20 Chalfont Avenue, Wembley, HA9 6NS

1. 15 Sep 2025

   Received by Brent

2. 10 Nov 2025

   Decision issued: Permission Refused

3. 11 Aug 2026

   Added to PlanIndex

Brent refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. 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.

• 4 Chalfont Avenue, Wembley, HA9 6NS

  20/2373 Submitted 6 Aug 2020 50 yards away

  Proposed first-floor side extension to dwellinghouse

  Refused Householder Extension 9 docs
  Domestic

• 40 Grittleton Avenue, Wembley, HA9 6NT

  26/2099 Submitted 17 Aug 2026 50 yards away

  79% historically approved · decision due ~12 Oct

  Permission in Principle for the residential development of the land to provide 1 net dwelling wit...

  Decided New dwelling 9 docs
  Domestic

• 40 Grittleton Avenue, Wembley, HA9 6NT

  26/1936 Submitted 30 Jul 2026 50 yards away

  Demolition of existing rear conservatory and garage and proposed single storey side and rear exte...

  Granted Extension Demolition 7 docs
  Small domestic

• 19 Chalfont Avenue, Wembley, HA9 6NW

  26/0556 Submitted 4 Mar 2026 100 yards away

  Certificate of lawfulness for proposed hip to gable roof extension, rear dormer extension and 2x front rooflights to the dwellinghouse.

  Granted Lawful development Extension Loft or dormer 6 docs
  Domestic

• 7 Chalfont Avenue, Wembley, HA9 6NW

  26/0397 Submitted 17 Feb 2026 100 yards away

  Conversion of single dwelling house into 2x self-contained flats, with demolition of existing side outbuilding and proposed relocation of ground floor rear door, cycle and refuse storage spaces, associated landscaping and amenity space.

  Refused Full applications New dwelling Demolition 12 docs
  Small domestic

• 15 Grittleton Avenue, Wembley, HA9 6NX

  21/3100 Submitted 11 Aug 2021 100 yards away

  Proposed single storey rear extension, first floor rear extension and hip to gable loft conversion with rear dormer window and juliet balcony, removal of existing chimney stack and installation of 2 x front rooflights to dwellinghouse

  Refused Householder Extension Loft or dormer +1 17 docs
  Small domestic

• 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