40 Leighton Grove London NW5 2QP

1. 1 Sep 2026

   Received by Camden

2. 9 Sep 2026

   Validated

   Checked as complete and ready for consideration.

3. 10 Sep 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 4 November 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Camden took a median of 42 days over the applications it decided in the last year.

This application is with Camden for determination, against a statutory target of eight weeks. Over the last year Camden decided lawful development applications in a median of 53 days. More in our guide to how long planning decisions take.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 39A Leighton Grove London NW5 2QP

  2015/4466/P 8m away

  Replacement of existing timber door and windows with timber casement and hardwood sash windows and traditional composite door on front and rear elevations.

  Granted Full applications Windows or glazing

• 2nd Floor Flat 38 Leighton Grove London NW5 2QP

  2026/2696/P Submitted 3 Jul 2026 13m away

  Erection of mansard style roof extension with front and rear dormers and rear roof terrace

  Refused Full applications Extension Loft or dormer 9 docs

• 38 Leighton Grove London NW5 2QP

  2016/1523/P 13m away

  Erection of a mansard roof extension and conversion of 1st/2nd floor maisonette to 1 x 1 bedroom flat and 1 x 2 bedroom maisonette.

  Refused Full applications Extension Loft or dormer

• Flat 1st and 2nd Floor 38 Leighton Grove London NW5 2QP

  2016/3070/P 13m away

  Conversion of 2 bedroom maisonette into 1 x 1 bed flat and 1 x studio flat; and redesign of the front garden to provide cycle and refuse storage.

  Granted Full applications

• 38 Leighton Grove London NW5 2QP

  2015/6936/P 13m away

  Erection of single storey rear extension.

  Granted Full applications Extension
  Small domestic

• Flat A 38 Leighton Grove London NW5 2QP

  2016/4308/P 13m away

  Variation of condition 3 (approved plans) of planning permission 2015/6936/P dated 03/02/2016 (for the erection of single storey rear extension), namely to change the sloped element of the proposed roof to a flat roofed section.

  Granted Full applications Extension
  Small domestic

• 2026/3718/P Awaiting decision

  7, Allison Court 43 Parkhill Road London NW3 2YD

  Installation of white external solar / heat reflective blinds to 2nd floor rear windows, fitted immediately below eaves soffit within window reveals.

  7 Sep 2026 Lawful development
• 2026/3821/P Awaiting decision

  Plots B, C and D at Highgate Studios Highgate Road London NW5 1TL

  Certificate of Lawful Development to confirm the lawful use of the site is for office use (Class E(g)(i)) and that the use of the site as a gym (Class E(d)) or any other use falling within Class E would be lawful.

  4 Sep 2026 Lawful development
• 2026/3464/P Awaiting decision

  Flat 1st Floor 6 Hilltop Road London NW6 2PY

  Use of external area on top of projecting angular rear bay as a balcony.

  4 Sep 2026 Lawful development
• 2026/2929/P Granted

  30 Grove Place London NW3 1JR

  Certificate of lawfulness (proposed) for the erection of PV panels on the roof and an ASHP in the lower ground floor lightwell at the rear of the property.

  13 Jul 2026 Lawful development
• 2026/3827/P Awaiting decision

  36 Leighton Grove London NW5 2QP

  Replacement of existing timber single-glazed sliding sash windows to front and rear elevations with matching timber heritage-style double-glazed sash windows, and replacement of existing timber front entrance doors with matching timber doors.

  1 Sep 2026 Lawful development