20 Dartmouth Road London NW4 3HU

This site has had 3 applications since 2026.

• 26/3083/192 Awaiting decision

  20 Dartmouth Road London NW4 3HU

  Roof extension involving rear dormer windows and 3no. front facing rooflights, with internal alterations. (AMENDED)

  Submitted 21 Aug 2026
• 26/3084/192 Awaiting decision

  20 Dartmouth Road London NW4 3HU

  Single storey rear extension infill with 2no. rooflights

  Submitted 21 Aug 2026

1. 21 Sep 2026

   Received by Barnet

2. 21 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 16 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 44 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.

• 20 Dartmouth Road London NW4 3HU

  26/3083/192 Submitted 21 Aug 2026 50 yards away

  79% historically approved · decision due ~16 Oct

  Roof extension involving rear dormer windows and 3no. front facing rooflights, with internal alterations. (AMENDED)

  Awaiting decision Extension Loft or dormer +1

• 20 Dartmouth Road London NW4 3HU

  26/3084/192 Submitted 21 Aug 2026 50 yards away

  79% historically approved · decision due ~16 Oct

  Single storey rear extension infill with 2no. rooflights

  Awaiting decision Extension Loft or dormer
  Small domestic

• 12 Dartmouth Road London NW4 3HU

  25/3710/192 Submitted 9 Sep 2025 50 yards away

  Roof extension involving rear dormer window and 1no. front facing rooflight

  Granted Lawful development Extension Loft or dormer +1 7 docs

• 12 Dartmouth Road London NW4 3HU

  25/3427/HSE Submitted 15 Aug 2025 50 yards away

  Single storey rear extension with 1no. rooflight

  Granted Householder Extension Loft or dormer 10 docs
  Small domestic

• Flat 1 18 Mount Road London NW4 3PU

  25/4406/FUL Submitted 4 Nov 2025 50 yards away

  61% historically approved · decision due ~30 Dec

  Change of use of existing ground floor flat from Class C3 single family dwelling to Class C4 house in multiple occupation (HMO) for 3 persons

  Awaiting decision Full applications 7 docs
  Domestic

• 47 Audley Road London NW4 3EX

  26/2511/192 Submitted 3 Jul 2026 100 yards away

  Roof extension involving rear dormer window and 3no. front facing rooflights

  Granted Lawful development Extension Loft or dormer +1 6 docs

• 26/3438/HSE Awaiting decision

  48 Bohun Grove Barnet EN4 8UB

  Single storey rear extension with 2no. rooflights

  21 Sep 2026 Householder
• 26/3433/HSE Awaiting decision

  99 Francklyn Gardens Edgware HA8 8SB

  Single storey rear/side wraparound extension with 4no. rooflights and new access steps. Insertion of 1no. rooflight to the garage

  21 Sep 2026 Householder
• 26/3422/HSE Awaiting decision

  Revelstroke 28 Totteridge Village London N20 8JN

  Construction of a swimming pool and associated hard and soft landscaping following demolition of the existing shed including new access steps. Alterations to the ground level. Replacement of an existing timber decking terrace with a paved terrace.

  18 Sep 2026 Householder
• 26/3425/HSE Awaiting decision

  3 Wildernesse Close Edgware HA8 9GP

  Installation of 1no. front facing rooflight

  Received 18 Sep, published by the council 21 Sep 2026 Householder
• 26/3396/HSE Awaiting decision

  43 Dukes Avenue London N3 2DE

  Single storey rear, part two storey side extension with 1no. rooflight following the demolition of existing shed. Roof extension with rear dormer window, 1no. front, 3no. side facing rooflights and roof windows to the front and side roof slopes. Installation of solar panels to side elevation of roof

  17 Sep 2026 Householder