Second Floor Flat 141 Portnall Road London W9 3BN

This site has had 3 applications since 2026.

• 26/04222/FULL Awaiting decision

  Second Floor Flat 141 Portnall Road London W9 3BN

  Erection of rear dormer roof extension and formation of third floor roof terrace to second floor flat, including installation of rooflights and associated external alterations.

  Submitted 25 Jun 2026 Full applications
• 26/02106/FULL Awaiting decision

  Second Floor Flat 141 Portnall Road London W9 3BN

  Erection of rear dormer roof extension and formation of third floor roof terrace to second floor flat, including installation of rooflights.

  Submitted 30 Mar 2026 Full applications

1. 1 Oct 2026

   Received by Westminster

2. 6 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 26 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.

• Ground Floor Flat 151 Portnall Road London W9 3BN

  26/07187/FULL Submitted 21 Oct 2026 50 yards away

  88% historically approved · decision due ~16 Dec

  Erection of a single storey rear extension.

  Awaiting decision Full applications Extension
  Small domestic

• Second Floor Flat 163 Portnall Road London W9 3BN

  26/06392/ADFULL Submitted 17 Sep 2026 50 yards away

  89% historically approved · decision due ~12 Nov

  Details of photographs of the facing materials pursuant to condition 3 of planning permission dated 26 August 2026 (RN: 25/09036/FULL)

  Awaiting decision

• Second Floor Flat 141 Portnall Road London W9 3BN

  26/04222/FULL Submitted 25 Jun 2026 50 yards away

  88% historically approved · decision due ~20 Aug

  Erection of rear dormer roof extension and formation of third floor roof terrace to second floor flat, including installation of rooflights and associated external alterations.

  Awaiting decision Full applications Extension Loft or dormer

• Second Floor Flat 141 Portnall Road London W9 3BN

  26/02106/FULL Submitted 30 Mar 2026 50 yards away

  88% historically approved · decision due ~25 May

  Erection of rear dormer roof extension and formation of third floor roof terrace to second floor flat, including installation of rooflights.

  Awaiting decision Full applications Extension Loft or dormer 17 docs

• Second Floor Flat 163 Portnall Road London W9 3BN

  25/09036/FULL Submitted 12 Dec 2025 50 yards away

  88% historically approved · decision due ~17 Mar

  Refurbishment of top floor maisonette, including the demolition and rebuilding of existing rear terrace conservatory, new rear loft dormer, and new metal balustrade to existing roof terrace.

  Awaiting decision Full applications Extension Loft or dormer +1 26 docs

• 186 Ashmore Road London W9 3DE

  25/07635/FULL Submitted 21 Oct 2025 50 yards away

  Erection of single-storey full width rear extension at ground floor level; erection of rear dormer extension with front roof lights; conversion from a single dwelling house into three self-contained flats (Use Class C3); installation of refuse and cycle storage in front and rear gardens.

  Granted Full applications New dwelling Extension +1 21 docs
  Small domestic

• 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