Second Floor Flat 79 Winchester Street London SW1V 4NU

1. 24 Aug 2026

   Received by Westminster

2. 1 Sep 2026

   Added to PlanIndex

3. 17 Sep 2026

   Validated

   Checked as complete and ready for consideration.

4. Decision

   Awaiting decision

   Decision expected by 12 November 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 86 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 full applications in a median of 119 days. More in our guide to how long planning decisions take.

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.

• 77 Winchester Street London SW1V 4NU

  26/03899/FULL Submitted 15 Jun 2026 50 yards away

  88% historically approved · decision due ~11 Sep

  Installation of a small roof-mounted Automatic Opening Vent (AOV) and two air source heat pump condenser units on the existing flat roof.

  Awaiting decision Full applications 13 docs

• 65 Winchester Street London SW1V 4NU

  25/09341/TPO Submitted 24 Dec 2025 50 yards away

  1 x sycamore (T1): crown reduce by approx. 2-3m; to previous most recent reduction points.

  Granted Trees 7 docs

• 54 Alderney Street London SW1V 4EX

  26/04277/TCA Submitted 29 Jun 2026 50 yards away

  100% historically approved · decision due ~24 Aug

  We planted an olive tree in the bed on the patio behind our house in 2004. It has apparently found a water source and grown much larger than originally expected. We have pruned it regularly, but it has continued to grow and is now disproportionately large for a relatively small patio area. Unfortunately, it has attracted a fungus, which produces substantial amounts of white residue and sticky deposits, which render the use of our outside space effectively impossible. We have taken advice from a tree surgeon, who has told us that without knowing the source of the infection (probably another fruit tree) it will not be feasible to eliminate this. The tree is also now too big to treat. In the light of this, we are seeking permission to cut the tree down.

  Awaiting decision Trees 6 docs

• 9 Cumberland Street London SW1V 4LS

  22/02379/CLEUD Submitted 7 Apr 2022 50 yards away

  Use of a ground floor unit as a studio flat.

  Refused Lawful development 17 docs

• 19 Cumberland Street London SW1V 4LS

  26/03499/ADFULL Submitted 28 May 2026 50 yards away

  88% historically approved · decision due ~23 Jul

  Detailed Drawings of new external windows and doors; new dormer window showing relationship with the roof and new rear extensions including materials specification pursuant to condition 4 a, b, c of planning permission dated 10th March 2026 (RN 25/08960/FULL)

  Awaiting decision Full applications Extension Loft or dormer +1 10 docs

• 19 Cumberland Street London SW1V 4LS

  26/06251/NMA Submitted 11 Sep 2026 50 yards away

  93% historically approved · decision due ~6 Nov

  Amendments to planning permission dated 20th March 2026 (RN: 25/08960/FULL) for Lower ground floor rear infill extension with terrace above, replacement of rear first floor conservatory, new roof level rear single dormer with access to third floor roof terrace, alterations to windows and external refurbishment, namely the change of conservatory gable roof to a flat GRP roof.

  Withdrawn Amendments Extension Loft or dormer +2

• 26/05984/FULL Decided

  41 Sutherland Street London SW1V 4JX

  Replacement of front, side and rear windows with double glazed timber framed sash windows and replacement of a door with a double glazed timber framed door.

  Received 2 Sep, published by the council 11 Sep 2026 Full applications
• 26/06134/FULL Decided

  Flat 10H Hyde Park Mansions Cabbell Street London NW1 5BG

  Replacement of front and rear second floor level windows with slim-profile double-glazed panels, retaining the existing window and door frames.

  Received 8 Sep, published by the council 15 Sep 2026 Full applications
• 26/07258/FULL Awaiting decision

  16A Croxley Road London W9 3HL

  Installation of air to air heat pumps to offices and bedrooms.

  Received 22 Oct, published by the council 23 Oct 2026 Full applications
• 26/07193/FULL Awaiting decision

  98 Victoria Street London SW1E 5JL

  Shopfront alterations. (Linked with 26/07194/ADV)

  Received 21 Oct, published by the council 22 Oct 2026 Full applications
• 26/07187/FULL Awaiting decision

  Ground Floor Flat 151 Portnall Road London W9 3BN

  Erection of a single storey rear extension.

  Received 21 Oct, published by the council 22 Oct 2026 Full applications