23 Flat A Hampstead Lane Hornsey London Haringey N6 4RT

1. 31 Mar 2026

   Received by Camden

2. 1 Apr 2026

   Validated

   Checked as complete and ready for consideration.

3. 26 Jun 2026

   Decision issued: Refused

4. 24 Jul 2026

   Added to PlanIndex

Camden 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.

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.

• 23 Hampstead Lane Haringey London N6 4RT

  2011/2742/T 50 yards away

  REAR GARDEN: 1 x Sycamore - Remove one of the multiple stems. Reduce crown by previous reduction points (approx. 20%). Thin crown by 25% and deadwood.

  Granted Trees

• Flat A 23 Hampstead Lane London N6 4RT

  2010/4066/P 50 yards away

  Installation of replacement window on front elevation for basement level flat (Class C3)

  Granted Full applications Windows or glazing

• Flat A 23 Hampstead Lane London N6 4RT

  2023/5407/P 50 yards away

  Erection of outbuilding

  Refused Full applications

• Flat A 23 Hampstead Lane London N6 4RT

  2025/3683/P Submitted 21 Aug 2025 50 yards away

  Non-material amendment to planning permission 2023/5037/P (dated 25/07/2024) for 'Lower ground floor rear extension', namely for reduction in depth of the extension.

  Granted Amendments Extension 4 docs

• Flat A 23 Hampstead Lane London N6 4RT

  2026/0492/P Submitted 25 Feb 2026 50 yards away

  Non-material amendment to planning permission 2023/5037/P (dated 25/07/2024) itself amended by 'non-material amendments' under 2025/3683/P (dated 18/09/2025) for 'Lower ground floor rear extension', namely to replace the metal stair in the rear lightwell with solid steps running from the lower ground floor to garden level.

  Granted Amendments Extension 4 docs

• Flat 2 23 Hampstead Lane London N6 4RT

  2024/1043/T Submitted 17 May 2024 50 yards away

  REAR GARDEN: 1 x Pear (T1) - Remove right hand arm growing out of a live stem, which is overhanging the applicant's property. Cut back remaining growth toward the boundary by 1m - 1.5m.

  Granted Trees 10 docs

• 2026/4314/P Awaiting decision

  Basement Flat & Flat Raised Ground Floor 46 Primrose Hill Road London NW3 3AA

  Amalgamation of two self-contained flats to form a self-contained maisonette on lower ground and raised ground floor.

  Received 6 Oct, published by the council 9 Oct 2026 Lawful development
• 2026/4304/P Awaiting decision

  68 Clarence Way London NW1 8DG

  Erection of single storey outbuilding in rear garden.

  Received 2 Oct, published by the council 9 Oct 2026 Lawful development
• 2026/3821/P Granted

  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.

  Received 4 Sep, published by the council 11 Sep 2026 Lawful development
• 2026/3389/P Granted

  99 Heath Street London NW3 6SS

  Confirmation of the implementation of planning permission 2007/3874/P granted, subject to a legal agreement dated 06/12/2007 for 'Change of use from offices (A2) to single family dwellinghouse (C3), the erection of extension at rear ground floor level within courtyard and formation of a terrace over, extension at ground floor level to western end of courtyard, creation of off-street open car parking space and minor elevational changes to The Mount elevation.', by way of erection of the extension at ground floor level to the western end of the courtyard, creation of an off-street car parking space, and minor elevational changes to the Mount elevation.

  Received 7 Aug, published by the council 15 Aug 2026 Lawful development
• 2026/2493/P Granted

  8 Fitzroy Road London Camden NW1 8TX

  Use of the entire building for a single-family home (C3 residential).

  Received 16 Jun, published by the council 24 Jul 2026 Lawful development