21 Bloomsbury Street London WC1B 3HF Data via plota.co.uk

Approved 2025/3687/P - Non Material Amendments
Admin / procedural
Appeal
Allowed · 2 Feb 2026 · Written Representations · Inspectorate case 6000894 ↗
Council
Camden 3.1/10
Date received
21 Aug 2025
Date validated
26 Aug 2025
Decision date
30 Sept 2025
Postcode
WC1B 3HF
Type
Non Material Amendments

Description

Non-material amendments to planning permission granted 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) Data via plota.co.uk

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Last checked

Associated applications 3

Site constraints 10

Bloomsbury conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
2 Article 4 directions
Basements · Commercial, Business, and Service (Use Class E) to residential (Use Class C3) (in CAZ). Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
Archaeological priority area
An assessment or field evaluation may be asked for before ground works.
The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.
Air quality management area: Camden AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
Central activities zone
The core of central London in the London Plan.
Offices, culture and the other strategic functions of the centre take priority over new housing here.
26 listed buildings within 150 m of the postcode pin
Nearest: Number 98 and Attached Railings, Grade II, about 34 m from the postcode pin · 4 Grade I, 4 Grade II*, 18 Grade II
The site itself is not listed. Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Show all 26 with distances
Historic England ↗
National infrastructure project about 984 m away: Thames Tideway Tunnel
The site is about 984 m from the project boundary. Waste water treatment, decided. The project page says whether consent was granted. Also within 2 km: London Strategic Heat Main Project (at pre-application, about 575 m).
Nationally significant infrastructure projects (power stations, electricity lines, pipelines, major roads and railways, harbours, airports and reservoirs) are consented by a Secretary of State under the Planning Act 2008, after an examination by the Planning Inspectorate, rather than by the council. The boundary is the one the Inspectorate consults on and can change as the scheme does. Projects are shown within 2 km of the site.
Planning Inspectorate project page ↗
Registered park or garden about 97 m away: Bedford Square
Its setting is a consideration for work nearby.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Historic England ↗
Also on the record
Inside the Camden built-up area; Public transport access: PTAL 6b (excellent), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 13 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

Building

Floor area106 m² (1,141 sq ft)
Energy ratingA (asset rating 21)
UseOffices and Workshop Businesses
HeatingAir Conditioning

From the energy performance certificate lodged in April 2026, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Historical activity at this location

29 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2024 Approved
Details pursuant to condition 10 (green roofs) of planning permission 2022/4361/P, for; A…
2024/1606/P
2024 Approved
Non material amendments to planning permission 2022/4361/P granted on 09/08/2023 for 'Alt…
2024/1896/P
2022 Approved
Alterations to existing building comprising: rear extension at second to fifth floor leve…
2022/4361/P
2022 Approved
Partial infill of the existing atrium to create additional office floorspace.
2022/0189/P
Within ~100m

Nearby activity

2024 Approved
89 Great Russell Street London WC1B 3PS
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2024/5722/L
2024 Refused
Offices And Premises At Unit 5 Ground Floor 37 Great Russell Street London WC1B 3PP
Change of use of part of the ground floor from Class E (office) to Class C3 (residential)…
2024/5112/P
2024 Approved
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2024/5257/L
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2024/4686/T
2024 Approved
107 Great Russell Street London WC1B 3NA
Display of externally illuminated (trough-lit) fascia sign and non-illuminated projecting…
2024/3904/A
2024 Approved
107 Great Russell Street London WC1B 3NA
Alterations to shopfront elevation in connection with the installation and display of sig…
2024/3897/L
2024 Refused
Offices And Premises At Unit 5 Ground Floor 37 Great Russell Street London Camden WC1B 3PP
Proposed change of use of part of the ground floor from Class E (office) to Class C3 (res…
2024/3047/P
2024 Approved
94-97 Great Russell Street London WC1B 3LB
Display of 1 x non-illuminated fascia sign to side elevation (Bloomsbury Street).
2024/3343/A
2024 Approved
50 Bloomsbury Street London WC1B 3QT
REAR GARDEN: 1 x Sycamore (BS.N2) - Canopy reduction of 3m - 4m. 1 x Sycamore (BN.N1) - C…
2024/4172/T
2024 Approved
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3rd floor rear extension to create a studio flat
2024/1755/P
2024 Approved
89 Great Russell Street London WC1B 3PS
Works to roof including structural reinforcement, relaying and part replacement of slate…
2024/0207/P
2024 Approved
89 Great Russell Street London WC1B 3PS
Works to the roof including its structural reinforcement, relaying and part replacement o…
2024/0260/L
2024 Withdrawn
Offices And Premises At Unit 5 Ground Floor 36-37 Great Russell Street London WC1B 3PP
Conversion of rear part of Ground floor from Class E to Residential C3
2024/2218/P
2023 Approved
ATM 35 Great Russell Street London Camden WC1B 3PP
Display of 1x illuminated ATM sign.
2023/1631/A
2023 Approved
36-37 Great Russell Street London WC1B 3PP
Extension to existing basement at rear; erection of reconstructed ground floor rear exten…
2023/2864/P
2023 Approved
50 Bloomsbury Street London WC1B 3QT
REAR GARDEN: 1 x Maple (T1) - Crown reduction by approx. 2.4m height and spread.
2023/5275/T
2021 Approved
53 Bedford Square London WC1B 3DP
Installation of security fish eye cameras and motion-activity security in basement area o…
2021/0043/L
2023 Approved
36-37 Great Russell Street London WC1B 3PP
Proposed Change of use of part of the ground, first, and second floors from Class E (offi…
2023/2741/P
2023 Withdrawn
46 Bedford Square London Camden WC1B 3DP
External cleaning and general maintenance works to plumbing system (cast iron hoppers and…
2023/4759/NEW
2023 Approved
1 & 2 Bedford Square London WC1B 3RA
External works and building fabric repairs.
2023/1851/L
2016 Approved
53 Bedford Square London WC1B 3DP
Cleaning east facade to Bloomsbury Street and south facade to garden court.
2016/6845/P
2016 Approved
48 Bedford Square London WC1B 3DR
Blocking of non-original duplicate doorway to ground floor rear room and reuse of door to…
2016/6352/L
2016 Approved
36 and 37 Great Russell Street London WC1B 3PP
Infill extension at basement and ground floor level to the rear (Use Class A1).
2016/2795/P
2016 Approved
Offices and Premises 4th Floor 21 Bloomsbury Street London WC1B 3HF
Installation of external condenser unit at roof level.
2016/2187/P
2016 Withdrawn
54 Bloomsbury Street London Camden WC1B 3QT
Replacement of valley gutters at Nos. 54 & 52, floor levelling and replacement of dfectiv…
2016/1014/P
Camden
Planning Authority Score
3.1/10
Poor
#231 of 296 councils
Relevant to this application:
Householder decisions

Camden is slower than most councils at deciding householder applications, ranking #242 out of 296. Householder applications are slightly less likely to be approved here (88%) than the national average (90%).

Slower than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Camden decision statistics
Based on MHCLG data, the year to March 2026
88%
Overall approval rate
Above avg (87%) #149 of 296
88%
Householder approved
Below avg (90%) #215 of 296
49%
Decided in 8 weeks
Below avg (63%) #242 of 296
41%
Extended time limit
Below avg (41%) #158 of 296
90%
Minor dwellings approved
467 decided (1-9 homes)
80%
Major dwellings approved
10 decided (10+ homes)
93%
Change of use approved
46 decided
1,973
Total decisions
234 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.