4 Blenheim Road London NW8 0LU

1. 25 Feb 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 22 April 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 91 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 49 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.

• 10 Blenheim Road London NW8 0LU

  25/07275/ADFULL Submitted 8 Oct 2025 50 yards away

  Details of Code of Construction Practice pursuant to condition 19 of planning permission dated 8th June 2022 (RN:21/05522/FULL)

  Granted Full applications 6 docs

• 9 Blenheim Road London NW8 0LU

  26/01946/ADFULL Submitted 25 Mar 2026 50 yards away

  88% historically approved · decision due ~20 May

  Details of the ways in which you will protect the trees which you are keeping, as shown on drawing 02.010 pursuant to condition 8 of planning permission dated 19th March 2026 (RN:25/08190).

  Awaiting decision Full applications Trees 6 docs

• 3 Blenheim Road London NW8 0LU

  26/03113/ADFULL Submitted 12 May 2026 50 yards away

  88% historically approved · decision due ~7 Jul

  Details of the ways in which you will protect the trees which you are keeping, as shown on drawing Barrell Plan Ref: 18215-1 pursuant to condition 10 of planning permission dated 18th January 2024 (RN:22/04886/FULL)

  Awaiting decision Full applications Trees 10 docs

• 3 Blenheim Road London NW8 0LU

  26/05863/ADFULL Submitted 26 Aug 2026 50 yards away

  89% historically approved · decision due ~21 Oct

  Details of Trees pursuant to Condition 10 of planning permission 18 January 2024 (RN:22/04886/FULL)

  Awaiting decision Trees

• 3 Blenheim Road London NW8 0LU

  26/05589/LBC Submitted 17 Aug 2026 50 yards away

  90% historically approved · decision due ~12 Oct

  Excavation of single-storey basement extension with lightwells to front and rear gardens; Erection of single-storey extension to rear and three-storey extension to side; Formation of door to rear at lower ground floor level; Landscaping works; and associated external alterations; Internal alterations, including changes to planform and replacement of fireplace at lower-ground floor level.

  Decided Heritage and listed buildings Extension
  Small domestic

• 3 Blenheim Road London NW8 0LU

  26/05798/NMA Submitted 24 Aug 2026 50 yards away

  93% historically approved · decision due ~19 Oct

  Amendments to planning permission dated 18th January 2024 (RN:22/04886/FULL) for Excavation of single-storey basement extension with lightwells to front and rear gardens; Erection of single-storey extension to rear and three-storey extension to side; Formation of door to rear at lower ground floor level; Landscaping works; and associated external alterations. Namely, minor adjustment to rooflight position.

  Decided Amendments Extension Loft or dormer
  Small domestic

• 26/07391/TCA Awaiting decision

  47 Carlton Hill London NW8 0EL

  General maintenance works unless otherwise stated: Front Garden: T1: Malus: Approximately 5.00m. Reduce crown by approximately 1.20m, reducing protruding branches back into the main crown structure. Thin crown density by up to 20%. Ensure an approximate 0.70m clearance of the lamp post. T2: Winter Flowering Cherry: Approximately 5.00m: Reduce crown by up to approximately 1.00m. Thin crown density by 15%. Remove dead wood. Rear Garden: T2: Magnolia - (smaller tree): Approximately 6.00m. Remove one large dead stem. Remove any dead wood or dying branches within the main crown structure. T3: Mature Cherry - (remaining stem): Approximately 7.00m. This tree is now completely dead. Fell to ground level. T4: Bay - (on rear boundary): Approximately 4.00m. This tree is in quite poor condition. Section fell to ground level. T5: Mature Bay - (growing within the curtilage of 40 Ryders Terrace & overhanging 47 Carlton Hill): Approximately 5.00m. Reducing the overhang of this tree will increase space and light levels at No.47. Reduce lateral and sublateral branches overhanging No.47 by up to approximately 1.25m back to as near to the boundary. Control encroachment.

  Received 29 Oct, published by the council 1 Nov 2026 Trees
• 26/07385/TCA Awaiting decision

  Garden Hall Of Residence Imperial College 10 - 12 Princes Gardens London SW7 1ND

  T238 & T239 - Arbutus unedo (Strawberry Tree): Reduce crown by specified extent - height and branch length by up to approximately 2.5m to allow cctv camera to have clear site of entry point for safety, as there a safe guarding issue for student accommodation. Pruning should be back at previous pollard points and at suitable growth points.

  Received 29 Oct, published by the council 2 Nov 2026 Trees
• 26/07365/TCA Awaiting decision

  40 Warrington Crescent London W9 1EL

  T1 -Paulownia reduce laterals by 1m from tips and height by .5m to give more light to garden area below.

  Received 28 Oct, published by the council 1 Nov 2026 Trees
• 26/07378/TCA Awaiting decision

  51 Springfield Road London NW8 0QJ

  T1: Magnolia (8m): Crown reduce by 1m and crown thin by 15% to keep tree at a size suitable for its location and as part of regular maintenance T2: Ginkgo (9m): Reduce height by 2m to keep tree at a size suitable for its location and as part of regular maintenance

  Received 28 Oct, published by the council 1 Nov 2026 Trees
• 26/07383/TCA Awaiting decision

  32 Ashworth Road W9 1JY

  t1 sycamore reduce back to most recent reduction points . last pruned 3-4 years ago t 2 & 3 ash tree as above on going maintenence . Light issues

  Received 28 Oct, published by the council 1 Nov 2026 Trees