Planning application
1 Hanover Street London W1S 1YZ
Works: Extension 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 27th March 2024 (RN: 23/08783/FULL) for, "Installation of new front and end-of-trip facilities entrances on Hanover Street; alterations to the internal atrium; replacement of roof structures and upgrading plant and creating new pavilion and terrace on the roof; introduction of a new mansard roof onto Hanover Street; infill extension on Princes Street at 5th and 6th floor; alterations to the Cupola; replacement of existing artwork; reorganisation of internal partitioning; and associated works"; Namely, to allow retention of perimeter balustrades, relocation of light box on Hanover Street, alterations to facade to display public artwork, and amendments to cladding system of core.
As published by the council, reference 25/08273/NMA
Application record
- Reference
- 25/08273/NMA
- Type
- Non-material amendments
- Status
- Decided
- Decision
- Application Permitted
- Received
- 12 Nov 2025
- Validated
- 4 Mar 2026
- Decided
- 31 Mar 2026
- Ward
- West End
- Decision by
- Delegated Decision
- Postcode
- W1S 1YZ
Site history
Applications at this address on the Westminster register
This site has had 13 applications since 2025: 8 approved, 0 refused.
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26/03877/ADLBC Decided
1 Hanover Street London W1S 1YZ
Detailed method statement of the façade repairs and cleaning proposed pursuant to condition 6 of Listed Building Consent dated 25th October 2024 (RN:24/06431).
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26/03336/ADV Awaiting decision
1 Hanover Street London W1S 1YZ
Display of non illuminated hoarding signage measuring 2.44m x 1.22m.
-
26/02288/LBC Awaiting decision
1 Hanover Street London W1S 1YZ
Installation of a smoke extract duct within existing lightwell. (Linked with 26/02287/FULL)
-
26/02287/FULL Awaiting decision
1 Hanover Street London W1S 1YZ
Installation of a smoke extract duct within existing lightwell. (Linked with 26/02288/LBC)
-
26/01161/ADLBC Granted
1 Hanover Street London W1S 1YZ
Details of facing materials pursuant to condition 3 (partial) of listed building consent dated 24 October 2024 (RN: 24/06431/LBC)
-
26/00719/ADFULL Granted
1 Hanover Street London W1S 1YZ
Detailed drawings (scale 1:5 and 1:20) and labelled photographs of samples of the facing materials (for mansard) including glazing, and elevations and roof plans annotated to show where the materials are located pursuant to condition 4 (partial) of planning permission dated 27 March 2024 (RN: 23/08783/FULL). [Linked to 26/00700/ADLBC]
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26/00700/ADLBC Granted
1 Hanover Street London W1S 1YZ
Detailed drawings (scale 1:5 and 1:20) and labelled photographs of samples of the facing materials, including glazing, and elevations and roof plans annotated pursuant to condition 3 (partial) of listed building consent dated 25 October 2024 (RN: 24/06431/LBC)
-
26/00038/ADLBC Granted
1 Hanover Street London W1S 1YZ
Detailed drawings and photos of samples of the facing materials including glazing pursuant to Condition 3 (part) of listed building consent dated 27th March 2024 (RN: 23/08787/LBC).
-
26/00041/ADFULL Granted
1 Hanover Street London W1S 1YZ
Detailed drawings and photos of samples of the facing materials including glazing pursuant to Condition 4 (part) of planning permission dated 27th March 2024 (RN: 23/08783/FULL).
-
25/08419/ADLBC Granted
1 Hanover Street London W1S 1YZ
Details of photographs of samples of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to condition 3 (partial) of listed building consent dated 27 March 2024 (RN: 23/08787/LBC)
Timeline
Dates from the published record
-
12 Nov 2025
Received by Westminster
-
4 Mar 2026
Validated
Checked as complete and ready for consideration.
-
31 Mar 2026
Decision issued: Application Permitted
-
30 Aug 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
1 later application on the register refers to this one:
-
25/08257/LBC Granted
1 Hanover Street London W1S 1YZ
Retention of perimeter balustrades, relocation of light box on Hanover Street, alterations to facade to display public artwork, and amendments to cladding system of core. Linked with 25/08273/NMA
Who's behind it
Company information only, from the register and Companies House
Agent on file
922 applications on PlanIndex · across 36 councils · 97% granted
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
Plans, drawings, consultee responses and the officer's report
28 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.
Trade members open them from here.
Open the documentsWhat this grant of permission means
Westminster granted permission on 31 March 2026, 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 500 metres
-
1 Hanover Street London W1S 1YZ
Retention of perimeter balustrades, relocation of light box on Hanover Street, alterations to facade to display public artwork, and amendments to cladding system of core. Linked with 25/08273/NMA
Granted Heritage and listed buildings 37 docs -
1 Hanover Street London W1S 1YZ
85% historically approved · decision due ~15 Jul
Display of non illuminated hoarding signage measuring 2.44m x 1.22m.
Awaiting decision Advertising 10 docs -
1 Hanover Street London W1S 1YZ
Detailed drawings and photos of samples of the facing materials including glazing pursuant to Condition 3 (part) of listed building consent dated 27th March 2024 (RN: 23/08787/LBC).
Granted Conditions Windows or glazing 13 docs -
1 Hanover Street London W1S 1YZ
Detailed drawings and photos of samples of the facing materials including glazing pursuant to Condition 4 (part) of planning permission dated 27th March 2024 (RN: 23/08783/FULL).
Granted Full applications Windows or glazing 4 docs -
245 Regent Street London W1B 2EN
Display of two externally illuminated projecting signs measuring 0.3m x 0.45m and one flag measuring 2.6m x 1.8m existing flagpole.
Granted Advertising 28 docs -
245 Regent Street London W1B 2EN
87% historically approved · decision due ~17 Feb
Alterations to shopfronts (Linked to 25/09297/LBC)
Awaiting decision Full applications 69 docs
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Amendments to planning permission dated 18th January 2024 (RN:22/04886/FULL) for Excavation of single-storey basement extension with lightwells to front and rear gardens; Erection of single-storey extension to rear and three-storey extension to side; Formation of door to rear at lower ground floor level; Landscaping works; and associated external alterations. Namely, internal alterations and minor adjustment to rooflight position.
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26/05670/NMA Awaiting decision
64 St James's Street London SW1A 1NF
Amendments to planning permission dated 2nd September 2021 (21/02158/FULL) for: Demolition of the existing mansard roof and removal of plant and escape stair; erection of new double mansard roof extension and rear extension for additional commercial floorspace (Use Class E); and installation of new escape stair, rear balconies, roof terrace and associated works namely, amendments to allow for the installation of a condenser unit within the rear lightwell.
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26/05674/NMA Awaiting decision
52 Eaton Place London SW1X 8AL
Amendments to planning permission dated 25 September 2025 (25/05108/FULL) for: Alterations to rear extension at first floor level including creation of rear roof terrace at second floor level; replacement of first and second floor level front windows with double glazed timber sash windows; replacement of front door; reinstatement of period windows and doors namely, to allow replacement of second floor rear full height sash window with set of french doors.