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257-259 Grays Inn Road London WC1X 8QT

2006/5177/PFull Planning PermissionApproved
Full

Approved on 8 October 2007

Council decision: Granted Subject to a Section 106 Legal AgreementPlanning committee

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

The change of use of the upper floors from office use (Class B1) to 6x residential flats (Class C3) incorporating the erection of a rear extension on all floors, a new mansard roof to no. 257, and the formation of a new front lightwell for the basement office use.

Received
15 November 2006
Decision level
Planning committee
Ward
Kings Cross
  1. Received15 Nov
  2. Validated22 Jan
  3. Consult.14 Feb
  4. Target15 Jun
  5. Decided8 Oct

Decided in 259 days (council typically 49)

About this application

This is a full planning application for a rear extension at 257-259 Grays Inn Road London WC1X 8QT. Camden has handled 2,296 applications of this type. This one was decided in 327 days, 40 weeks longer than Camden's typical decision time. The site is in the King's Cross and St Pancras conservation area, with 2 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 143 applications across Kings Cross. We hold 1,230 applications in total for the WC1X 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
WC1X 8QT
Application type
Full Planning Permission
Development type
B1a Business - Office, C3 Dwelling House
Scale / size
Medium

Planning application dates

Date validated
22 January 2007
Consultation expiry
14 February 2007
Consultation start
24 January 2007
Consultation end
14 February 2007
Last date for comments
16 February 2007
Target decision date
15 June 2007
Committee meeting
24 May 2007
Permission expires
8 October 2010

Planning decision

Statutory period
144 days

Publicity

Site notice start
26 January 2007

Additional information

Documents
12

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Kings Cross St Pancras
  • 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.

Source: Camden

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

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