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
• 26/1690/PNH Refused

  63 Sefton Avenue London NW7 3QE

  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

  Decided 10 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

1. 16 Feb 2026

   Received by Barnet

2. 18 Feb 2026

   Validated

   Checked as complete and ready for consideration.

3. 2 Mar 2026

   Decision issued: Lawful

4. 10 Aug 2026

   Added to PlanIndex

Barnet granted permission on 2 March 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.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 63 Sefton Avenue London NW7 3QE

  26/1690/PNH Submitted 6 May 2026 50 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

  26/1001/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

• 26/2679/192 Granted

  21 Myddelton Park London N20 0JH

  Single storey rear extension and increase in ridge height of existing rear outrigger (Amended description).

  Received 20 Jul, published by the council 7 Aug 2026 Lawful development
• 26/1362/191 Refused

  145 Cotswold Gardens London NW2 1PL

  Use as a House in Multiple Occupation (HMO) for 6 people

  Received 14 Apr, published by the council 25 Jul 2026 Lawful development
• 26/1907/191 Granted

  8 Golders Manor Drive London NW11 9HT

  Use of the property as a self-contained residential unit at ground floor level and the first and second floors as a 4-bedroom, 4-person House in Multiple Occupation (Sui Generis) (AMENDED DESCRIPTION)

  Received 21 May, published by the council 16 Aug 2026 Lawful development
• 26/2392/192 Refused

  6 Mostyn Road Edgware HA8 0JD

  New front hardstanding and vehicular access to provide off-street parking

  Received 23 Jun, published by the council 9 Aug 2026 Lawful development
• 26/2059/192 Refused

  Low Ridge Rowley Lane Barnet EN5 3HS

  Erection of a rear outbuilding

  Received 3 Jun, published by the council 16 Aug 2026 Lawful development