12 Summerfield Avenue, London, NW6 6JU

This site has had 3 applications since 2016: 2 approved, 1 refused.

• 21/1732 Granted

  12 Summerfield Avenue, London, NW6 6JU

  Proposed ground floor single-storey side extension to dwellinghouse.

  Decided 6 Jul 2021 Householder
• 20/3878 Granted

  12 Summerfield Avenue, London, NW6 6JU

  Certificate of lawfulness for proposed single storey detached outbuilding in the rear garden of dwellinghouse

  Decided 26 Jan 2021 Lawful development

1. 6 Jan 2016

   Received by Brent

2. 25 Aug 2016

   Validated

   Checked as complete and ready for consideration.

3. 20 Oct 2016

   Decision issued: Refuse Planning Permission

4. 20 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.

• 12 & 14 Summerfield Avenue, London, NW6 6JU

  21/3642 Submitted 27 Sep 2021 50 yards away

  Proposed excavation of basement, single storey side infill to rear extension, rear dormer window, one front rooflight, replacement of existing rear rooflight, three rooflights to side/rear projection, like for like replacement of front and rear fenestration, new first floor side window, enlargement of existing first floor side window, removal of first floor side window. Demolition of main roof rear main wall, side and rear walls on outrigger, leaving only the facade. Roof to be of new construction and rebuild exactly like for like. New hardstanding, soft landscaping and refuse storage to front garden to no.14. Proposed excavation of basement and ground floor single storey side infill extension, one roof light to side infill and hardstanding, soft landscaping and refuse storage to front garden to no.12.

  Withdrawn Full applications Extension Loft or dormer +2 2 docs
  Small domestic

• 12 Summerfield Avenue, London, NW6 6JU

  20/3878 Submitted 26 Nov 2020 50 yards away

  Certificate of lawfulness for proposed single storey detached outbuilding in the rear garden of dwellinghouse

  Granted Lawful development 6 docs
  Small domestic

• 6 Summerfield Avenue, London, NW6 6JU

  24/2031 Submitted 22 Jul 2024 50 yards away

  Proposed erection of single storey side infill extension, implementation of rear dormer window, replacement of fenestration to front and rear elevations and insertion of 2x rooflights to dwellinghouse

  Granted Householder Extension Loft or dormer +1 8 docs
  Small domestic

• 2 Summerfield Avenue, London, NW6 6JU

  20/0431 Submitted 10 Feb 2020 50 yards away

  Single storey side return extension with four rooflights and replacement of door and window to existing rear extension with folding doors to dwellinghouse

  Granted Householder Extension Loft or dormer +1 3 docs
  Small domestic

• 10 Summerfield Avenue, London, NW6 6JU

  20/2944 Submitted 21 Sep 2020 50 yards away

  Retrospective planning permission for excavation of basement with front and rear lightwell, erection of front boundary wall with fixed planter behind, tiling to front garden and proposed installation of metal gate to pedestrian access and additional fixed planter box

  Granted Householder 19 docs
  Small domestic

• 12 Summerfield Avenue, London, NW6 6JU

  21/1732 Submitted 11 May 2021 50 yards away

  Proposed ground floor single-storey side extension to dwellinghouse.

  Granted Householder Extension 6 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