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Planning application

26/04049/FULL

59 Blenheim Terrace London NW8 0EJ

Awaiting decision Westminster Full Planning Permission Application

Proposal

Installation of new air conditioning units to the main flat roof.

As published by the council, reference 26/04049/FULL

Timeline

Dates from the published record

  1. 18 Jun 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

What happens while it is decided

The process from here

This application is with Westminster for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

About full applications applications

How this application type works

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

Nearby applications

Within 500 metres

  • 25/06252/TCA Granted

    59 Blenheim Terrace London NW8 0EJ

    1 x Magnolia (T1, rear): Reduce by 1-1.5m 1 x Bay (T2, rear): Reduce by 2.5m

    3 Sep 2025 18m away Trees
  • 25/06255/TCA Granted

    61 Blenheim Terrace London NW8 0EJ

    1 x Silver Birch (T4, rear): Reduce lateral branches overhanging No.59 Blenheim Terrace by about 1.5m; pruning to and retaining suitable shortened growth for furnishing

    3 Sep 2025 18m away Trees
  • 25/06501/TPO Granted

    61 Blenheim Terrace London NW8 0EJ

    1 x Indian bean tree (T1, front): Reduce crown by no more than 1.5-2 metres circa to suitable pruning points, remove any dead or criss-cross branches.

    11 Sep 2025 18m away Trees
  • 25/06254/TCA Granted

    57 Blenheim Terrace London NW8 0EJ

    1 x Silver Birch (T3, rear) - Reduce lateral branches overhanging No.59 Blenheim Terrace by about 1.5m; pruning to and retaining suitable shortened growth for furnishing.

    3 Sep 2025 19m away Trees
  • 25/07777/FULL Awaiting decision

    59 Blenheim Terrace London NW8 0EJ

    Reconfiguration of the front entrance steps up to the raised ground floor and down to the lower ground floor.

    27 Oct 2025 23m away Full applications
  • 26/03476/TPO Awaiting decision

    51 Blenheim Terrace London NW8 0EJ

    Sycamore (T1): Crown reduce to previous, most recent pruning points (approx. 1-2m). Proposed work is to protect the health and stability of trees to be retained on the site, and to ensure that a satisfactory standard of visual amenity is provided and maintained. All specified work is within good arboricultural practice and husbandry.

    27 May 2026 32m away Trees

In Westminster

  • 26/04824/ADFULL Granted

    New Zealand House 80 Haymarket London SW1Y 4TE

    Detailed design and specification of new blinds to NZH based on mock-up trials on-site. pursuant to condition 32 (i) of planning permission dated 8th April 2024 (23/00571/FULL).

    20 Jul 2026 Full applications
  • 26/04829/ADFULL Granted

    New Zealand House 80 Haymarket London SW1Y 4TE

    Details of external and internal signage strategy pursuant to Condition 33(E) of planning permission dated 8th April 2024 (RN: 23/00571/FULL)

    20 Jul 2026 Full applications
  • 26/04841/ADFULL Granted

    29 Henstridge Place London NW8 6QD

    Details of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to condition 5 of planning permission dated 18th November 2025 (RN:25/06159).

    20 Jul 2026 Full applications
  • 26/04989/FULL Awaiting decision

    1 Kildare Terrace London W2 5JT

    Erection of a mansard roof extending over the main house and side wing, replacement lower ground rear extension with roof terrace above, lowering of lower ground floor slab, installation of an air source heat pump in rear garden, new front boundary treatment, and new second floor window on the north elevation.

    24 Jul 2026 Full applications
  • 26/04986/FULL Awaiting decision

    Inver Court Inverness Terrace London W2 6JB

    Replacement of combustible materials in the render facades; timber decking and plastic soffits/ fascias to terraces with non-combustible materials on the 5th and 6th floors.

    24 Jul 2026 Full applications