50 Sunbury Avenue London NW7 3SJ

1. 8 Jan 2026

   Received by Barnet

2. 3 Feb 2026

   Validated

   Checked as complete and ready for consideration.

3. 10 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 31 March 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 46 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 lawful development applications in a median of 28 days. More in our guide to how long planning decisions take.

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.

• 37 Sunbury Avenue London NW7 3SL

  26/1422/192 Submitted 17 Apr 2026 100 yards away

  Roof extension involving hip to gable to rear with rear juliette balcony, and 1no. side dormer window on either side. Removal of the existing chimney stack [Amended Description]

  Granted Lawful development Extension Loft or dormer +1 10 docs

• 23 Selvage Lane London NW7 3SS

  26/3716/HSE Submitted 14 Oct 2026 150 yards away

  77% historically approved · decision due ~14 Dec

  Replacement of existing flat roof with new pitched roof including raising eaves height to the existing outbuilding

  Awaiting decision Householder
  Small domestic

• 37 Sunbury Avenue London NW7 3SL

  26/2310/HSE Submitted 18 Jun 2026 150 yards away

  77% historically approved · decision due ~14 Aug

  Two storey side extension including conversion of the existing garage into habitable room, insertion of window to replace the garage door. Roof extension involving hip to gable to rear with rear juliette balcony, and 1no. side dormer window on either side. Removal of the existing chimney stack

  Awaiting decision Householder Extension Loft or dormer +1 11 docs
  Domestic

• 663A And 665A Watford Way London NW7 3JR

  25/5169/FUL Submitted 24 Dec 2025 200 yards away

  63% historically approved · decision due ~18 Feb

  Roof extension involving gable end, front and rear dormer window and 1no. rear and front facing rooflight to both properties

  Awaiting decision Full applications Extension Loft or dormer +1 8 docs

• Briardale Edgware Way Edgware HA8 9ST

  25/4722/FUL Submitted 26 Nov 2025 200 yards away

  63% historically approved · decision due ~21 Jan

  Addtional storeys at third and fourth levels to provide additional 8no. self-contained flats including front and rear extensions, rear balconies, lift shaft and escape stairs. Associated additional refuse/recycling storage

  Awaiting decision Full applications New dwelling Extension 14 docs

• 49 Elmgate Gardens Edgware HA8 9RU

  26/1074/HSE Submitted 20 Mar 2026 200 yards away

  Roof extension involving hip to gable, rear dormer window with juliette balcony, 3no. front facing rooflights and new side gable window

  Granted Householder Extension Loft or dormer +1 10 docs
  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