12 Belgrave Square London SW1X 8PN

1. 5 Nov 2025

   Received by Westminster

2. 20 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 31 December 2025, 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.

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided tree works applications in a median of 39 days. More in our guide to how long planning decisions take.

Applications for works to trees cover protected trees: consent under a tree preservation order, or six weeks notice for trees in a conservation area. More in our guide to planning application types.

• Flat 4 16 West Halkin Street London SW1X 8JL

  25/07921/FULL Submitted 31 Oct 2025 50 yards away

  Creation of terrace on flat roof and replacement of a window with a door to access the terrace.

  Withdrawn Full applications Windows or glazing 20 docs

• 15 Halkin Mews London SW1X 8JZ

  25/08082/FULL Submitted 6 Nov 2025 50 yards away

  87% historically approved · decision due ~1 Jan

  Installation of two sets of traditional-style window security bars to the existing ground floor front windows.

  Awaiting decision Full applications Windows or glazing 10 docs

• 15 Halkin Mews London SW1X 8JZ

  25/08066/LBC Submitted 5 Nov 2025 50 yards away

  90% historically approved · decision due ~1 Jan

  Installation of two sets of traditional-style window security bars to the existing ground floor front windows.

  Awaiting decision Heritage and listed buildings Windows or glazing 11 docs

• 3 Wilton Terrace London SW1X 8RR

  07/05031/TCA Submitted 7 Jun 2007 50 yards away

  1 x False Acacia (Rear): Removal. 1 x Prunus (Rear): Removal.

  Withdrawn Trees 1 doc

• Flat 3 1 Wilton Terrace London SW1X 8RR

  04/09180/FULL Submitted 19 Nov 2004 50 yards away

  Retention of new entrance door and granite cladding to steps; alterations including enlargement of window to flank wall; associated internal alterations including new flooring, partitions and replacement doors.

  Granted Full applications Windows or glazing 12 docs

• Flat 3 1 Wilton Terrace London SW1X 8RR

  04/08263/LBC Submitted 19 Oct 2004 50 yards away

  Retention of new entrance door and granite cladding to steps; alterations including enlargement of window to flank wall; associated internal alterations including new flooring, partitions and replacement doors.

  Granted Heritage and listed buildings Windows or glazing 2 docs

• 26/06333/TCA Awaiting decision

  Basement 17 Claverton Street London SW1V 3AY

  Removal of an overgrown and poor specimen Leyland cypress tree in a confined space in the rear garden of 17 Claverton Street, Sw1v 3AY. We wish to remove this tree and replace it with a semi mature Amelanchier Lamarckii which is more appropriate for the space.

  Received 16 Sep, published by the council 17 Sep 2026 Trees
• 26/06346/TPO Awaiting decision

  Crown Court 123 Park Road London NW8 7JH

  2 x lime (T1, T2): crown reduce to previous, most recent reduction points (2-2.5m), retaining furnisging growth and at least 50% of fine branch structure. 1 x London plane (T3): crown reduce to previous most recent reduction points.

  Received 16 Sep, published by the council 17 Sep 2026 Trees
• 26/06307/TCA Awaiting decision

  140 Loudoun Road London NW8 0ND

  T1 Acer reduce by cira 1.5m to suitable pruning points T2 Mature apple tree - Crown lift to 2.5 metres from the ground and cut back from the public infrastructure. T3 Magnolia grandiflora - reduce by 1.5m and cut back from building creating a clearance of 2m T4 - Apple Tree - Remove deadwood and reduce crown by 1m Reason for work: General tree maintenance

  Received 15 Sep, published by the council 17 Sep 2026 Trees
• 26/06302/TCA Awaiting decision

  Old Admiralty Building Spring Gardens London SW1A 2AH

  fell to 50mm from ground level Cherry trees in pots in courtyard (G1 - trees have extensive damage to main stems and crown)

  Received 15 Sep, published by the council 17 Sep 2026 Trees
• 26/06282/TCA Awaiting decision

  13 Randolph Crescent London W9 1DP

  T4 - Reduce magnolia crown by 0.5?1m and thin by 10-15% all around, and remove any deadwood whilst retaining furnishing growth. This is to allow more light through the canopy and maintain the crown at a manageable size.

  Received 14 Sep, published by the council 17 Sep 2026 Trees