Planning application
26/00451/ADFULL
Royal Institute Of British Architects 66 Portland Place London W1B 1AD
Proposal
Details of the new external fire escape stairs, new pavement lights and supporting structure in the Weymouth Street lightwell,and the new or adjusted balustrades and railings,pursuant to condition 16 (part 4, 5, 6) of planning permission dated 11 June 2025 (RN: 25/01204/FULL)
As published by the council, reference 26/00451/ADFULL
Timeline
Dates from the published record
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26 Jan 2026
Received by Westminster
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3 Mar 2026
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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25/07571/ADLBC Awaiting decision
Royal Institute Of British Architects 66 Portland Place London W1B 1AD
Details of new external fire escape, new pavement lights and supporting structure in the Weymouth Street lightwell, new or adjusted balustrades and railings, new guardrail and glass balustrade, new bronze grilles in the Florence Hall floor, alterations to the stage in the Jarvis Hall and detailed drawings a plan to show the buildings areas of high significance and details of the position, type and method of installiation of services pursuant to Conditions 7 and 8 of Listed Building Consent dated 11 June 2025 (RN25/01205/LBC)
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26/02506/ADLBC Awaiting decision
Royal Institute Of British Architects 66 Portland Place London W1B 1AD
Detailed drawings of the new or adjusted ceilings pursuant to condition 7 (15) of listed building dated 11th June 2025 (RN:25/01205/LBC)
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26/03809/ADLBC Awaiting decision
Royal Institute Of British Architects 66 Portland Place London W1B 1AD
Details of the new lightning protection pursuant to the partial discharge of condition 7 (part 8) of listed building consent dated 11th June 2025 (RN: 25/01205/LBC).
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26/01923/ADLBC Awaiting decision
Royal Institute Of British Architects 66 Portland Place London W1B 1AD
Detailed drawings of the a plan to show the building's areas of high significance and details of the position, type, and method of installation of services and related fixtures, including any fire safety works, in areas designated as "high significance", with particular regard to the Jarvis and Florence Hall, Main Foyer and Central Staircase pursuant to condition 8 of planning permission dated 11th June 2025 (RN:25/01205/LBC)
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25/07253/ADLBC Awaiting decision
Royal Institute Of British Architects 66 Portland Place London W1B 1AD
Details of new external external fire escape stairs, new pavement lights and supporting stucture in the Weymouth Street lightwell, new or adjusted balustrades and railings, new guardrail and glass balustrade in the library new bonze grilles in the Florence Hall floor and alterations to the sgtage in the Jarvis Hall and a plan to show the building's area of high significance and details of the position, type and method of installation of services and related fixtures, including any fire safety works in the areas designed as high significance pursuant to Conditions 7 (4, 5, 6, 11, 12 and 13) and 8 of Listed Building Consent dated 11 June 2025 (RN25/01205/LBC)
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26/04967/ADLBC Withdrawn
Royal Institute Of British Architects 66 Portland Place London W1B 1AD
Details of installation of services and related fixtures pursuant to condition 8 (partial) of listed building consent dated 10 June 2025 (RN: 25/01205/LBC)
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26/04989/FULL Awaiting decision
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26/04986/FULL Awaiting decision
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