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Planning application

26/00374/FULL

3 Carlton Gardens London SW1Y 5AA

Awaiting decision Westminster Full Planning Permission Application

Proposal

Replacement of air conditioning condenser units within new acoustic enclosures in south lightwell. (Linked to 26/00375/LBC)

As published by the council, reference 26/00374/FULL

Timeline

Dates from the published record

  1. 22 Jan 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

What happens while it is decided

The process from here

This application is with Westminster for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

About full applications applications

How this application type works

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

Nearby applications

Within 500 metres

  • 26/00375/LBC Awaiting decision

    3 Carlton Gardens London SW1Y 5AA

    Replacement of air conditioning condenser units within new acoustic enclosures in south lightwell. (Linked to 26/00374/FULL)

    22 Jan 2026 1m away Heritage and listed buildings
  • 25/05079/NMA Granted

    1 Carlton House Terrace London SW1Y 5AF

    Variation of condition 1 of planning permission dated 28 April 2021 (RN: 21/01191/FULL) which itself varied condition 1 of planning permission dated 28 August 2020 (RN: 20/04449/FULL) which itself varied condition 1 of planning permission dated 09 April 2020 (RN: 20/00755/FULL) for use of the building as a single residential dwelling (Class C3) with associated internal and external alterations including erection of a sun room with terrace at roof level, partial infill of rear lightwell at basement level and car port enclosure. NAMELY, to remove the list of approved drawings from the operative part of the decision notice of RN: 21/01191/FULL and to insert them within Condition 1.

    22 Jul 2025 25m away Amendments
  • 26/04435/TPO Awaiting decision

    3 Carlton Gardens London SW1Y 5AA

    T5 Lime - Courtyard area: Crown Reduction - To reduce the height and radial spread of the canopy by up to 3 metres, shape accordingly and remove major deadwood and trunk growth to crown break. H3 Portuguese Laurel - Hedge reduction - To reduce the height by up to 1.5 metre and to trim and shape all sides to create a more tight and compact hedge including the removal of one dead Laurel as annotated in photo. Additional bark chippings will be added to maintain moisture level to the whole hedge. To supply and plant a new Portuguesue Laurel of at least 2 metres in height. Reason for work ? General Maintenance.

    3 Jul 2026 55m away Trees
  • 25/06831/TCA Granted

    Open Space At Stirling Square Carlton Gardens London

    T415 - Platanus x hispanica (London Plane): Crown lift to 3.5m overall and 5.2m over road. T417 - Acer pseudoplatanus (Sycamore): crown lift to 3m. Prune from adjacent structure to clear all buildings/walls/roofs by 2 m. T418 - Acer pseudoplatanus (Sycamore): Prune from adjacent structure to clear all buildings/ walls/ roofs by 2 m. T420 - Acer pseudoplatanus (Sycamore): crown lift to 3m T424 - Ligustrum lucidum (Glossy Privet/Chinese Privet): crown lift to 2.5m T425 - Ligustrum lucidum (Glossy Privet/Chinese Privet): crown lift to 2.5m T426 - Ligustrum lucidum (Glossy Privet/Chinese Privet): crown lift to 2.5m T427 - Ligustrum lucidum (Glossy Privet/Chinese Privet): crown lift to 2.5m T666 - Amelanchier sp. (Snowy Mespilus): fell T1644 - Platanus x hispanica (London Plane): Crown lift to 5.2m including removal of trunk epicormic growth. T1645 - Platanus x hispanica (London Plane): Crown lift to 5.2m including removal of trunk epicormic growth. T1646 - Acer pseudoplatanus (Sycamore): Crown lift to 4m

    23 Sep 2025 68m away Trees
  • 26/02381/LBC Awaiting decision

    5 Carlton House Terrace London SW1Y 5AQ

    Refurbish the existing commercial kitchen, replacement of the existing modern kitchen equipment, over-clad the existing wall tiles and overlay the existing floor tiles, removal of a low level nib partition wall and introduce new floor gulleys connecting into existing drainage.

    10 Apr 2026 78m away Heritage and listed buildings
  • 26/04789/LBC Awaiting decision

    89 - 91 Pall Mall London SW1Y 5HS

    Installation of glass safety balustrades around the existing squash court area.

    17 Jul 2026 116m away Heritage and listed buildings

In Westminster

  • 26/04824/ADFULL Granted

    New Zealand House 80 Haymarket London SW1Y 4TE

    Detailed design and specification of new blinds to NZH based on mock-up trials on-site. pursuant to condition 32 (i) of planning permission dated 8th April 2024 (23/00571/FULL).

    20 Jul 2026 Full applications
  • 26/04829/ADFULL Granted

    New Zealand House 80 Haymarket London SW1Y 4TE

    Details of external and internal signage strategy pursuant to Condition 33(E) of planning permission dated 8th April 2024 (RN: 23/00571/FULL)

    20 Jul 2026 Full applications
  • 26/04841/ADFULL Granted

    29 Henstridge Place London NW8 6QD

    Details of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to condition 5 of planning permission dated 18th November 2025 (RN:25/06159).

    20 Jul 2026 Full applications
  • 26/04989/FULL Awaiting decision

    1 Kildare Terrace London W2 5JT

    Erection of a mansard roof extending over the main house and side wing, replacement lower ground rear extension with roof terrace above, lowering of lower ground floor slab, installation of an air source heat pump in rear garden, new front boundary treatment, and new second floor window on the north elevation.

    24 Jul 2026 Full applications
  • 26/04986/FULL Awaiting decision

    Inver Court Inverness Terrace London W2 6JB

    Replacement of combustible materials in the render facades; timber decking and plastic soffits/ fascias to terraces with non-combustible materials on the 5th and 6th floors.

    24 Jul 2026 Full applications