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
• 25/3963/HSE Awaiting decision

  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. Two storey front extension incorporating 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 both side elevations, 3no. rooflights to front roofslope and 2no. rooflights to both side roofslopes

  Submitted 30 Sep 2025 Householder

1. 16 Dec 2025

   Received by Barnet

2. 23 Dec 2025

   Validated

   Checked as complete and ready for consideration.

3. 10 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 17 February 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 43 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 prior approval applications in a median of 36 days. More in our guide to how long planning decisions take.

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

• 3 Grosvenor Gardens London NW11 0HH

  25/3963/HSE Submitted 30 Sep 2025 0m away

  77% historically approved · decision due ~25 Nov

  Part single, part two storey side and rear extensions including conversion of existing garage into habitable room and first floor juliette balcony. Two storey front extension incorporating 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 both side elevations, 3no. rooflights to front roofslope and 2no. rooflights to both side roofslopes

  Awaiting decision Householder Extension Loft or dormer +2 15 docs
  Small domestic

• 3 Grosvenor Gardens London NW11 0HH

  26/0739/HSE Submitted 25 Feb 2026 0m 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 64m away

  95% 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 76m 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 77m away

  77% historically approved · decision due ~15 Jun

  Part single, part two storey rear extension

  Awaiting decision Householder Extension 6 docs
  Domestic

• 14 Cranbourne Gardens London NW11 0HP

  26/1255/192 Submitted 1 Apr 2026 77m away

  79% 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

• 26/3224/PNH Awaiting decision

  Low Ridge Rowley Lane Barnet EN5 3HS

  Single storey rear extension with a proposed depth of 8.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres.

  3 Sep 2026 Prior approval
• 26/3218/PNH Awaiting decision

  22 Highcroft Gardens London NW11 0LX

  2no. Single storey rear extensions with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres, and depth of 3.05 metres, maximum height of 3.00 metres and eaves height of 3.00 metres respectively, following demolition of existing roofed patio.

  2 Sep 2026 Prior approval
• 26/3212/PNH Awaiting decision

  10 Richmond Road Barnet EN5 1SB

  Single storey rear extension with a proposed depth of 5.54 metres, maximum height of 3.50 metres and eaves height of 3.00 metres.

  2 Sep 2026 Prior approval
• 26/3183/PNH Awaiting decision

  34 Selvage Lane London NW7 3SP

  Single storey rear extension with a proposed depth of 3.80 metres, maximum height of 3.00 metres and eaves height of 2.75 metres, following partial demolition of existing side manifestation.

  1 Sep 2026 Prior approval
• 26/3194/PNH Awaiting decision

  74 Windsor Drive Barnet EN4 8UD

  Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 2.60 metres, following demolition of the existing rear extension.

  31 Aug 2026 Prior approval