40 King Henry's Road London Camden NW3 3RP

1. 18 Mar 2026

   Received by Camden

2. 27 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 8 Jun 2026

   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

• 40 King Henry's Road London Camden NW3 3RP

  2025/1790/P Submitted 28 Apr 2025 0m away

  88% historically approved · decision due ~23 Jun

  Installation of air conditioning units

  Awaiting decision Householder 18 docs
  Domestic

• 40 King Henry's Road London Camden NW3 3RP

  2025/1503/P 0m away

  Single storey infill/side extension and alterations including erection of portico to front entrance; removal of rear external spiral staircase; installation of soil vent pipe on side elevation; window and door replacements; removal of existing side door

  Granted Full applications Extension Windows or glazing
  Small domestic

• 40 & 40a King Henry's Road London NW3 3RP

  2025/0723/P 0m away

  Amalgamation of 2 x separate residential units into a single dwelling house (Class C3).

  Granted Full applications
  Domestic

• 44/44a King Henry's Road London NW3 3RP

  2023/3130/P Submitted 1 Nov 2023 21m away

  Alterations to front and rear elevations including installation of new and replacement windows and doors and erection of external staircase to rear. Installation of air source heat pumps to side elevation and solar PV panels to flat roof. Associated external works including paving and fencing to garden.

  Granted Full applications Windows or glazing 33 docs

• 34 A King Henry's Road London NW3 3RP

  2019/6332/P 32m away

  Erection of single storey rear, side and front extensions at lower ground floor level

  Granted Full applications Extension
  Small domestic

• 34 A King Henry's Road London NW3 3RP

  2017/3029/P 32m away

  Single storey rear and side extension and excavating at the front to enlarge the basement.

  Granted Full applications Extension
  Small domestic

• 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