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Planning application

5 Chesterfield Hill London W1J 5BL

Decided Westminster 26/04517/FULL Full applications

Works: Extension

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

Proposal

Erection of a rear extension at third and fourth floor levels

As published by the council, reference 26/04517/FULL

Application record

Reference
26/04517/FULL
Category
Full applications
Status
Decided
Received
7 Jul 2026
Validated
28 Jul 2026
Ward
West End
Postcode
W1J 5BL

Site history

Applications at this address on the Westminster register

This site has had 3 applications since 2026.

  • 26/05625/FULL Decided

    5 Chesterfield Hill London W1J 5BL

    Replacement of an existing first floor rear window with a pair of French doors within the existing opening; and installation of external air conditioning plant at roof level within an acoustic enclosure, with the adjacent parapet raised.

    Submitted 18 Aug 2026 Full applications
  • 26/05385/FULL Decided

    5 Chesterfield Hill London W1J 5BL

    Extension of existing passenger lift to serve third and fourth floors, including a lift overrun projecting approximately 1,200 mm above roof level with the adjacent parapet raised by approximately 1,200 mm to enclose it.

    Decided 19 Oct 2026 Full applications

Timeline

Dates from the published record

  1. 7 Jul 2026

    Received by Westminster

  2. 28 Jul 2026

    Validated

    Checked as complete and ready for consideration.

  3. 3 Aug 2026

    Added to PlanIndex

  4. 19 Oct 2026

    Status changed to Decided

    Previously Pending.

Documents

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

28 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

  • 4 Chesterfield Hill London W1J 5BL

    25/05095/ADFULL Submitted 22 Jul 2025 50 yards away

    Detailed drawings of the railings and security camera pursuant to Condition 11 of planning permission dated 8th August 2024 (RN:24/03734/FULL)

    Granted Full applications 9 docs

  • 4 Chesterfield Hill London W1J 5BL

    26/03774/ADFULL Submitted 9 Jun 2026 50 yards away

    89% historically approved · decision due ~4 Aug

    Samples of the facing materials you will use, including the new paving, and elevations and roof plans; pursuant to condition 10 of planning permission dated 8th August 2024 (RN 24/03734/FULL)

    Decided

  • 5 Chesterfield Hill London W1J 5BL

    26/05625/FULL Submitted 18 Aug 2026 50 yards away

    88% historically approved · decision due ~30 Oct

    Replacement of an existing first floor rear window with a pair of French doors within the existing opening; and installation of external air conditioning plant at roof level within an acoustic enclosure, with the adjacent parapet raised.

    Decided Full applications Windows or glazing

  • 5 Chesterfield Hill London W1J 5BL

    26/05385/FULL Submitted 7 Aug 2026 50 yards away

    Extension of existing passenger lift to serve third and fourth floors, including a lift overrun projecting approximately 1,200 mm above roof level with the adjacent parapet raised by approximately 1,200 mm to enclose it.

    Decided Full applications Extension

  • 4 Chesterfield Hill London W1J 5BL

    25/08360/FULL Submitted 14 Nov 2025 50 yards away

    Repainting of the front facade brickwork in black mineral paint - NOT REQUIRED

    Decided Full applications 17 docs

  • 4 Chesterfield Hill London W1J 5BL

    26/02857/CLOPUD Submitted 29 Apr 2026 50 yards away

    84% historically approved · decision due ~25 Jun

    Repainting of the front facade brickwork in black mineral paint

    Awaiting decision Lawful development 7 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