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Planning application

5 Chesterfield Hill London W1J 5BL

Awaiting decision Westminster 26/04517/FULL Full Planning Permission Application

Works: Extension

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

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
Type
Full Planning Permission Application
Status
Pending
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 Awaiting decision

    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 to screen it from view.

    Submitted 18 Aug 2026 Full applications
  • 26/05385/FULL Awaiting decision

    5 Chesterfield Hill London W1J 5BL

    Extension of the existing passenger lift to serve the 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.

    Submitted 7 Aug 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. Decision

    Awaiting decision

    Decision expected by 22 September 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 66 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Interiors With Art Ltd. Agent, registered in London

Active · incorporated 2002 · London

3 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

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

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 91 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

  • 4 Chesterfield Hill London W1J 5BL

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

    86% historically approved · decision due ~25 Jun

    Repainting of the front facade brickwork in black mineral paint

    Awaiting decision Lawful development 7 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

    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

    87% 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 to screen it from view.

    Awaiting decision Full applications Windows or glazing

  • 5 Chesterfield Hill London W1J 5BL

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

    87% historically approved · decision due ~15 Oct

    Extension of the existing passenger lift to serve the 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.

    Awaiting decision Full applications Extension

In Westminster

  • 26/06295/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Installation of a new shopfront with Medication Dispensing Outlet.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06297/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Alterations to rear elevation at basement level comprising replacement window and installation of double opening door.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06294/FULL Awaiting decision

    15 Eaton Mews South London SW1W 9HP

    Installation of railings and sliding lantern light at main roof level in connection with the use of the roof as a terrace.

    Received 15 Sep, published by the council 22 Sep 2026 Full applications
  • 26/06317/FULL Awaiting decision

    124 Hamilton Terrace London NW8 9UT

    Replacement of existing first-floor sash windows to the front and rear elevations with traditionally detailed painted timber, slim-profile double-glazed sash windows. (Linked to 26/06318/LBC)

    Received 15 Sep, published by the council 22 Sep 2026 Full applications
  • 26/06273/FULL Awaiting decision

    9A Grosvenor Square London W1K 5AE

    Installation of natural Portland Stone paving to two front entrances. (Linked to 26/05473/LBC)

    Received 14 Sep, published by the council 22 Sep 2026 Full applications