17 Summerfield Avenue, London, NW6 6JT

1. 20 Oct 2025

   Received by Brent

2. 15 Dec 2025

   Decision issued: Permission Granted

3. 11 Aug 2026

   Added to PlanIndex

Brent granted permission on 15 December 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.

• 27 Summerfield Avenue, London, NW6 6JT

  21/1825 Submitted 18 May 2021 50 yards away

  Proposed loft conversion with rear dormer windows, single storey rear and side extension with glass roof, replacement of front, side and rear windows, 1 front rooflight, raised planting and new patio at rear of dwellinghouse.

  Granted Householder Extension Loft or dormer +2 14 docs
  Small domestic

• 5 Summerfield Avenue, London, NW6 6JT

  20/3263 Submitted 12 Oct 2020 50 yards away

  Proposed demolition of existing rear lean-to, erection ground floor wrap-around extension; loft conversion with rear dormer window and the insertion of one front rooflight and three rear rooflights to dwellinghouse

  Granted Householder Extension Loft or dormer +2 7 docs
  Domestic

• 9 Summerfield Avenue, London, NW6 6JT

  24/2338 Submitted 21 Aug 2024 50 yards away

  Non-material amendment: Change position of 2nd floor front rooflight. Lower basement level to accommodate detailed floor constructions. New rear lightwell to basement. Ground floor extension rooflights rearranged. Design of rear elevation updated. 2nd floor dormer made smaller. of Full Planning Permission reference 23/1425 dated 25 October, 2023, for Proposed creation of basement level with front lightwell, single storey wraparound rear extension with internal courtyard and rear patio, loft conversion with rear dormer and 1 front rooflight, replacement of ground and first floor front windows, new front boundary treatment and associated landscaping

  Refused Amendments Extension Loft or dormer +1 12 docs
  Small domestic

• 37 Summerfield Avenue, London, NW6 6JT

  26/0267 Submitted 3 Feb 2026 50 yards away

  Non material amendment to allow: Change of external materials Reconfiguration of layout of single-storey side infill and rear wraparound extension of Householder planning permission application reference 24/2161 dated 18/11/2024 for Proposed single-storey side infill and rear extension to form a wraparound extension, rear dormer window extension, replacement roof coverings, replacement windows to front and rear elevations, alterations to front boundary wall, cycle and refuse storage and soft and hard landscaping to front, rear courtyard at ground floor and green roof at first floor, installation of 4x rooflights to rear outrigger and installation of 1x rooflight to front of dwellinghouse

  Refused Amendments Extension Loft or dormer +2 12 docs
  Small domestic

• 37 Summerfield Avenue, London, NW6 6JT

  26/0933 Submitted 14 Apr 2026 50 yards away

  Variation of condition 2, development built in accordance with approved drawings (alterations to rear extension) of Householder reference 24/2161 dated 18 November, 2024, for Proposed single-storey side infill and rear extension to form a wraparound extension, rear dormer window extension, replacement roof coverings, replacement windows to front and rear elevations, alterations to front boundary wall, cycle and refuse storage and soft and hard landscaping to front, rear courtyard at ground floor and green roof at first floor, installation of 4x rooflights to rear outrigger and installation of 1x rooflight to front of dwellinghouse

  Granted Amendments Extension Loft or dormer +2 10 docs
  Small domestic

• 7 & 9 Summerfield Avenue, London, NW6 6JT

  24/2525 Submitted 9 Sep 2024 50 yards away

  Single storey wraparound rear extension, loft conversion with rear dormer with 1x rear rooflight, 1x rooflight to outrigger and 1x front rooflight, replacement of roof and windows, new front path treatment and associated landscaping to 7 Summerfield Avenue. Proposed creation of basement level with front lightwell, single storey wraparound rear extension, replacement of roof, loft conversion with rear dormer and rooflight and 1x front rooflight, replacement of ground and first floor windows, new front boundary treatment and associated landscaping to 9 Summerfield Avenue.

  Granted Full applications 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