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Planning application

5 Chesterfield Hill London W1J 5BL

Decided Westminster 26/05625/FULL Full applications

Works: Windows or glazing

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

Proposal

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.

As published by the council, reference 26/05625/FULL

Application record

Reference
26/05625/FULL
Category
Full applications
Status
Decided
Received
18 Aug 2026
Validated
4 Sep 2026
Postcode
W1J 5BL

Site history

Applications at this address on the Westminster register

This site has had 3 applications since 2026.

  • 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
  • 26/04517/FULL Decided

    5 Chesterfield Hill London W1J 5BL

    Erection of a rear extension at third and fourth floor levels

    Submitted 7 Jul 2026 Full applications

Timeline

Dates from the published record

  1. 18 Aug 2026

    Received by Westminster

  2. 4 Sep 2026

    Validated

    Checked as complete and ready for consideration.

  3. 7 Sep 2026

    Added to PlanIndex

  4. 19 Oct 2026

    Status changed to Decided

    Previously Pending.

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

    26/05385/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

  • 5 Chesterfield Hill London W1J 5BL

    26/04517/FULL Submitted 7 Jul 2026 50 yards away

    88% historically approved · decision due ~22 Sep

    Erection of a rear extension at third and fourth floor levels

    Decided Full applications Extension 28 docs

  • 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

  • 26/05984/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
  • 26/07229/FULL Awaiting decision

    5 D'arblay Street London W1F 8DL

    Painting of the shopfront facade and alterations to the existing fixed windows to form two openable sash windows. (Linked with 26/07230/ADV)

    Received 22 Oct, published by the council 26 Oct 2026 Full applications
  • 26/07224/FULL Awaiting decision

    8 Hinde Street London W1U 3BQ

    Use of the building as an Embassy (sui generis) with reversion to Class E on cessation of occupation by the Government of the United Mexican States. Erection of a flagpole to front elevation.

    Received 22 Oct, published by the council 26 Oct 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