Abercorn School 28 Abercorn Place London NW8 9XP

1. 17 Jul 2020

   Received by Westminster

2. 3 Sep 2020

   Validated

   Checked as complete and ready for consideration.

3. 24 Nov 2020

   Decision issued: Application Permitted

4. 4 Sep 2026

   Added to PlanIndex

Westminster granted permission on 24 November 2020, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

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.

• 36 Abercorn Place London NW8 9XP

  26/06956/ADFULL Submitted 12 Oct 2026 50 yards away

  89% historically approved · decision due ~15 Dec

  Detailed written and photographic specification of the materials to be used including details of samples of render and brickwork and details of the Overall external envelope design; New windows and doors and new rainwater goods, external area lighting and security fixtures, external flues to front elevation, solar PV panels pursuant to discharge of conditions 4 and 5 of planning permission dated 7th May 2026 (26/01362/FULL).

  Awaiting decision Windows or glazing

• Abercorn School 28 Abercorn Place NW8 9XP

  25/05366/ADFULL Submitted 31 Jul 2025 50 yards away

  Details of a method statement explaining the measures you will take to protect the trees on and close to the site and details of an auditable system of arboricultural site monitoring, site supervision and record keeping pursuant to condition 7 and 8 (Part 1) of planning permission dated 8th May 2025 (RN:25/00945/FULL)

  Granted Full applications Trees 12 docs

• Abercorn School 28 Abercorn Place NW8 9XP

  25/05655/ADFULL Submitted 12 Aug 2025 50 yards away

  Details of a desktop study, details of a site investigation and details of a remediation strategy pursuant to condition 6 (phase 1, 2, 3) of planning permission dated 8th May 2025 (RN:25/00945/FULL)

  Granted Full applications 9 docs

• 36 Abercorn Place NW8 9XP

  26/01362/FULL Submitted 3 Mar 2026 50 yards away

  88% historically approved · decision due ~28 Apr

  Variation of Condition 1 of planning permission dated 11 September 2025 (RN: 25/02425/FULL) for 'Excavation of basement below existing house and part of front and rear garden land with lightwells to the front and rear; partial demolition of front facade; demolition of rear extension and roof; erection of part replacement front facade, new mansard roof level; replacement fenestration to the rear elevation; and landscaping works to front and rear gardens, including plant equipment to rear'. NAMELY, to render the rear elevation, amend rear fenestration and changes to detailed design of front elevation.

  Awaiting decision Full applications Extension Loft or dormer +2 9 docs

• 36 Abercorn Place NW8 9XP

  25/08855/NMA Submitted 5 Dec 2025 50 yards away

  Amendments to planning permission dated 11 September 2025 (RN: 25/02425/FULL) for Excavation of basement below existing house and part of front and rear garden land with lightwells to the front and rear; partial demolition of front facade; demolition of rear extension and roof; erection of part replacement front facade, new mansard roof level; replacement fenestration to the rear elevation; and landscaping works to front and rear gardens, including plant equipment to rear. Namely, to render the rear elevation to match the front facade, amend detailed design of the rear first floor windows, replace the approved rear windows at ground floor level with doors, reposition the rear first floor windows, adjust the rear bays and architectural alteratons to the front elevation.

  Refused Amendments Extension Loft or dormer +2 17 docs

• Abercorn School 28 Abercorn Place NW8 9XP

  26/01000/TPO Submitted 17 Feb 2026 50 yards away

  T1 Horse chestnut: pruning of single root approximately 65mm diameter at the boundary of the building.

  Granted Trees 8 docs

• 26/06901/TPO Decided

  110 Maida Vale London W9 1PS

  T3 Walnut: Raise crown over the beds by approximately 2m and clear Cherry. Reduce remaining crown back to previous and most recent reduction points up to approximately 1.5m. Thin crown density evenly throughout by 20%. T4 Walnut: Reduce back to previous and most recent points of reduction up to approximately 1.5m. Thin crown density by 20%. Remove dead wood. T5 Fig: Reduce lateral growth hard back garden side by approximately 1.25-1.5m. Reduce crown height back to previous points of reduction (approximately 1.4m). T7 Mulberry: Reduce crown road side by approximately 1.2m. Raise crown road side by approximately 1.2m. Thin crown density throughout by 20%. Reduce remaining over extended branches which protrude from the main crown structure back in to the main crown.

  Received 8 Oct, published by the council 12 Oct 2026 Trees
• 26/07241/TCA Awaiting decision

  11 Castellain Road London W9 1EY

  T1 - Mature Sycamore- Carry out a crown reduction of up to 3m in height and up to 2m laterally back to the previous, most recent established pruning points, retaining a balanced crown structure and natural form. Pruning cuts will be made to suitable growth points. T2 - Field Maple- Undertake a crown reduction of approx 2m in height and 1.5m laterally appropriate to the tree?s condition, structure and previous pruning history, whilst retaining a natural crown shape and viable growth points. Where suitable, reduce the crown to the previous reduction points, pruning back to appropriate secondary branches or growth points to create a balanced, natural-flowing canopy outline. As an Arboricultural Approved contractor (#AC2626), all works will be undertaken in accordance with BS39982010 - Tree Work - Recommendations. Reason for work: General tree maintenance

  Received 22 Oct, published by the council 23 Oct 2026 Trees
• 26/07207/TCA Awaiting decision

  2 Motcomb Street London SW1X 8JU

  T1, T2 and T3 - Bay Laurel reduce height by approx 2-3m from tips and shorten lateral growth by 1m from tips.

  Received 21 Oct, published by the council 23 Oct 2026 Trees
• 26/07205/TPO Awaiting decision

  Garden Enclosure Portman Square London W1H 6LJ

  T8 - CHERRY - - End-weight reduction - Specified extent Reduce crown of NE stem by 1 .5m, reducing load on decay canker and subsequent risk of failure. T22 - ACER - Prune from adjacent structure to clear lamp column by 1 meter T24 - CHERRY - - Lift low canopy - Pedestrian clearance to 4.5m over road. T37 - CHERRY - Remove faulted limb / limbs Remove lowest south facing branch to stem. G73 - CERCIS CANADENSIS - Lift low canopy - Pedestrian clearance to 2.5 m over footpath.

  Received 21 Oct, published by the council 23 Oct 2026 Trees
• 26/07220/TCA Awaiting decision

  Overseas House Park Place London SW1A 1LR

  T1 Betula jacquemontii- Fell- This tree has out grown its position in the small herbacious border and garden, it is blocking light and the roots are suppressing the growth of other ornamental shrubs and trees- The owner would like to remove it before it gets any larger- a poor choice for such a small garden, also blocking the view in to Green park. T2 Prunus sp.- Fell As above , in addition the trees lower branches have been removed and now has impaired form, is being suppressed by the London Plane tree and it has very few blossoms in the spring. If nessessary the tree owner would be prepared to replace the two trees with a more suitable tree

  Received 21 Oct, published by the council 23 Oct 2026 Trees