17 Hornby Close London NW3 3JL

This site has had 2 applications since 2026: 2 approved, 0 refused.

• 2026/1233/P Granted

  17 Hornby Close London NW3 3JL

  Erection of additional (second) storey.

  Decided 13 May 2026 Full applications

1. 13 Feb 2026

   Received by Camden

2. 25 Feb 2026

   Validated

   Checked as complete and ready for consideration.

3. 26 Mar 2026

   Decision issued: Granted

4. 9 Aug 2026

   Added to PlanIndex

Camden granted permission on 26 March 2026, 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.

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.

• 17 Hornby Close London NW3 3JL

  2026/1233/P Submitted 13 Feb 2026 50 yards away

  Erection of additional (second) storey.

  Granted Full applications 15 docs

• 18 Hornby Close London NW3 3JL

  2026/1634/P Submitted 23 Apr 2026 50 yards away

  Replacement of the garage door with a window in association with the use of the garage as habitable space.

  Granted Householder Windows or glazing 9 docs
  Domestic

• 12 Hornby Close London NW3 3JL

  2023/2389/P 50 yards away

  Erection of additional storey to the existing dwellinghouse.

  Granted Full applications
  Domestic

• 12 Hornby Close London NW3 3JL

  2023/2232/P 50 yards away

  Replacement garage door with louvre door to the front elevation.

  Granted Full applications

• 1-161 Taplow Adelaide Road London NW3 3NU

  2020/3958/P 50 yards away

  Installation of 6 pole mounted antennas (2 each on 3 poles), 3 cabinets, 3 dishes and 3 RRU's (remote control radio units) fixed to poles on a tripod frame (5 on each tripod).

  Granted Full applications

• 10 Hornby Close London NW3 3JL

  2020/1881/P 50 yards away

  Erection of a single storey rear garden extension, garage conversion and alteration of front garage door.

  Granted Full applications Extension
  Small domestic

• 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