Planning application
47 Devonshire Mews South London W1G 6QP
Works: Loft or dormer
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Amendments to planning permission dated 12 August 2010 (RN:10/03423) for the creation of an internal room in the place of the originally proposed small roof terrace, set behind an area of dummy mansard roof, to the front of the property at second floor level.
As published by the council, reference 11/11532/NMA
Application record
- Reference
- 11/11532/NMA
- Type
- Non-material amendments
- Status
- Decided
- Decision
- Granted As published: Application Permitted
- Received
- 28 Nov 2011
- Validated
- 28 Nov 2011
- Decided
- 20 Dec 2011
- Ward
- Marylebone High Street
- Decision by
- Delegated Decision
- Postcode
- W1G 6QP
Site history
Applications at this address on the Westminster register
This site has had 2 applications since 2011: 2 approved, 0 refused.
-
11/02568/ADFULL Granted
47 Devonshire Mews South London W1G 6QP
Approval of details pursuant to Condition 3 of planning permission dated 12 August 2010 (RN:10/03423); namely the submission of samples of the facing materials including glazing.
Timeline
Dates from the published record
-
28 Nov 2011
Received by Westminster
-
20 Dec 2011
Decision issued: Application Permitted
-
20 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Osel Architecture Ltd. Agent, an architecture practice registered in London
Active · incorporated 1996 · London
40 applications on PlanIndex · across 8 councils · 92% granted
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Plans, drawings, consultee responses and the officer's report
4 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
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Open the documentsWhat this grant of permission means
Westminster granted permission on 20 December 2011, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About amendment applications
An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
47 Devonshire Mews South London W1G 6QP
Approval of details pursuant to Condition 3 of planning permission dated 12 August 2010 (RN:10/03423); namely the submission of samples of the facing materials including glazing.
Granted Full applications Windows or glazing 3 docs -
113 - 115 Harley Street London W1G 6AP
90% historically approved · decision due ~28 Oct
Installation of a platform lift to the basement area at 113-115 Harley Street to the Devonshire Street (north) side of the property. (Linked with 26/04266/FULL)
Decided Heritage and listed buildings -
113 - 115 Harley Street London W1G 6AP
88% historically approved · decision due ~28 Oct
Installation of a platform lift to the basement area at 113-115 Harley Street to the Devonshire Street (north) side of the property. (Linked with 26/04267/LBC)
Decided Full applications -
9 Upper Wimpole Street London W1G 6LJ
Use of lower ground floor level for medical purposes (Class D1), installation of air conditioning unit in rear lower ground floor courtyard and one under the front lightwell staircase.
Granted Full applications 15 docs -
9 Upper Wimpole Street London W1G 6LJ
Use of lower ground floor level for medical purposes (Class D1) in association with internal alterations and the installation of air conditioning unit in rear lower ground floor courtyard. (part of land use swap with 122 Harley Street, 134 Harley Street, 40 Harley Street and 52 Harley Street).
Granted Heritage and listed buildings 3 docs -
9 Upper Wimpole Street London W1G 6LJ
Internal alterations at lower ground floor
Withdrawn Heritage and listed buildings 3 docs
Other amendment applications
In Westminster
-
26/07181/NMA Awaiting decision
Newlands House 37 - 40 Berners Street London W1T 3NA
Amendments to planning permission dated 9th October 2025 (RN:25/04048/FULL) forInfilling of the ground floor undercroft along Mortimer Street (Class E), replacement of ground floor frontage to the whole building and refurbishment of the upper floor facades. Namely, alterations to the approved green roof area at the site.
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26/07132/NMA Awaiting decision
157 - 159 Victoria Street London SW1E 5NA
Amendments to planning permission dated 27 August 2026 (RN: 26/04666/FULL) for the: Installation of combined defibrillator and bleed kit cabinets to external wall of Nationwide Building Society branch. NAMELY, to allow alteration to design of combined defibrillator and bleed kit cabinet.
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26/07086/NMA Awaiting decision
Windsor House 50 Victoria Street London SW1H 0TL
Amendments to planning permission dated 18th September 2026 (RN 26/01445/FULL) for the Refurbishment of Windsor House and Christchurch House (excluding residential part), including re-cladding and amendment of facades, replacement of windows, new end-of-trip facilities, installation of roof-level plant and screening, and associated works, to provide office, retail, restaurant and indoor recreation accommodation (Class E) with amenity spaces, including a new roof level pavilion to Christchurch House and link bridge between Windsor House and Christchurch House. NAMELY, amendments to the wording of Conditions 1, 11, 12, 13,14, 15 and 26.
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26/07071/NMA Awaiting decision
London School Of Economics & Political Science Houghton Street London WC2A 2AE
Amendments to planning permission dated 21st Februrary 2018 (RN:17/05855/FULL) for Variation of Condition 1 of planning permission dated 19 October 2016 (RN:16/05155/FULL) for demolition of existing buildings known as Clare Market, The Anchorage, the East Building, St Clements (partial) and Tower One (partial) and redevelopment to provide replacement interconnected academic facilities for Class D1 and ancillary uses, comprising a two storey basement, a part six storey / part 13 storey building and a seven storey core extension to the St Clements building and associated cycle parking and other works; all arranged around a new public square namely, removal of two cycle stands.
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26/06211/NMA Decided
15 Portland Place London W1B 1PT
Amendments to planning permission dated 21 July 2022 (RN:22/03521/FULL) which varied Condition 5 of planning permission dated 11 April 2018 (17/10815/FULL) for: Use of the building for a temporary period of 20 years as a medical use (Use Class D1) personal to OM Tower LLP namely to amend the wording of Condition 3 to omit the words " No one else may benefit from this permission" to allow the use by third party practitioners.