3B Marion Road London NW7 4AL

1. 16 Oct 2025

   Received by Barnet

2. 17 Oct 2025

   Validated

   Checked as complete and ready for consideration.

3. 10 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 12 December 2025, 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 full applications in a median of 56 days. More in our guide to how long planning decisions take.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 19 Byron Road London NW7 4AH

  26/0407/HSE Submitted 3 Feb 2026 50 yards away

  77% historically approved · decision due ~31 Mar

  Single storey side infill extension with 4no. rooflights

  Awaiting decision Householder Extension Loft or dormer 7 docs
  Small domestic

• 19 Byron Road London NW7 4AH

  25/5109/192 Submitted 18 Dec 2025 50 yards away

  Roof extension involving rear and side dormer windows and 2no. front facing rooflights, following demolition of chimney stack (AMENDED DESCRIPTION)

  Granted Lawful development Extension Loft or dormer +2 6 docs

• 19 Byron Road London NW7 4AH

  26/1563/HSE Submitted 27 Apr 2026 50 yards away

  Single storey side extension to existing rear outrigger with pitched roof and rooflights. Alterations to side and rear fenestration

  Granted Householder Extension Loft or dormer +1 8 docs
  Small domestic

• 111 Daws Lane London NW7 4SJ

  24/1624/HSE Submitted 23 Apr 2024 100 yards away

  Single storey side extension

  Granted Householder Extension 6 docs
  Small domestic

• 4 Winterstoke Gardens London NW7 2RA

  TCP/0712/25 Submitted 28 Oct 2025 150 yards away

  1 x Oak (applicants ref. 1) - Crown reduce by 20% to allow light. 1 x Oak (applicants ref. 2) - Crown thin to reduce overhang on access road.

  Decided Trees 2 docs

• 2 Winterstoke Gardens London NW7 2RA

  TCP/0080/26 Submitted 12 Feb 2026 200 yards away

  4 X Prunus Blackthorn and Plum (Applicant's Ref TR #1, TR #2, TR #3 & TR #4) Fell and replace with Magnolia, Amelanchier, Cornus.

  Decided Trees 4 docs

• 26/2740/FUL Refused

  867 Finchley Road London NW11 8RR

  Change of use of a betting office (Sui Generis) to an Adult Gaming Centre (Sui Generis)

  Received 24 Jul, published by the council 3 Aug 2026 Full applications
• 26/3851/FUL Awaiting decision

  517 Watford Way London NW7 2QR

  Single storey extension to the rear of the existing workshop building to provide relocated MOT Bay

  23 Oct 2026 Full applications
• 26/3848/FUL Awaiting decision

  157 Brent Street London NW4 4DJ

  Mansard roof extension involving 2no. front, 3no. side and 2no. rear dormer windows to provide 1no. self-contained flat including raising of the eaves level and addition of window to second floor. Removal of chimneys. Additional side door to ground floor level to provide access to cycle and refuse/recycling storage

  23 Oct 2026 Full applications
• 26/3828/FUL Awaiting decision

  41 - 43 Sneath Avenue London NW11 9AJ

  Part single, part two storey rear extensions to both properties following the demolition of the single storey rear extension at no.43

  22 Oct 2026 Full applications
• 26/3829/FUL Awaiting decision

  369 Watford Way London NW4 4TE

  Change of use of the existing dwelling (Use Class C3) to a 11 bed 11 Person HMO (House in Multiple Occupation) (Use Class Sui Generis) including part single, part two storey side and rear extensions and roof extension involving rear dormer window. Associated refuse/recycling storage, cycle parking, landscaping and external amenity space

  22 Oct 2026 Full applications