25/06104/CLEUD

1. 27 Aug 2025

   Received by Westminster

2. 12 Nov 2025

   Validated

   Checked as complete and ready for consideration.

3. 24 Nov 2025

   Decision issued: Granted subject to conditions

4. 21 Jul 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 07/00981/FULL Withdrawn

  44 Duke Street St James's London SW1Y 6DD

  Change of use of part first and second floors from office (Class B1) to four studio flats (Class C3) at first and second floor level (Land Use swap with 5-7 King Street).

  30 Jan 2007 50m away Full applications
• 08/03925/FULL Decided

  44 Duke Street St James's London SW1Y 6DD

  Use of first and second floors as two x 1 bedroom flats (Class C3)

  1 May 2008 50m away Full applications
• 26/01487/FULL Awaiting decision

  Almack House 28 King Street St James's London SW1Y 6QW

  Installation of a mechanical plant at lower ground floor and installation of two grilles to two lower ground floor windows

  9 Mar 2026 52m away Full applications
• 26/02652/FULL Awaiting decision

  4 - 5 Duke Street St James's London SW1Y 6BN

  Repairs to an entrance bridge.

  21 Apr 2026 53m away Full applications
• 22/03187/LBC Granted

  16 - 17 St James's Square London SW1Y 4LB

  Internal alterations to provide improved staff facilities, additional food preparation, rationalising various areas of plant, storage and circulation; exposing and restoring original finishes and vaulted and jack-arched ceilings.

  12 May 2022 60m away Heritage and listed buildings
• 26/03638/LBC Awaiting decision

  East India Devonshire Sports And Public Schools Club 16 St James's Square London SW1Y 4LH

  Repairs to rear entrance bridge at 4-5 Duke Street St James's and replacement of the existing marble treads and risers with Portland stone (linked to 26/02652/FULL).

  3 Jun 2026 60m away Heritage and listed buildings

• 26/04958/CLEUD Awaiting decision

  1 Sussex Square London W2 2SJ

  Use of a building as mixed use as C3 (single residential dwelling) and C1 (short-stay accommodation)

  24 Jul 2026 Lawful development
• 26/04971/CLOPUD Awaiting decision

  Flat 23 192 Emery Hill Street London SW1P 1PN

  Replacement of the existing single-glazed moving window sashes, casement panels, and balcony door leaves with slimline double-glazed timber units. The existing outer timber frames fixed into the building will be retained and will not be removed or altered. The replacement units will match the existing windows in material, design, glazing bar pattern, opening method, dimensions, and external appearance. No alterations are proposed to the building structure, external walls, openings, or window frame sizes. No new access, alterations to existing access, new streets, hardstandings, means of enclosure, or drainage works are proposed. The precise location and details of the replacement windows are shown on the accompanying drawings.

  24 Jul 2026 Lawful development
• 26/04832/CLEUD Awaiting decision

  Basement Flat 117 Kilburn Park Road London NW6 5LB

  Use or Development in respect of the detached single-storey outbuilding within the rear garden of the applicants property.

  20 Jul 2026 Lawful development
• 26/04856/CLOPUD Awaiting decision

  Flat 15 192 Emery Hill Street London SW1P 1PN

  Replacement of the existing single-glazed moving sashes, casement panels, and balcony door leafs with slimline double glazed timber units within the fully retained existing external timber frames.

  20 Jul 2026 Lawful development
• 26/04632/CLOPUD Awaiting decision

  165 Oliphant Street London W10 4EA

  Installation of solar panels to generate clean, renewable energy from sunlight and reduce reliance on grid electricity and fossil fuels.

  10 Jul 2026 Lawful development