63 Sefton Avenue London NW7 3QE

This site has had 5 applications since 2026: 1 approved, 3 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. 10 Jun 2026

   Decision issued: Prior Approval Required and Refused

3. 25 Jul 2026

   Added to PlanIndex

Barnet refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

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 50 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

• 63 Sefton Avenue London NW7 3QE

  26/1001/PNH Submitted 16 Mar 2026 50 yards 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 50 yards 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 50 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

• 36 Delamere Gardens London NW7 3EB

  25/3683/HSE Submitted 8 Sep 2025 100 yards 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 100 yards 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

  Decided Householder Extension Loft or dormer +2
  Small domestic

• 26/3970/PNH Awaiting decision

  103 Arlington Road London N14 5BA

  2no. single storey rear extensions with a depth of 6.00 metrres, a maximum height of 4.00 metres and an eaves height of 3.00 metres and a depth of 6.00 metres, and eaves height of 4.00 metres and an eaves height of 3.00 metres.

  3 Nov 2026 Prior approval
• 26/3937/PNH Awaiting decision

  85 Cotswold Gardens London NW2 1PE

  Single storey rear extension with a proposed depth of 5.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres.

  29 Oct 2026 Prior approval
• 26/3927/PNH Awaiting decision

  56 Brookfield Crescent London NW7 2DG

  Single Storey Rear Extension with a depth of 6.00 metres, a maximum height of 3.53 metres and an eaves height of 3.00 metres

  Received 28 Oct, published by the council 29 Oct 2026 Prior approval
• 26/3923/PNH Awaiting decision

  31 Woodlands London NW11 9QJ

  2no. Single storey rear extensions with a proposed depth of 6.00 metres, maximum height of 4.00 metres and eaves height of 3.00 metres. Following demolition of the existing rear extension and patio.

  Received 28 Oct, published by the council 29 Oct 2026 Prior approval
• 26/3877/PNH Awaiting decision

  90 Cumbrian Gardens London NW2 1EL

  Single storey rear extension with a proposed depth of 6.00 metres, a maximum height of 3.00 metres and an eaves height of 3.00 metres, following demolition of the existing conservatory

  26 Oct 2026 Prior approval