54 Ainger Road London NW3 3AH

1. 11 Aug 2025

   Received by Camden

2. 4 Sep 2025

   Validated

   Checked as complete and ready for consideration.

3. 6 Nov 2025

   Decision issued: Refused

4. 9 Aug 2026

   Added to PlanIndex

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 54 Ainger Road London NW3 3AH

  2026/3159/P Submitted 27 Jul 2026 0m away

  94% historically approved · decision due ~6 Oct

  Certificate of lawful development for the existing use of the HMO as a small HMO(C4).

  Awaiting decision Lawful development 7 docs

• 55 Ainger Road London NW3 3AH

  2019/3289/P Submitted 27 Jun 2019 5m away

  Roof extension involving erection of rear dormer and insertion of 1x front rooflight.

  Granted Full applications Extension Loft or dormer 5 docs

• 21 Gascony Avenue London Camden NW6 4NB

  2025/3416/P 6m away

  91% historically approved

  Erection of a single storey rear/side infill extension and removal of a side window on the first floor.

  Awaiting decision Full applications Extension Windows or glazing
  Small domestic

• 21 Gascony Avenue London Camden NW6 4NB

  2025/5687/P Submitted 16 Dec 2025 6m away

  Erection of a single story rear/side extension with new windows and rooflights and removal of a side window on the first floor and installation of a new metal balustrade to existing rear terrace.

  Granted Householder Extension Loft or dormer +1 4 docs
  Domestic

• Flat 2 53 Ainger Road London NW3 3AH

  2023/5152/P Submitted 5 Dec 2023 6m away

  Erection of a single storey rear outbuilding

  Granted Full applications 11 docs
  Small domestic

• Rear garden of 53 Ainger Road London NW3 3AH

  2010/1536/P 6m away

  Erection of a privacy/shade canopy in rear garden.

  Withdrawn Full applications

• 2026/3669/P Awaiting decision

  64 Westcroft Close London NW2 2RR

  Demolition of existing conservatory and erection of a single storey rear extension.

  26 Aug 2026 Lawful development
• 2026/3405/P Granted

  Flat A and Flat B 23 Ravenshaw Street London NW6 1NP

  Amalgamation of Flat 23A and Flat 23B to form one dwellinghouse (Use Class C3), including, insofar as required, the change of use of Flat 23B from a small house in multiple occupation (Use Class C4) to a dwellinghouse (Use Class C3), together with removal of an internal blockwork partition wall.

  3 Aug 2026 Lawful development
• 2026/3591/P Awaiting decision

  22 Ulysses Road London NW6 1EE

  Erection of an outbuilding within rear garden.

  21 Aug 2026 Lawful development
• 2026/3566/P Awaiting decision

  41 & 43 King Henry's Road London NW3 3QR

  Subdivision and use of the buildings as two separate residential dwellings.

  19 Aug 2026 Lawful development
• 2026/3527/P Awaiting decision

  303 Flat Ground Floor Rear Studio West End Lane London Camden NW6 1RD

  Use of ground floor studio flat as single dwelling unit (Class C3)

  18 Aug 2026 Lawful development