31 Sefton Avenue London NW7 3QB

1. 19 Dec 2025

   Received by Barnet

2. 5 Jan 2026

   Decision issued: Approve

3. 10 Aug 2026

   Added to PlanIndex

Barnet granted permission on 5 January 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.

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

• 29 Sefton Avenue London NW7 3QB

  26/0580/192 Submitted 16 Feb 2026 50 yards away

  Roof extension involving removal of the existing side and rear dormer window and new hip to gable, rear dormer window, 3no. front facing rooflights and new side gable window. Demolition of the existing chimney. Single storey front porch extension. Demolition of the existing garage. Alterations to the existing driveway including removal of side boundary wall

  Granted Lawful development Extension Loft or dormer +2 15 docs
  Small domestic

• 29 Sefton Avenue London NW7 3QB

  25/5133/192 Submitted 22 Dec 2025 50 yards away

  Roof extension involving removal of the existing side and rear dormer window and new hip to gable, rear dormer window, 3no. front facing rooflights and new side gable window. Demolition of the existing chimney. Single storey front porch extension. Demolition of the existing garage. Alterations to the existing driveway including removal of side boundary wall

  Refused Lawful development Extension Loft or dormer +2 17 docs
  Small domestic

• 16 Sefton Avenue London NW7 3QD

  26/3511/PNH Submitted 28 Sep 2026 50 yards away

  56% historically approved · decision due ~23 Nov

  Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.20 metres and eaves height of 3.00 metres.

  Awaiting decision Prior approval Extension
  Small domestic

• 63 Sefton Avenue London NW7 3QE

  26/2326/PNH Submitted 19 Jun 2026 100 yards away

  56% historically approved · decision due ~14 Aug

  Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 4.00 metres and eaves height of 2.50 metres.

  Awaiting decision Prior approval Extension 11 docs
  Small domestic

• 63 Sefton Avenue London NW7 3QE

  26/1690/PNH Submitted 6 May 2026 150 yards away

  Single storey rear extension with a proposed maximum depth of 6.00 metres, maximum height of 4.00 metres and an eaves height of 2.40m

  Refused Prior approval Extension 12 docs
  Small domestic

• 63 Sefton Avenue London NW7 3QE

  26/0597/192 Submitted 16 Feb 2026 150 yards away

  Roof extension involving hip to gable, rear dormer window, 2no. front facing rooflights and new side gable window

  Granted Lawful development Extension Loft or dormer +1 11 docs

• 26/3776/NMA Awaiting decision

  2 Beechworth Close London NW3 7UT

  Non-material amendments to planning permission reference 24/4827/HSE dated 21/01/25 for 'New front boundary walls and access gates. New fencing with associated landscaping.' Amendments include changes to front boundary wall and fences and landscaping

  Received 19 Oct, published by the council 21 Oct 2026 Amendments
• 26/3775/NMA Awaiting decision

  2 Beechworth Close London NW3 7UT

  Non-material amendments to planning permission reference 24/0743/HSE dated 20/05/24 for 'Part single, part two-storey side and rear extension. Single storey front infill extension. Second floor roof extension to incorporate terrace area. Alterations to the external facade and fenestration arrangement.' Changes to external finishes / materials; Addition of glass balustrade to east and south elevations of roof terrace; Removal of chimney to north elevation; Changes to fenestration; Changes to hard landscaping: Changes to internal layouts; Amendment to Design and Access Statement

  Received 19 Oct, published by the council 21 Oct 2026 Amendments
• 26/3778/NMA Awaiting decision

  Unit 1 Great North Leisure Park Chaplin Square London N12 0GL

  Non-material amendments to planning permission reference C11441AK dated 02/06/98 for 'Variation to condition 13 (Opening Hours) of planning permission ref: C11441A to enable the restaurants to be open until midnight on Mondays to Saturdays and until 11.30pm on Sundays, and to enable restaurant C to open from 7am on Mondays to Saturdays.' Amendments include changing opening hours to allow Unit 1 to open from 7:30am Monday to Sunday

  Received 19 Oct, published by the council 21 Oct 2026 Amendments
• 26/3748/NMA Awaiting decision

  80 Margaret Road Barnet EN4 9RB

  Non-material amendments to planning permission reference B/02962/13 dated 18/09/13 for 'Single storey front/side extension and single storey rear extension including new rear patio and part of its enclosure with 1.1m high timber fence and post.' Amendments include revisions to the side extension and renewal of roof coverings

  Received 16 Oct, published by the council 21 Oct 2026 Amendments
• 26/3741/NMA Awaiting decision

  8 North Square London NW11 7AA

  Non material amendment to planning permission 26/1111/HSE dated 17/09/2026 for 'Conversion of existing garage and utility room into habitable room, including raising height of roof and insertion of 1no. rooflight and replacement of existing windows on west (side) garage elevation with 1no. door and 1no. window. Insertion of 1no. rooflight to flat section of the main roof. Removal of modern external waste pipes. (Revised Design)'. Amendments includes changes to the wording of condition 3 to enable the required detail/materials to be approved before works starts on each relevant part of the development

  Received 15 Oct, published by the council 16 Oct 2026 Amendments