21 Marne Avenue London N11 1JU

1. 13 May 2026

   Received by Barnet

2. 24 Jun 2026

   Decision issued: Lawful

3. 25 Jul 2026

   Added to PlanIndex

Barnet granted permission on 24 June 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.

• 88 Oakleigh Road South London N11 1LB

  25/4429/FUL Submitted 6 Nov 2025 50 yards away

  Change of use of rear garden home office from (Class C3) to Estate Agent Office (Class E)

  Refused Full applications 10 docs

• 118 Oakleigh Road South London N11 1LB

  25/3516/CON Submitted 26 Aug 2025 50 yards away

  93% historically approved · decision due ~30 Oct

  Submission of details of condtion 9 (Hard and soft landscaping) pursuant to planning permission 24/3707/FUL dated 28/03/2025

  Awaiting decision Conditions 3 docs

• 46 Falkland Avenue London N11 1JS

  25/3526/192 Submitted 26 Aug 2025 100 yards away

  Roof extension involving rear dormer window and 2no. front facing rooflights

  Granted Lawful development Extension Loft or dormer +1 13 docs

• 28 Falkland Avenue London N11 1JS

  25/3517/HSE Submitted 26 Aug 2025 100 yards away

  Single storey rear extension

  Granted Householder Extension 7 docs
  Small domestic

• 103 Brunswick Park Road London N11 1JT

  26/3684/192 Submitted 12 Oct 2026 150 yards away

  78% historically approved · decision due ~10 Dec

  Roof extension involving hip to gable with rear dormer window and 3no. front facing roof lights. Single storey rear extension with 2no. rooflights and access steps to garden (Amended Description).

  Awaiting decision Extension Loft or dormer +1
  Small domestic

• 103 Brunswick Park Road London N11 1JT

  26/3337/PNH Submitted 11 Sep 2026 150 yards away

  56% historically approved · decision due ~10 Nov

  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.

  Awaiting decision Prior approval Extension Demolition
  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