9 Maunsel Street London SW1P 2QL

This site has had 2 applications since 2026.

• 26/00054/FULL Awaiting decision

  9 Maunsel Street London SW1P 2QL

  Erection of a single storey rear extension at ground floor level.

  Submitted 6 Jan 2026 Full applications

1. 19 Oct 2026

   Received by Westminster

2. 21 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 14 December 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.

• 9 Maunsel Street London SW1P 2QL

  26/00054/FULL Submitted 6 Jan 2026 50 yards away

  88% historically approved · decision due ~3 Mar

  Erection of a single storey rear extension at ground floor level.

  Awaiting decision Full applications Extension 17 docs
  Small domestic

• 31 Maunsel Street London SW1P 2QN

  26/01674/FULL Submitted 16 Mar 2026 50 yards away

  88% historically approved · decision due ~1 Jul

  Installation of air conditioning unit to the rear elevation at first floor level.

  Awaiting decision Full applications 23 docs

• 31 Maunsel Street London SW1P 2QN

  22/05201/CLOPUD Submitted 31 Jul 2022 50 yards away

  Replacement of the existing single glazed ground floor casement window with a double glazed traditional sash unit to match No. 32 Maunsel Street.

  Granted Lawful development Windows or glazing 9 docs

• 31 Maunsel Street London SW1P 2QN

  26/00345/FULL Submitted 21 Jan 2026 50 yards away

  Erection of single-storey infill extension at rear ground-floor level with rooflight above.

  Granted Full applications Extension Loft or dormer 29 docs
  Small domestic

• Silvertown House 87 Vincent Square London SW1P 2PQ

  26/01292/FULL Submitted 2 Mar 2026 50 yards away

  88% historically approved · decision due ~6 May

  Installation of rainwater pipes with hopper heads to the south-east (Rutherford Street elevation) and north-west elevations (rear elevation) of the building.

  Awaiting decision Full applications 18 docs

• Flat 13 4 Regency Street London SW1P 4BZ

  25/09362/FULL Submitted 26 Dec 2025 50 yards away

  Replacement of existing windows using slim-profile double glazing.

  Granted Full applications Windows or glazing 24 docs

• 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