2012/5323/L

1. 12 Dec 2012

   Decision issued: Refused

2. 22 Jul 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.

Heritage applications concern listed buildings and conservation areas. Listed building consent is needed for works, inside or out, that affect the special interest of a listed building, and carrying out such works without consent is a criminal offence. The council weighs harm to the heritage asset against any public benefit of the proposal.

More on heritage and listed buildings applications in our guide

• 2012/5536/P Refused

  12 Cannon Place London NW3 1EJ

  Erection of a single storey rear extension following demolition of existing conservatory to dwelling house (Class C3)

  12 Dec 2012 0m away Full applications
• 2017/0175/T Granted

  Cannon Lodge 12 Cannon Place London NW3 1EJ

  (TPO REF 10H) REAR GARDEN: 1 x Plane - Thin crown by 15%

  31 Jan 2017 0m away Trees
• 2023/4935/T Granted

  12 Cannon Place London NW3 1EJ

  REAR GARDEN: 1 x Ginkgo (T1) - Reduce height and lateral branches by approx. 1m - 2m.

  27 Dec 2023 0m away Trees
• 2022/3539/T Granted

  12 Cannon Place London NW3 1EJ

  REAR GARDEN: 1 x London Plane (T1) - Thin by up to 15%, selectively reduce over-longs to balance crown (max. 2m - 3m extension growth), remove epicormic stem & basal growth, lift canopy by 1m - 2m to uniform line.

  24 Oct 2022 0m away Trees
• 2025/0322/T Granted

  12 Cannon Place London NW3 1EJ

  (TPO REF: 10H-T56) REAR GARDEN: 1 x London Plane (T1) - Thin by up to 15%, selectively reduce over-long branches to balance crown, (max. 2m - 3m extension growth). Remove epicormic stem & basal growth. Lift canopy by 1m - 2m to uniform line.

  26 Feb 2025 0m away Trees
• 2017/0051/T Granted

  12 Cannon Place London NW3 1EJ

  (TPO REF 10H) REAR GARDEN: 1 x Plane - Remove epicormic growth and water shoots up to 20m

  3 Mar 2017 0m away Trees

• 2026/3248/L Awaiting decision

  15 Eton Villas London NW3 4SG

  Single storey rear extension, internal reconfigurations, installation of double-glazed windows and doors, new air-conditioning units, landscaping to rear garden and erection of outbuilding amongst other alterations to the property.

  30 Jul 2026 Heritage and listed buildings
• 2026/3213/L Awaiting decision

  51, 53, 55, 57 Lamb's Conduit Street London Camden WC1N 3NB

  Installation of gas infrastructure including an external gas riser, associated pipework, and internal alterations comprising the relocation of gas meters and associated connections

  29 Jul 2026 Heritage and listed buildings
• 2026/2318/L Granted

  90 Frognal London NW3 6XB

  Structural strengthening of underground vault and underpinning of northern side of ground-floor boot room.

  5 Jun 2026 Heritage and listed buildings
• 2026/2136/L Granted

  45 Downshire Hill London NW3 1NU

  Proposed repair and replacement of front elevation windows with matching single glazed timber sash units. Replacement modern French doors in slim-profile double glazing. Rear windows retained, and repaired as required.

  26 May 2026 Heritage and listed buildings
• 2026/2122/L Granted

  6 Royal College Street London NW1 0TH

  Various internal and external changes, including replacement and alteration to timber windows, adjustments to internal layout, installation of fire-rated doors and emergency lighting, relocation and rearrangement of bathroom and kitchen (retrospective).

  26 May 2026 Heritage and listed buildings