Planning application
25/06611/FULL
The National Gallery Trafalgar Square London WC2N 5DN
Proposal
Installation of new ventilation plant on the second floor roof of the Conservation Studios at the National Gallery and associated works.
As published by the council, reference 25/06611/FULL
Timeline
Dates from the published record
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16 Sep 2025
Received by Westminster
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30 Oct 2025
Decision issued: Application Permitted
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21 Jul 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
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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25/06612/LBC Granted
The National Gallery Trafalgar Square London WC2N 5DN
Installation of new ventilation plant on the second floor roof of the Conservation Studios at the National Gallery and associated works.
-
26/04136/LBC Awaiting decision
The National Gallery Trafalgar Square London WC2N 5DN
Installation of external condenser units within the western lightwell adjacent to Jubilee Walk at the National Gallery and associated works. (Linked to 26/04135/FULL)
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26/04135/FULL Awaiting decision
The National Gallery Trafalgar Square London WC2N 5DN
Installation of external condenser units within the western lightwell adjacent to Jubilee Walk at the National Gallery and associated works. (Linked to 26/04136/LBC)
-
26/02783/FULL Awaiting decision
The National Gallery Trafalgar Square London WC2N 5DN
Replacement of existing external entrance doors at the St Martins Wing and Portico entrances of The National Gallery. (Linked to 26/02784/LBC)
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26/03249/FULL Awaiting decision
The National Gallery Trafalgar Square London WC2N 5DN
Introduction of extract ventilation at high level within the clerestory, requiring adjustment of modern glazing, introduction of new plant in the rooftop R184 plant room and associated ductwork within the existing roof void, external wall insulation within the Orange Street loading bay to the north wall of Gallery 31, replacement of existing internal louvres with external solar shading fins, modifications and extension of the existing 1980s over-roof structure and replacement of the existing glazing in the over-roofs, replacement of existing lead walkway to perimeter of roofs with new roof membrane, new guarding at roof level, new external metal gantry at the north wall for access to plant equipment. (Linked to 26/03250/LBC)
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26/00257/LBC Granted
The National Gallery Trafalgar Square London WC2N 5DN
Internal alterations at Level -1 of the Sainsbury Wing to reconfigure back-of-house service accommodation, including enlargement of the existing events pantry, formation of a dedicated dishwashing facility, provision of a new janitors cupboard, and installation of a discreet sliding storage wall within the lift lobby.
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