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Kelvin House 123 Judd Street London WC1H 9NP

2025/3810/PFull Planning PermissionApproved
Full

Approved on 19 August 2026

Council decision: Granted Subject to a Section 106 Legal Agreement34 conditions

Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

Proposal

Partial change of use of building from telephone exchange (Sui Generis) to use as a hotel (Class C1) with retention of existing telephone exchange (Sui Generis) at part of basement and ground floor. Proposed extension with green roofs, PV panels and external alterations to the building. Associated public realm works, including to courtyard. Associated highway and access works RECONSULTATION FOR UPDATED DAYLIGHT/SUNLIGHT REPORT

Received
10 September 2025
Ward
Bloomsbury
  1. Received10 Sep
  2. Validated1 Sep
  3. Consult.
  4. Target30 Nov
  5. Decided19 Aug

Decided in 352 days (council typically 49)

About this application

This is a full planning application for a change of use at Kelvin House 123 Judd Street London WC1H 9NP. Camden has handled 2,296 applications of this type. This one was decided in 352 days, 43 weeks longer than Camden's typical decision time. The site is in the Bloomsbury conservation area. There have been 6 other applications at this address. In the past year there have been 395 applications across Bloomsbury. We hold 813 applications in total for the WC1H postcode area.

90% of full applications at London Borough of Camden were approved. Across all application types, the council typically decides in about 7 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Application details

Postcode
WC1H 9NP
Application type
Full Planning Permission
Scale / size
Large

Planning application dates

Date validated
1 September 2025
Target decision date
30 November 2025

Planning decision

Case officer
Ewan Campbell
Statutory period
81 days

Additional information

Documents
155

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Bloomsbury
  • Article 4 direction: Basements+1 more
  • Flood zone 1: Low probability (rivers and sea)

Possibly incomplete for this council: tree preservation orders.

Also checked, none recorded (21)

flood storage areas, listed buildings, 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, heritage coasts and brownfield registers.

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.

Planning history at this site

6 other applications at this property, newest first.

  1. 2025
    10 Sep

    Observations to adjoining borouugh. Partial change of use of building from telephone exchange (Sui Generis)…

    ApprovedObservations to Adjoining BoroughP2025/2594/OBS
  2. 2025
    10 Sep

    Partial change of use of building from telephone exchange (Sui Generis) for use as a hotel (Class C1) with…

    PendingApplication for obs to adj boroughs25/06526/OBS
  3. 2024
    1 Jul

    Installation of new and replacement doors and alterations to louvres at ground floor to courtyard elevation

    PendingFull Planning Permission2024/2702/P
  4. 2006
    22 Sep

    Installation and retention of 5x additional wall mounted condensing units on north-west elevation at 3rd…

    WithdrawnFull Planning Permission2006/4328/P
  5. 2004
    27 Sep

    Replacement of existing main gate with a roller shutter, installation of new railings and gate and widening…

    ApprovedFull Planning Permission2004/4223/P
  6. 2000
    28 Jun

    The erection of three panel antennas and one radio equipment cabin on the roof of the building, as shown by…

    ApprovedGPDO Prior Approval DeterminationPSX0004762

Source: Camden

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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