The National Gallery Trafalgar Square London WC2N 5DN
Approved on 1 July 2026
Council decision: Application Permitted
Proposal
External alterations to the Wilkins Building comprising installation of rooftop plant and ductwork, modifications and extension of over-roof structures, replacement roof finishes and glazing, installation of solar shading fins and external wall insulation, new roof-level guarding, and formation of an external gantry for plant access.
- Received
- 18 May 2026
- Council
- City of Westminster
- ReceivedReceived18 May
- ValidatedValidated18 May
- Consult.Consultation
- TargetTarget Date
- DecidedDecided1 Jul
Decided in 44 days
About this application
This is a planning application for an extension at The National Gallery Trafalgar Square London WC2N 5DN. Westminster has handled 27,078 applications of this type. This one was decided in 44 days, 5 days quicker than Westminster's typical decision time. The site is in the Trafalgar Square conservation area, with 13 listed buildings nearby. There have been 25 other applications at this address. We hold 300 applications in total for the WC2N postcode area.
Application details
- Postcode
- WC2N 5DN
Planning application dates
- Date validated
- 18 May 2026
Site constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Trafalgar Square+1 more
- Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
- Brownfield land register: Hobhouse Court LondonRegister site at or near this address
- Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (20)
flood storage areas, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves and heritage coasts.
A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.
Data © Crown copyright and others · sources and licences
Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.
© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.
© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.
© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.
Contains Ordnance Survey data © Crown copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.
Associated applications
- 202618 May
External alterations to the Wilkins Building comprising installation of rooftop plant and ductwork…
This applicationApprovedApplication26/03249/FULL - 202618 May
Refurbishment works to the Galleries 30 and 31 in the Wilkins Building of the National Gallery including…
ApprovedListed building consentRelated26/03250/LBC
Planning history at this site
20 other applications at this property, newest first.
- 202625 Sep
Changes to the wall finishes and flooring configuration, repairs the marble skirting and architraves…
PendingListed building consent26/06597/LBC - 202615 Sep
Display of no illuminated hoarding measuring 12.5m X 3.6m, 6.6m X 3.6m, 12.6m X 3.6m, 12.6m X 3.6m and 7.8m X…
ApprovedAdvertisement consent26/06130/ADV - 202623 Jun
Installation of external condenser units within the western lightwell adjacent to Jubilee Walk at the…
ApprovedListed building consent26/04136/LBC - 202623 Jun
Installation of external condenser units within the western lightwell adjacent to Jubilee Walk at the…
ApprovedFull26/04135/FULL - 20261 May
Reconfiguration and refurbishment of cafe and restaurant WC facilities within the Wilkins Building.
ApprovedListed building consent26/02901/LBC - 202627 Apr
Replacement of existing external entrance doors at the St Martins Wing and Portico entrances of The National…
ApprovedFull Planning Permission Application26/02783/FULL - 202627 Apr
Replacement of existing external entrance doors at the St Martins Wing and Portico entrances of The National…
ApprovedListed building consent26/02784/LBC - 202615 Apr
Details of all new CCTV, new windows and new staircase to the Wilkins Building, internal walls, ceilings…
ApprovedListed building consent26/02533/ADLBC - 202615 Apr
Details of the all new CCTV and details of the new windows to the Wilkins Building pursuant to condition 6…
ApprovedDischarge of conditions26/02487/ADFULL - 202615 Apr
Display of an internally illuminated digital screen measuring 1.26m x 0.73m.
ApprovedAdvertisement consent26/02490/ADV - 202615 Apr
External and internal alterations, including remodelling of external gates, replacement glazing and adaption…
ApprovedListed building consent26/02489/LBC - 202615 Apr
Amendments to planning permission dated 19 December 2022 (RN: 22/04894/FULL
ApprovedNon-material amendment26/02488/NMA - 20265 Mar
Details of the lighting trial, lighting levels and colour pursuant to Condition 4 of listed building consent…
ApprovedListed building consent26/01506/ADLBC - 20265 Mar
Details of the lighting trial, lighting levels and colour pursuant to Condition 4 of planning permission…
ApprovedDischarge of conditions26/01410/ADFULL - 20263 Mar
Details of completed Appendix A checklist demonstrating compliance with the Code of Construction Practice…
ApprovedDischarge of conditions26/01355/ADFULL - 202623 Feb
Details of written scheme of investigation addendum for Phase 2, archaeological investigations pursuant to…
ApprovedDischarge of conditions26/01120/ADFULL - 202616 Jan
Internal alterations at Level -1 of the Sainsbury Wing to reconfigure back-of-house service accommodation…
ApprovedListed building consent26/00257/LBC - 20267 Jan
G1 6 x London plane: crown reduce to previous, most recent reduction points
PendingApplication26/00071/TCA - 202518 Dec
Detailed drawing of the proposed inscription, which must only be in commemoration of the re-opening of the…
ApprovedListed building consent25/09182/ADLBC - 202516 Sep
Installation of new ventilation plant on the second floor roof of the Conservation Studios at the National…
ApprovedFull Planning Permission Application25/06611/FULL
Source: Westminster
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Around this site
Nearby applications
- The National Gallery Trafalgar Square London WC2N 5DN25/06611/FULL · FullApproved0.0 mi
- The National Gallery Trafalgar Square London WC2N 5DN26/02784/LBC · HeritageApproved0.0 mi
- The National Gallery Trafalgar Square London WC2N 5DN26/02783/FULL · FullApproved0.0 mi
- The National Gallery Trafalgar Square London WC2N 5DN25/06612/LBC · HeritageApproved0.0 mi
- The National Gallery Trafalgar Square London WC2N 5DN26/01120/ADFULL · ConditionsApproved0.0 mi
For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Avent Roofing ServicesVerifiedWestminsterRoofing0.5 mi
- Atlas South Technical Service LimitedVerifiedLondonProperty MaintenanceHandyman1.2 mi
- Orient Construction Consultancy LimitedVerifiedLondon3.6 mi
- Nova Coat & PlasterVerifiedStreatham, LondonRenovations & RefurbishmentsPlastering4.9 mi
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