31 Haslemere Avenue London NW4 2PU

This site has had 3 applications since 2026: 2 approved, 0 refused.

• 26/2487/HSE Decided

  31 Haslemere Avenue London NW4 2PU

  Single storey front extension with new porch with canopy and front bay window. Part single, part two storey side and rear wraparound extensions with new rear raised terrace area with access steps to garden, 1no. rooflight and new roof. New hardstanding and alteration to the existing vehicular access to off-street parking. New side gate. Roof extension involving hip to gable to both sides, rear dormer windows, 3no. front and 1no. rear facing rooflights and new side gable window. Changes to fenestration.

  Submitted 1 Jul 2026 Householder
• 26/0503/192 Granted

  31 Haslemere Avenue London NW4 2PU

  Roof extension involving raised gables, rear dormer window, 3no. front facing rooflights and new side gable window

  Decided 6 Mar 2026 Lawful development

1. 23 Mar 2026

   Received by Barnet

2. 13 May 2026

   Decision issued: Approve subject to conditions

3. 25 Jul 2026

   Added to PlanIndex

Barnet granted permission on 13 May 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.

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.

• 31 Haslemere Avenue London NW4 2PU

  26/0503/192 Submitted 9 Feb 2026 50 yards away

  Roof extension involving raised gables, rear dormer window, 3no. front facing rooflights and new side gable window

  Granted Lawful development Extension Loft or dormer +1 5 docs

• 31 Haslemere Avenue London NW4 2PU

  26/2487/HSE Submitted 1 Jul 2026 50 yards away

  77% historically approved · decision due ~26 Aug

  Single storey front extension with new porch with canopy and front bay window. Part single, part two storey side and rear wraparound extensions with new rear raised terrace area with access steps to garden, 1no. rooflight and new roof. New hardstanding and alteration to the existing vehicular access to off-street parking. New side gate. Roof extension involving hip to gable to both sides, rear dormer windows, 3no. front and 1no. rear facing rooflights and new side gable window. Changes to fenestration.

  Decided Householder Extension Loft or dormer +2
  Small domestic

• 15 Haslemere Avenue London NW4 2PU

  26/2534/HSE Submitted 6 Jul 2026 50 yards away

  Single storey front, side and rear extension with new patio area. Two storey side and rear extension with first floor juliette balcony with glass balustrade

  Refused Householder Extension
  Small domestic

• 15 Haslemere Avenue London NW4 2PU

  26/1594/192 Submitted 28 Apr 2026 100 yards away

  Erection of a rear outbuilding

  Granted Lawful development 5 docs

• 9 Mayfield Gardens London NW4 2PY

  26/3754/HSE Submitted 16 Oct 2026 150 yards away

  77% historically approved · decision due ~11 Dec

  Part single, part two storey rear extension. Single side extension. New front porch. Alterations and extension to roof including side and rear dormer windows and front, side and rear rooflights

  Awaiting decision Householder Extension Loft or dormer +1
  Small domestic

• 9 Mayfield Gardens London NW4 2PY

  26/3760/HSE Submitted 16 Oct 2026 150 yards away

  77% historically approved · decision due ~11 Dec

  Part single part two storey side and rear extension. New front porch, Two storey front bay extension. Alterations to roof including 2no. side dormer windows, rear dormer window and front and side facing rooflights.

  Awaiting decision Householder Extension Loft or dormer +1
  Small domestic

• 26/3476/HSE Granted

  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
• 26/4019/HSE Awaiting decision

  38 Asmuns Hill London NW11 6ET

  Replacement of windows with vacuum-glazed windows (excluding subframes) and new french doors to rear

  6 Nov 2026 Householder
• 26/4023/HSE Awaiting decision

  61 Bullescroft Road Edgware HA8 8RN

  Single storey front, side and rear wraparound extension incorporating porch following conversion of the existing garage, including window to replace garage door

  6 Nov 2026 Householder
• 26/4015/HSE Awaiting decision

  6 Raeburn Close London NW11 6UG

  Alterations to the rear ground floor elevation, including replacement of the existing door and two windows with timber framed French doors and windows. Replacement of existing single glazed windows with new double glazed timber windows. Replacement of the existing rear patio doors with double glazed timber doors. Formation of a new rear patio. Addition of new bin storage at front

  Received 5 Nov, published by the council 6 Nov 2026 Householder
• 26/4012/HSE Awaiting decision

  59 Hendon Way London NW2 2LX

  Two storey side and rear extension. New front porch

  5 Nov 2026 Householder