12 Marlborough Avenue Edgware HA8 8UH

This site has had 6 applications since 2025: 2 approved, 1 refused.

• 26/3796/S73 Awaiting decision

  12 Marlborough Avenue Edgware HA8 8UH

  Variation of condition 1 (Approved plans) pursuant to planning permission 26/3039/HSE dated 14/10/2026 for `Part single, part two storey rear extension. First floor side extension. Roof extension involving side and rear wraparound dormer and side gable windows. New front porch with associated steps and railings.` Amendments include changes to the roof form over the side extension

  Submitted 20 Oct 2026
• 26/3039/HSE Decided

  12 Marlborough Avenue Edgware HA8 8UH

  Part single, part two storey rear extension. First floor side extension. Roof extension involving side and rear wraparound dormer and side gable windows. New front porch with associated steps and railings

  Submitted 18 Aug 2026 Householder
• 26/2009/192 Awaiting decision

  12 Marlborough Avenue Edgware HA8 8UH

  Removal and alteration of existing roof above existing two storey side (Phase 1). Roof extension involving wraparound side and rear dormer windows (Phase 2). (Phase 2 to commence when phase 1 completed)

  Submitted 29 May 2026 Lawful development
• 26/0630/192 Refused

  12 Marlborough Avenue Edgware HA8 8UH

  Roof extension involving side/rear wraparound dormer

  Decided 15 Apr 2026 Lawful development
• 25/4254/PNH Granted

  12 Marlborough Avenue Edgware HA8 8UH

  Single storey rear extension with a proposed depth of 6.00m, maximum height of 3.00m and eaves height of 2.70m

  Decided 27 Nov 2025 Prior approval

1. 24 Oct 2025

   Received by Barnet

2. 13 Jan 2026

   Decision issued: Approve subject to conditions

3. 10 Aug 2026

   Added to PlanIndex

Barnet granted permission on 13 January 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.

• 12 Marlborough Avenue Edgware HA8 8UH

  26/0630/192 Submitted 18 Feb 2026 50 yards away

  Roof extension involving side/rear wraparound dormer

  Refused Lawful development Extension Loft or dormer 6 docs

• 12 Marlborough Avenue Edgware HA8 8UH

  26/2009/192 Submitted 29 May 2026 50 yards away

  80% historically approved · decision due ~24 Jul

  Removal and alteration of existing roof above existing two storey side (Phase 1). Roof extension involving wraparound side and rear dormer windows (Phase 2). (Phase 2 to commence when phase 1 completed)

  Awaiting decision Lawful development Extension Loft or dormer +1 5 docs

• 12 Marlborough Avenue Edgware HA8 8UH

  25/4254/PNH Submitted 24 Oct 2025 50 yards away

  Single storey rear extension with a proposed depth of 6.00m, maximum height of 3.00m and eaves height of 2.70m

  Granted Prior approval Extension 6 docs
  Small domestic

• 12 Marlborough Avenue Edgware HA8 8UH

  26/3039/HSE Submitted 18 Aug 2026 50 yards away

  77% historically approved · decision due ~14 Oct

  Part single, part two storey rear extension. First floor side extension. Roof extension involving side and rear wraparound dormer and side gable windows. New front porch with associated steps and railings

  Decided Householder Extension Loft or dormer +1
  Small domestic

• 12 Marlborough Avenue Edgware HA8 8UH

  26/3796/S73 Submitted 20 Oct 2026 50 yards away

  79% historically approved · decision due ~17 Dec

  Variation of condition 1 (Approved plans) pursuant to planning permission 26/3039/HSE dated 14/10/2026 for `Part single, part two storey rear extension. First floor side extension. Roof extension involving side and rear wraparound dormer and side gable windows. New front porch with associated steps and railings.` Amendments include changes to the roof form over the side extension

  Awaiting decision Extension Loft or dormer +1
  Small domestic

• 47 Warwick Avenue Edgware HA8 8UN

  25/4472/HSE Submitted 10 Nov 2025 50 yards away

  77% historically approved · decision due ~13 Jan

  Part single part two storey side and rear extensions following demolition of the existing garage. Roof extension involving hip to gable, rear dormer window and 3no. front facing rooflights. New front porch

  Awaiting decision Householder Extension Loft or dormer +2 8 docs
  Small domestic

• 26/3827/HSE Awaiting decision

  43 Hermitage Lane London NW2 2HE

  Single storey rear extension with 3no. rooflights following demolition of the existing conservatory. Replacement front bay window and entrance porch. First floor rear juliette balcony. Changes to fenestration including new window openings and enlarged front rooflight

  22 Oct 2026 Householder
• 26/3833/HSE Awaiting decision

  47 Holne Chase London N2 0QG

  Single storey rear extension. Replacement of single glazed windows with double glazing. Alterations to side/rear fenestration. Alterations and replacement of existing rear dormer window addition of 2no. side dormer windows and 3no. rooflights. Installation of cameras and wall lights. Replacement of the front entrance and garage doors, installation of timber side garden gates

  22 Oct 2026 Householder
• 26/3815/HSE Awaiting decision

  17 Hurstwood Road London NW11 0AS

  Single storey rear extension

  21 Oct 2026 Householder
• 26/3800/HSE Awaiting decision

  29 Monks Avenue Barnet EN5 1BZ

  Single storey side and rear infill extension including new front porch following demolition of the side/rear storage.

  Received 20 Oct, published by the council 21 Oct 2026 Householder
• 26/3791/HSE Awaiting decision

  149 Montrose Avenue Edgware HA8 0DZ

  New front hardstanding and vechicular access to provide off-street parking

  Received 20 Oct, published by the council 21 Oct 2026 Householder