4 Treetop Mews, London, NW6 7BL

1. 17 Sep 2025

   Received by Brent

2. 7 Nov 2025

   Decision issued: Permission Granted

3. 11 Aug 2026

   Added to PlanIndex

Brent granted permission on 7 November 2025, 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.

• Flat 1, 11 Brondesbury Park, Kilburn, London, NW6 7BS

  24/2917 Submitted 15 Oct 2024 50 yards away

  Proposed conversion of garage into a habitable room including the replacement of garage door with window, erection of single-storey rear extension, alterations to side fenestration and raised rear patio to ground floor flat.

  Granted Full applications Extension Windows or glazing 6 docs
  Small domestic

• Flat 1, 11 Brondesbury Park, Kilburn, London, NW6 7BS

  25/2956 Submitted 17 Oct 2025 50 yards away

  Proposed single-storey outbuilding in the rear garden of the ground-floor flat.

  Granted Full applications 6 docs
  Small domestic

• Ex Marylebone Boy's School, 60 Christchurch Avenue, London, NW6 7BH

  21/2349 Submitted 22 Jun 2021 100 yards away

  Details pursuant to Conditions 4 (Landscaping), 5 (BREEAM pre-assessment) and 12 (Cycle shelter) and 17 (Community Use Agreement) of Full Planning Permission reference 20/0762 dated 23 October, 2020, for Erection of a four storey SEN school (Use Class D1); creation of external playspace, provision of waste storage; creation of a new vehicular crossover from Christ church Avenue; alterations to boundary treatment with associated landscaping.

  Granted Conditions 13 docs

• Ex Marylebone Boy's School, 60 Christchurch Avenue, London, NW6 7BH

  20/3437 Submitted 26 Oct 2020 100 yards away

  Details pursuant to Condition 3 (Materials Condition), Condition 8 (Construction Logistics Plan), Condition 11 (Construction Method Statement), Condition 15 (Arboricultural Method Statement) of Full Planning Permission reference 20/0762 dated 23 October, 2020, for Erection of a four storey SEN school (Use Class D1); creation of external playspace, provision of waste storage; creation of a new vehicular crossover from Christchurch Avenue; alterations to boundary treatment with associated landscaping

  Granted Conditions 6 docs

• Ex Marylebone Boy's School, 60 Christchurch Avenue, London, NW6 7BH

  20/0762 Submitted 4 Mar 2020 100 yards away

  Erection of a four storey SEN school (Use Class D1); creation of external playspace, provision of waste storage; creation of a new vehicular crossover from Christchurch Avenue; alterations to boundary treatment with associated landscaping

  Granted Full applications 41 docs

• Ex Marylebone Boy's School, 60 Christchurch Avenue, London, NW6 7BH

  21/1663 Submitted 6 May 2021 100 yards away

  Non material amendment to allow: Relocation of sub station by 500mm of Full Planning Permission reference 20/0762 dated 23 October, 2020 as amended by 20/3434 dated 10 March 2021 for Erection of a four storey SEN school (Use Class D1); creation of external playspace, provision of waste storage; creation of a new vehicular crossover from Christchurch Avenue; alterations to boundary treatment with associated landscaping

  Granted Amendments 5 docs

• 26/2300 Awaiting decision

  22 Plympton Avenue, London, NW6 7TJ

  Proposed single-storey side infill extension, replacement of ground floor rear door with window, and replacement of ground floor rear windows with sliding doors to dwellinghouse

  Received 10 Sep, published by the council 21 Sep 2026 Householder
• 26/2292 Awaiting decision

  116 Stag Lane, Edgware, HA8 5LL

  Demolition of existing side store and proposed single store side to rear extension, first floor part side and rear extension, front porch extension, hip to gable extension, rear dormer window with 4x front rooflights and removal of chimney stack to the dwellinghouse.

  Received 9 Sep, published by the council 21 Sep 2026 Householder
• 26/2264 Awaiting decision

  19 Littleton Road, Harrow, HA1 3SY

  Proposed demolition of existing garage, single storey side extension and single storey rear extension, and erection of a two-storey side extension, part single and part two storey rear extension, 1x side and 1x rear dormer extension, conversion of garage into habitable space with replacement of garage door with window, alteration to front, rear and side fenestration and removal of chimney to dwellinghouse.

  Received 7 Sep, published by the council 21 Sep 2026 Householder
• 26/2262 Awaiting decision

  1 Chestnut Grove, Wembley, HA0 2LX

  Demolition of existing conservatory, part two storey rear extension, single storey structure to side extension & front porch and erection of single-storey side to rear extension, erection of first floor rear extension, alterations to raised patio, addition of hipped roof to first-floor side extension, 1x front & 1x rear rooflight, replacement of roof tiles, alterations to fenestrations, rendering to elevations, front porch canopy with pillars, new front door & new garage door to dwellinghouse

  Received 7 Sep, published by the council 21 Sep 2026 Householder
• 26/2260 Awaiting decision

  19 Mitchell Way, London, NW10 0PT

  Proposed two storey rear extension and front porch extension with canopy to dwellinghouse.

  Received 4 Sep, published by the council 21 Sep 2026 Householder