3 Grosvenor Gardens London NW11 0HH

This site has had 3 applications since 2025: 1 approved, 0 refused.

• 26/0739/HSE Granted

  3 Grosvenor Gardens London NW11 0HH

  Part single, part two storey side and rear extensions including conversion of existing garage into habitable room and first floor juliette balcony and new rear patio area. New front porch. Associated alterations and extensions to roof including increasing ridge height to create a new crown roof with 2no. rear dormer windows and 1no dormer window to each side elevation, 3no.rooflights to front roofslope and 1no. rooflights to both side roofslopes

  Decided 23 Apr 2026 Householder
• 25/5051/PNH Awaiting decision

  3 Grosvenor Gardens London NW11 0HH

  2no. Single storey rear extensions with a proposed depth of 4.80 metres, maximum height of 4.00 metres and eaves height of 3.00 metres and depth of 6.80 metres, maximum height of 4.00 metres and eaves height of 3.00 metres respectively, following demolition of existing rear extension.

  Submitted 16 Dec 2025 Prior approval

1. 30 Sep 2025

   Received by Barnet

2. 10 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 25 November 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 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.

• 3 Grosvenor Gardens London NW11 0HH

  25/5051/PNH Submitted 16 Dec 2025 50 yards away

  56% historically approved · decision due ~17 Feb

  2no. Single storey rear extensions with a proposed depth of 4.80 metres, maximum height of 4.00 metres and eaves height of 3.00 metres and depth of 6.80 metres, maximum height of 4.00 metres and eaves height of 3.00 metres respectively, following demolition of existing rear extension.

  Awaiting decision Prior approval Extension Demolition 12 docs
  Small domestic

• 3 Grosvenor Gardens London NW11 0HH

  26/0739/HSE Submitted 25 Feb 2026 50 yards away

  Part single, part two storey side and rear extensions including conversion of existing garage into habitable room and first floor juliette balcony and new rear patio area. New front porch. Associated alterations and extensions to roof including increasing ridge height to create a new crown roof with 2no. rear dormer windows and 1no dormer window to each side elevation, 3no.rooflights to front roofslope and 1no. rooflights to both side roofslopes

  Granted Householder Extension Loft or dormer +2 17 docs
  Small domestic

• Clara Nehab House 13 - 19 Leeside Crescent London NW11 0DA

  25/4641/CON Submitted 20 Nov 2025 50 yards away

  93% historically approved · decision due ~15 Jan

  Submission of details of condition 5 (Demolition and Construction Management and Logistics Plan) 22/0889/FUL dated 30/11/2023

  Awaiting decision Conditions Demolition 2 docs

• 29 Leeside Crescent London NW11 0DA

  26/0982/PNH Submitted 16 Mar 2026 100 yards away

  2No single storey rear extensions with a proposed depth of 6.00m, maximum height of 3.00m and an eaves height of 3.00m

  Granted Prior approval Extension 6 docs
  Small domestic

• 14 Cranbourne Gardens London NW11 0HP

  26/1451/HSE Submitted 20 Apr 2026 100 yards away

  Part single, part two storey rear extension

  Granted Householder Extension 7 docs
  Domestic

• 14 Cranbourne Gardens London NW11 0HP

  26/1255/192 Submitted 1 Apr 2026 100 yards away

  80% historically approved · decision due ~27 May

  Single storey rear extension. New front porch. Roof extension involving hip to gable, rear dormer window, 3no. front facing rooflights and new side gable window

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

• 26/3853/HSE Awaiting decision

  30 Goldsmith Avenue London NW9 7HB

  Single storey rear extension following demolition of the existing extension

  23 Oct 2026 Householder
• 26/3856/HSE Awaiting decision

  229 Hale Drive London NW7 3EH

  Single storey rear extension

  23 Oct 2026 Householder
• 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
• 26/3841/HSE Awaiting decision

  Manor House West Heath Close London NW3 7NJ

  New metal framed pergola to upper ground floor rear terrace

  Received 22 Oct, published by the council 23 Oct 2026 Householder