Planning application
2022/4361/P
21 Bloomsbury Street London WC1B 3HF
Proposal
Alterations to existing building comprising: rear extension at second to fifth floor levels with associated terraces, relocation of existing sixth floor/roof-top plant enclosure and erection of an additional (sixth storey) of offices on the existing roof (with new dormer windows and louvres in the Bedford Avenue and Bloomsbury Street roofs to serve the new sixth floor extension) formation of pavilion, external terraces and green roof at sixth floor level and on roof of new sixth floor extension (and an extended lift over-run), replacement of windows; alterations to entrances; replacement of faux chimney stacks and associated works.
As published by the council, reference 2022/4361/P
Timeline
Dates from the published record
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9 Aug 2023
Decision issued: Granted Subject to a Section 106 Legal Agreement
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22 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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2014/4034/P Granted
21 Bloomsbury Street London WC1B 3SS
Installation of 2 x air-conditioning units at roof level including external pipework.
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2024/1896/P Granted
21 Bloomsbury Street London WC1B 3HF
Non material amendments to planning permission 2022/4361/P granted on 09/08/2023 for 'Alterations to existing building comprising: rear extension at second to fifth floor levels with associated terraces, relocation of existing sixth floor/roof-top plant enclosure and erection of an additional (sixth storey) of offices on the existing roof (with new dormer windows and louvres in the Bedford Avenue and Bloomsbury Street roofs to serve the new sixth floor extension) formation of pavilion, external terraces and green roof at sixth floor level and on roof of new sixth floor extension (and an extended lift over-run), replacement of windows; alterations to entrances; replacement of faux chimney stacks and associated works'. Proposed amendments consist of : Alterations at lower ground floor level to facilitate installation of a new UKPN substation, including installation of louvres on window and doors and replacement of gate at ground floor level with railings.
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2025/3687/P Awaiting decision
21 Bloomsbury Street London Camden WC1B 3HF
Non-material amendments to planning permission 2022/4361/P, granted subject to a legal agreement on 09/08/2023, for extensions and alterations including an additional storey with a pavilion and terraces on top and rear (south) extensions to all upper floors with terraces. Proposed amendments are at roof level and on rear elevation and include realignment of windows, with some louvres added, amendments to the roof interfaces (at the gables), amended/additional plant on the roof and setting back of the roof balustrade (east elevation)
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2010/0852/P Granted
21 Bloomsbury Street London WC1B 3SS
Installation of new condensing units, replacement of air handling unit and associated ducting at roof level of office building (Class B1).
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2013/6116/P Granted
21 Bloomsbury Street London WC1B 3SS
Installation of an air conditioning unit at roof level in connection with 2nd floor of office building (Class B1).
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2024/1606/P Granted
21 Bloomsbury Street London WC1B 3HF
Details pursuant to condition 10 (green roofs) of planning permission 2022/4361/P, for; Alterations to existing building comprising: rear extension at second to fifth floor levels with associated terraces, relocation of existing sixth floor/roof-top plant enclosure and erection of an additional (sixth storey) of offices on the existing roof (with new dormer windows and louvres in the Bedford Avenue and Bloomsbury Street roofs to serve the new sixth floor extension) formation of pavilion, external terraces and green roof at sixth floor level and on roof of new sixth floor extension (and an extended lift over-run), replacement of windows; alterations to entrances; replacement of faux chimney stacks and associated works.
Other full applications applications
In Camden
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2026/0743/P Granted
34-42 Middlesex House Cleveland Street London W1T 4JE
Details pursuant to Condition 6 (Living Roof) of planning permission 2024/2020/P granted on 12/09/2024 "(Minor refurbishment and rooftop works including: upgraded entrance and reception area; new cycle storage and associated end of trip facilities; new/replaced rooftop plant and plant enclosures; creation of a rooftop amenity area with pavilion structure; hard and soft rooftop landscaping; and all associated and ancillary works)."
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2026/3202/P Awaiting decision
Flat 1 94 Goldhurst Terrace London NW6 3HS
Erection of a single storey rear extension.
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2026/0335/P Granted
216A West End Lane London NW6 1UX
Conversion of 1 x 7 bedroom flat (C3) and 1 x 2 bedroom flat (C3) to 1 x 7 bedroom House in Multiple Occupation (Sui-generis) and 1 x 1 bedroom flat (C3) and installation of four rooflights
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2026/3229/P Awaiting decision
52 Neal Street London WC2H 9PA
Alterations to the shopfront and installation of awnings.
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2026/2160/P Granted
120 College Place London NW1 0DJ
Erection of a rear roof extension, formation of a rear roof terrace and installation of 2x rooflights to front roof slope, and associated works.