63 Sefton Avenue London NW7 3QE

1. 17 Feb 2026

   Received by Barnet

2. 18 Feb 2026

   Validated

   Checked as complete and ready for consideration.

3. 10 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 15 April 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 42 days over the applications it decided in the last year.

This application is with Barnet for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

Prior approval applications arise where permitted development rights already grant the principle of the work, such as larger home extensions, changes of use to housing or agricultural buildings. The council may only consider the specific matters set out in the rules, for example transport, flooding or appearance, and in many classes the work may proceed if the council does not respond within the deadline, commonly 56 days.

More on prior approval applications in our guide

• 63 Sefton Avenue London NW7 3QE

  26/1001/PNH Submitted 16 Mar 2026 2m away

  57% historically approved · decision due ~11 May

  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

  Awaiting decision Prior approval Extension 11 docs
  Small domestic

• 63 Sefton Avenue London NW7 3QE

  26/1690/PNH Submitted 6 May 2026 7m away

  57% historically approved · decision due ~1 Jul

  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

  Awaiting decision Prior approval Extension 10 docs
  Small domestic

• 63 Sefton Avenue London NW7 3QE

  26/0597/192 Submitted 16 Feb 2026 7m away

  79% historically approved · decision due ~15 Apr

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

  Awaiting decision Lawful development Extension Loft or dormer +1 10 docs

• 63 Sefton Avenue London NW7 3QE

  26/2326/PNH Submitted 19 Jun 2026 52m away

  57% 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 64m 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 82m 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

• 26/3224/PNH Awaiting decision

  Low Ridge Rowley Lane Barnet EN5 3HS

  Single storey rear extension with a proposed depth of 8.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres.

  3 Sep 2026 Prior approval
• 26/3218/PNH Awaiting decision

  22 Highcroft Gardens London NW11 0LX

  2no. Single storey rear extensions with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres, and depth of 3.05 metres, maximum height of 3.00 metres and eaves height of 3.00 metres respectively, following demolition of existing roofed patio.

  2 Sep 2026 Prior approval
• 26/3212/PNH Awaiting decision

  10 Richmond Road Barnet EN5 1SB

  Single storey rear extension with a proposed depth of 5.54 metres, maximum height of 3.50 metres and eaves height of 3.00 metres.

  2 Sep 2026 Prior approval
• 26/3183/PNH Awaiting decision

  34 Selvage Lane London NW7 3SP

  Single storey rear extension with a proposed depth of 3.80 metres, maximum height of 3.00 metres and eaves height of 2.75 metres, following partial demolition of existing side manifestation.

  1 Sep 2026 Prior approval
• 26/3194/PNH Awaiting decision

  74 Windsor Drive Barnet EN4 8UD

  Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 2.60 metres, following demolition of the existing rear extension.

  31 Aug 2026 Prior approval