15 Cowper Road London N14 5RR

This site has had 2 applications since 2026.

• 26/3474/HSE Awaiting decision

  15 Cowper Road London N14 5RR

  Part single, part two storey rear extension with 1no. rooflight. Rear extension and conversion of the existing garage into habitable room, insertion of rear window and door to replace garage door. New front porch.

  Submitted 24 Sep 2026 Householder

1. 24 Sep 2026

   Received by Barnet

2. 25 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 19 November 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 45 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 householder applications in a median of 56 days. More in our guide to how long planning decisions take.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 15 Cowper Road London N14 5RR

  26/3474/HSE Submitted 24 Sep 2026 50 yards away

  77% historically approved · decision due ~19 Nov

  Part single, part two storey rear extension with 1no. rooflight. Rear extension and conversion of the existing garage into habitable room, insertion of rear window and door to replace garage door. New front porch.

  Awaiting decision Householder Extension Loft or dormer +1
  Small domestic

• 35 Cowper Road London N14 5RR

  26/1924/HSE Submitted 21 May 2026 50 yards away

  Single storey rear extension with 2no. rooflights

  Granted Householder Extension Loft or dormer 12 docs
  Small domestic

• 28 Cowper Road London N14 5RT

  26/1176/HSE Submitted 27 Mar 2026 50 yards away

  77% historically approved · decision due ~22 May

  Part single, part two storey side and rear extensions. Erection of a rear outbuilding following demolition of the existing garage

  Awaiting decision Householder Extension Demolition 4 docs
  Small domestic

• 108 The Woodlands London N14 5RX

  21/5668/PNH Submitted 25 Oct 2021 150 yards away

  Single storey rear extension with a proposed depth of 6 metres from original rear wall, eaves height of 3 metres and maximum height of 3.3 metres.

  Refused Prior approval Extension 8 docs
  Small domestic

• 116 Chase Way London N14 5DH

  26/1659/PNH Submitted 1 May 2026 150 yards away

  Single storey rear extension with a proposed depth of 5.13 metres, maximum height of 3.15 metres and eaves height of 3.00 metres

  Refused Prior approval Extension 13 docs
  Small domestic

• 2 Oakdale London N14 5RE

  26/2706/192 Submitted 22 Jul 2026 150 yards away

  79% historically approved · decision due ~16 Sep

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

  Awaiting decision Extension Loft or dormer +1

• 26/3476/HSE Awaiting decision

  116 Chase Way London N14 5DH

  Single storey rear extension with 2no. rooflights. Changes to fenestration; new doors, 3no. new windows to rear elevation

  Received 24 Sep, published by the council 25 Sep 2026 Householder
• 26/3470/HSE Awaiting decision

  3 Linnell Drive London NW11 7LP

  Installation of air conditioning unit behind side gate, screened by trellis panels, vertical rise from unit to eaves concealed inside a false rainwater pipe

  Received 24 Sep, published by the council 25 Sep 2026 Householder
• 26/3471/HSE Awaiting decision

  10 Constable Close London NW11 6TY

  Conversion of the garage and side wing to habitable accommodation, changes to fenestration to front and rear elevation, installation of 3no. rooflights, front bay window extension, lowering of rear patio and associated works. Installation of cctv, new external wall lights and EV charging point

  Received 24 Sep, published by the council 25 Sep 2026 Householder
• 26/3478/HSE Awaiting decision

  52 Wolmer Gardens Edgware HA8 8QD

  First floor side and rear extension

  Received 24 Sep, published by the council 25 Sep 2026 Householder
• 26/3482/HSE Awaiting decision

  18 Boyne Avenue London NW4 2JN

  Single storey rear extension

  Received 24 Sep, published by the council 25 Sep 2026 Householder