitted 1 Sep 2025 50 yards away

    Drawings and details pursuant to condition 3 (extent of demolition and associated works to main roof level), 5 (details related to installation of internal insulation), 7 (works to internal timber joinery and plasterwork), 9 (details of internal staircase balustrading) & 10 (internal pipework in association with air conditioning equipment) of listed building consent dated 21st October 2024 (RN:24/04555/LBC)

    Granted Conditions Demolition 41 docs

  • 12 Chesterfield Street London W1J 5JN

    25/06201/ADFULL Submitted 1 Sep 2025 50 yards away

    Drawings and details pursuant to condition 8 (extent of demolition and associated works to main roof level) of planning permission dated 21st October 2024 (RN: 24/04554/FULL)

    Granted Full applications Demolition 41 docs

  • 11 Chesterfield Street London W1J 5JN

    26/02482/LBC Submitted 15 Apr 2026 50 yards away

    90% historically approved · decision due ~10 Jun

    Removal and replacement of existing stair case from Lower Ground floor to Fifth Floor.

    Awaiting decision Heritage and listed buildings 4 docs

In Westminster

  • 26/07528/FULL Awaiting decision

    69 Eaton Place London SW1X 8DF

    Installation of new cast iron water pipe on rear courtyard elevation. (Linked with 26/07529/LBC)

    Received 5 Nov, published by the council 6 Nov 2026 Full applications
  • 26/05200/FULL Decided

    1 The Court House 165 Seymour Place London W1H 4PU

    Installation of waterproofing system to the existing lead flat roofs

    Received 3 Aug, published by the council 28 Aug 2026 Full applications
  • 26/07521/FULL Awaiting decision

    Flat 18 Harlequin Court 20 Tavistock Street London WC2E 7NZ

    Installation of one external condenser unit

    Received 4 Nov, published by the council 6 Nov 2026 Full applications
  • 26/07508/FULL Awaiting decision

    Buckingham Palace The Mall London SW1A 1AA

    Replacement of existing security lighting to the Buckingham Palace Forecourt with 80 compact LED spotlights installed within the lantern clusters across 10 principal piers, with associated concealed cabling and reversible fixings. (Linked with 26/07509/LBC)

    Received 4 Nov, published by the council 5 Nov 2026 Full applications
  • 26/07472/FULL Awaiting decision

    Flat 3 82 New Cavendish Street London W1G 9TA

    Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07473/LBC)

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