Planning application
26/04049/FULL
59 Blenheim Terrace London NW8 0EJ
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
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18 Jun 2026
Received by Westminster
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21 Jul 2026
Added to PlanIndex
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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.
Nearby applications
Within 500 metres
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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
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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
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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.
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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.
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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.
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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.
Other full applications applications
In Westminster
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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).
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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)
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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).
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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.
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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.