Planning application
10/10084/NMA
13-14 Devonshire Street London W1G 7AE
Proposal
Amendments to approved scheme (RN:10/02378/FULL) for temporary use of basement, ground, and first floors at Nos. 13 and 14 Devonshire Street and second floor at No.13 Devonshire Street as (Class D1) medical use. Permanent use of third and fourth floors at Nos. 13 and 14 Devonshire Street and second floor at No.14 Devonshire Street as medical use. Infill of rear lightwell with glazed roof at basement and ground. Installation of new plant equipment within enclosure at rear boundary at ground floor level. (Part of a land use swap with 18 Upper Wimpole Street and 20 Upper Wimpole Street), namely the formation of two doorways into rear basement lightwell.
As published by the council, reference 10/10084/NMA
Timeline
Dates from the published record
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19 Nov 2010
Received by Westminster
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7 Dec 2010
Decision issued: Application Permitted
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29 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 amendments applications
How this application type works
An amendment application changes a permission that already exists. Non-material amendments cover small adjustments with no wider effect, while minor material amendments, usually made by varying a condition, allow modest design changes without a fresh application. Anything beyond that needs a new permission, so the scope here is deliberately narrow.
Nearby applications
Within 500 metres
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11/05395/ADLBC Granted
13-14 Devonshire Street London W1G 7AE
Approval of details pursuant to Condition 4 of listed building consent dated 7 December 2010 (RN:10/10124), namely detailed drawings of the proposed doors.
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10/07823/ADFULL Granted
13-14 Devonshire Street London W1G 7AE
Approval of details pursuant to Condition 9 (ii), partial 9 (iii) and partial 9 (iv) of planning permission dated 7 July 2010 (RN: 10/02378) namely, residential conversion works of 20 Upper Wimpole Street at ground and basement level. notification and site inspection in accordance with planning permission dated 16.1.2008 (RN: 08/09501/FULL).
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10/03179/ADLBC Granted
13-14 Devonshire Street London W1G 7AE
Details of drawings of strong room door pursuant to Condition 4 (part) of listed building consent dated 16 February 2010 (RN: 09/09893).
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05/08788/AD7 Granted
17 Devonshire Street London W1G 7AG
Display for a temporary period of six months of a non-illuminated 'to let' board attached to the railings in front of the building at street level and measuring 0.6m x 0.45m.
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12/07227/ADFULL Granted
Third Floor Flat 17 Devonshire Street London W1G 7AG
Approval of details pursuant to Condition 3 of planning permission dated 15 July 2010 (RN:09/07825); namely confirmation that works to convert the ground floor of 1A Upper Wimpole Street into residential accommodation in connection with the use of the ground, first and second floors of the building as a maisonette has been completed.
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05/03281/FULL Granted
17 Devonshire Street London W1G 7AG
Removal of Condition 1 of permission dated 15 December 1988 (RN: 885728) namely, limiting office use to professional occupiers; to allow for unrestricted office use (Class B1) at basement, ground, mezzanine, first and second floors.
Other amendments applications
In Westminster
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26/04962/NMA Awaiting decision
Serpentine Gallery Kensington Gardens Exhibition Road London W2 3XA
Amendments to planning permission dated 27 February 2025 (RN: 24/08940/FULL) for the installation of temporary art sculpture from 24 March 2025 to 09 September 2025; NAMELY to extend the temporary planning consent until 21st March 2027.
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26/04951/NMA Awaiting decision
43 - 45 Portman Square London W1H 6LY
Amendments to planning permission dated 22 April 2026 (25/06153/FULL) for: Variation of Condition 1 of planning permission dated 7 April 2025 (24/04987/FULL) for: Partial demolition of the existing roof and removal of plant equipment; construction of a roof extension providing new office (Class E) floorspace with associated external amenity spaces and plant equipment; refurbishment of the existing building, including infilling of the existing atrium; alterations to the existing façade; provision of cycle parking spaces and end of journey facilities, and all associated and ancillary works NAMELY; to amend the wording of Condition 27 to allow basement demolition work to proceed.
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26/04873/NMA Awaiting decision
Orbis House 5 Mansfield Street London W1G 9NG
Amendments to planning permission dated 05 September 2024 (RN: 24/01895/FULL) for: new courtyard surface including walk-on rooflight; window and door alterations; new window to Mansfield Mews at second floor level; new rooflights; repairs to roof and external brickwork; erection of new staircase in front area lightwell; partial infill of rear lightwell at ground floor level; erection of roof terrace; installation of PV panels at roof level; and associated works namely; to allow provision of guarding system to provide safe access for maintenance across the roof; alteration at south elevation omitting window SFW11 from the new WC, remove the existing RWP from the internal courtyard corner, removal of the existing plastic section of a redundant vent pipe at lower level and retain original lead; new cast iron rain water pipes at west elevation; and internal layout alterations at basement, ground, 2nd, 3rd floors. (Linked with 26/04876/LBC)
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26/04870/NMA Awaiting decision
34 Park Street London W1K 2JD
Amendments to planning permission dated 8 May 2026 (25/07808/FULL) for general refurbishment and M&E upgrade of the office building namely; roof walkable skylight, GF meeting room wall mounted TV, garden bench and planters, fire lobbies, L4 glass partition, reception to hall door swing change, front lightwell electric cupboard change, wall panelling on LGF and L5, LGF modular screen, LGF courtyard window door infill, and LGF cove lighting.
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26/04816/NMA Awaiting decision
Ebury Bridge Estate Ebury Bridge Road London SW1W 8PX
Amendments to planning permission dated 21 July 2023 (RN:23/00331/COOUT) for a mixed use development in outline for residential floorspace and ancillary residential facilities (Class C3) non-residential floorspace comprising flexible retail (Classes A1 - A4), community (Class D1), leisure (Class D2) and workspace (Class B1) floorspace; provision of basement; new pedestrian and vehicular access; and associated amenity space, open space, plant, landscaping, car and cycle parking, refuse storage, servicing area, and other associated infrastructure works; and detailed planning consent for Blocks 7 and 8 comprising residential floorspace and ancillary residential facilities (Class C3); provision of a basement; new pedestrian and vehicular access; and associated amenity space landscaping, car and cycle parking, refuse storage, servicing area, and other associated infrastructure works, namely amendments to the approved Masterplan Phasing to incorporate enabling works and piling in Phase 2a and 3a.