Planning application
26/03250/LBC
The National Gallery Trafalgar Square London WC2N 5DN
Proposal
Refurbishment works to the Galleries 30 and 31 in the Wilkins Building of the National Gallery including removal of the existing floor grilles and replacement with new cast-iron grilles flush to the adjacent floors, to match adjacent gallery spaces, removal of the existing modern timber floor in Gallery 30 and replacement in new timber boards to match adjacent galleries, refurbishment of remaining floor finishes and stone skirtings, renewal of fabric wall coverings, redecoration of the plaster cornice and coving based on the original design, 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 for supply and extract ventilation and air conditioning, 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, adjustments to gallery lighting internally and new environmental lighting within the roof void, new external metal gantry at the north wall for access to plant equipment. (Linked to 26/03249/FULL)
As published by the council, reference 26/03250/LBC
Timeline
Dates from the published record
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18 May 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 heritage and listed buildings applications
How this application type works
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
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