3 Southwold Mansions Widley Road London W9 2LE

1. 21 Aug 2025

   Received by Westminster

2. 22 Jul 2026

   Validated

   Checked as complete and ready for consideration.

3. 10 Sep 2026

   Decision issued: Application Permitted

4. 29 Sep 2026

   Added to PlanIndex

Westminster granted permission on 10 September 2026, 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.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 1 Southwold Mansions Widley Road London W9 2LE

  25/07859/FULL Submitted 30 Oct 2025 50 yards away

  Installation of replacement front, rear and side windows with double glazed timber units at ground floor level.

  Granted Full applications Windows or glazing 14 docs

• Southwold Mansions Widley Road London W9 2LE

  25/06781/FULL Submitted 22 Sep 2025 50 yards away

  Replacement of top floor (Flat 10) front and rear windows with double glazed sash and casement windows.

  Granted Full applications Windows or glazing 16 docs

• 9 Southwold Mansions Widley Road London W9 2LE

  26/04526/FULL Submitted 8 Jul 2026 50 yards away

  88% historically approved · decision due ~21 Sep

  Replacement of existing windows with new timber framed double glazed units.

  Decided Full applications Windows or glazing 8 docs

• 115 Elgin Avenue London W9 2NR

  26/02697/TCA Submitted 23 Apr 2026 50 yards away

  100% historically approved · decision due ~18 Jun

  T1: Sycamore (Acer pseudoplatanus) - Carry out a cyclical crown management operation by removing approximately 7-8 years of regrowth back to the previous established pollard points (re-pollarding). The works will reinstate the original pollard framework and manage overall crown size. All pruning cuts will be made at appropriate positions to maintain structural integrity and promote healthy, sustainable regrowth. The works will be undertaken sympathetically to retain crown continuity and minimise physiological stress. All works to be undertaken by competent arborists, with appropriate safety measures in place. All arisings to be cleared and removed from site on completion. All works to be carried out in accordance with BS39982010 - Tree Work Recommendations. Reason for works: General tree maintenance - To allow more light into the property

  Awaiting decision Trees 7 docs

• 9 Cleveland Mansions Widley Road London W9 2LA

  26/02963/FULL Submitted 6 May 2026 50 yards away

  88% historically approved · decision due ~1 Jul

  Replacement windows to the fourth level flat.

  Awaiting decision Full applications Windows or glazing 8 docs

• Westside Court 107 - 113 Elgin Avenue London W9 2NP

  26/05284/TPO Submitted 4 Aug 2026 50 yards away

  100% historically approved · decision due ~29 Sep

  1. Reduce the height of the horse chestnut tree by 30%, reduce the sides by 30%, crown lift to crown break. 2. Reduce Laurel tree (no pear tree on site) by 30%, reduce the sides by 30% crown lift to crown break

  Awaiting decision Trees

• 26/06621/FULL Awaiting decision

  2 Dorset Street London W1U 4EE

  Replacement of four existing external condenser units and four internal air-conditioning units and acoustic enclosure. (Linked with 26/06436/LBC)

  28 Sep 2026 Full applications
• 26/06583/FULL Awaiting decision

  7 Octavia Mews London W9 3LQ

  Variation of condition 1 of planning permission dated 1 May 2026 (RN 26/01567/FULL) for the erection of single storey ground floor rear extension with terrace above. Associated works. NAMELY, Ground floor window to be retained as existing and patio doors proposed to access terrace at first floor level.

  Received 24 Sep, published by the council 29 Sep 2026 Full applications
• 26/06566/FULL Awaiting decision

  105 Eaton Square London SW1W 9AA

  Removal of brick pier between two garage openings and introduction of new fanlights on rear elevation (105 Eccleston Mews) (Linked to 26/06567/LBC)

  Received 23 Sep, published by the council 28 Sep 2026 Full applications
• 26/06505/FULL Awaiting decision

  Bryan Court Seymour Place London W1H 2NE

  Retention of a Cyclehoop Cargo Bikehangar providing secure storage for two cargo cycles on the private passageway adjacent to Bryan Court, 68 Seymour Place, and its repositioning approximately 0.5m towards Seymour Place to facilitate the closure of the existing gates behind it (part retrospective)

  Received 23 Sep, published by the council 30 Sep 2026 Full applications
• 26/06530/FULL Awaiting decision

  Darley House 27 Gilbert Street London W1K 5HQ

  Installation of an automatically opening smoke vent (AOV) on the main flat roof and associated opening above 4th Floor landing. (Linked with 26/06531/LBC)

  Received 23 Sep, published by the council 30 Sep 2026 Full applications