63 Sefton Avenue London NW7 3QE

This site has had 5 applications since 2026: 1 approved, 2 refused.

• 26/2326/PNH Awaiting decision

  63 Sefton Avenue London NW7 3QE

  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.

  Submitted 19 Jun 2026 Prior approval
• 26/1001/PNH Refused

  63 Sefton Avenue London NW7 3QE

  Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 4.00 metres and eaves height of 2.70 metres

  Decided 20 Apr 2026 Prior approval
• 26/0602/PNH Refused

  63 Sefton Avenue London NW7 3QE

  Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.50 metres and eaves height of 3.00 metres

  Decided 31 Mar 2026 Prior approval
• 26/0597/192 Granted

  63 Sefton Avenue London NW7 3QE

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

  Decided 2 Mar 2026 Lawful development

1. 6 May 2026

   Received by Barnet

2. 25 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 1 July 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Barnet took a median of 43 days over the applications it decided in the last year.

This application is with Barnet for determination, against a statutory target of eight weeks. Over the last year Barnet decided prior approval applications in a median of 36 days. More in our guide to how long planning decisions take.

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

• 63 Sefton Avenue London NW7 3QE

  26/0597/192 Submitted 16 Feb 2026 0m 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

• 63 Sefton Avenue London NW7 3QE

  26/1001/PNH Submitted 16 Mar 2026 6m away

  Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 4.00 metres and eaves height of 2.70 metres

  Refused Prior approval Extension 14 docs
  Small domestic

• 63 Sefton Avenue London NW7 3QE

  26/0602/PNH Submitted 17 Feb 2026 7m away

  Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.50 metres and eaves height of 3.00 metres

  Refused Prior approval Extension 13 docs
  Small domestic

• 63 Sefton Avenue London NW7 3QE

  26/2326/PNH Submitted 19 Jun 2026 50m away

  58% 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

• 36 Delamere Gardens London NW7 3EB

  25/3683/HSE Submitted 8 Sep 2025 69m away

  77% historically approved · decision due ~3 Nov

  Single storey side/rear extension with 2no. rooflights

  Awaiting decision Householder Extension Loft or dormer 14 docs
  Small domestic

• 3 Delamere Gardens London NW7 3EA

  26/2813/HSE Submitted 30 Jul 2026 89m away

  77% historically approved · decision due ~24 Sep

  Single storey front extension incorporating a front porch, raising existing side extension floor level to match main house level, new roof with increased height to the side extension and 2no. rooflights, single storey rear extension with 4no. rooflights with new patio area, access steps to garden and hard and soft landscaping. Changes to fenestration: replacement of existing windows

  Awaiting decision Householder Extension Loft or dormer +2
  Small domestic

• 26/3407/PNH Awaiting decision

  12 Ingleway London N12 0QJ

  Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 2.75 metres and eaves height of 2.75 metres, following demolition of the existing conservatory.

  17 Sep 2026 Prior approval
• 26/3322/PNH Awaiting decision

  35 Aldridge Avenue Edgware HA8 8TA

  Single storey rear extension with a proposed depth of 6 metres, maximum height of 3 metres and eaves height of 3 metres.

  11 Sep 2026 Prior approval
• 26/3337/PNH Awaiting decision

  103 Brunswick Park Road London N11 1JT

  Single storey rear extension with a proposed depth of 6 metres, maximum height of 4 metres and eaves height of 3 metres. Following demolition of the existing garage.

  11 Sep 2026 Prior approval
• 26/3320/PNH Awaiting decision

  31 Woodlands London NW11 9QJ

  2no. single-storey rear extensions with a proposed depth of 6 metres, maximum height of 4 metres and eaves height of 3 metres, following demolition of the existing rear extension and patio. (Amended description)

  10 Sep 2026 Prior approval
• 26/3303/PNH Awaiting decision

  95 Bittacy Rise London NW7 2HH

  Single storey rear extension with a proposed depth of 4.00 metres, maximum height of 4.00 metres and eaves height of 3.00 metres. Following demolition of the existing rear extension.

  9 Sep 2026 Prior approval