Planning application
3 Eccleston Street London SW1W 9LZ
Works: Windows or glazing
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Amendment to planning permission dated 21st May 2025 (RN 24/08110/FULL) for the Refurbishment of building, replacement of all windows at first, second and third floor level, replacement of two doors at ground floor level, removal of two existing windows on eastern elevation, new artwork on eastern elevation, installation of a plant enclosure and replacement of existing roof-top plant equipment and associated works. NAMELY, Amendments to materiality of secondary stair core doors which front eastern elevation and installation of signage on the northern elevation.
As published by the council, reference 26/02351/NMA
Application record
- Reference
- 26/02351/NMA
- Type
- Non-material amendments
- Status
- Pending
- Received
- 10 Apr 2026
- Validated
- 10 Apr 2026
- Ward
- Knightsbridge & Belgravia
- Postcode
- SW1W 9LZ
Site history
Applications at this address on the Westminster register
This site has had 7 applications since 2025: 1 approved, 1 refused.
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26/05173/FULL Awaiting decision
3 Eccleston Street London SW1W 9LZ
Variation of condition 1 of planning permission dated 24 June 2025 (RN: 24/09005/FULL) for the: Removal of existing lift overrun and redundant roof equipment, installation of a new roof enclosure to house lift and staircase access to roof, installation of a pergola in association with the creation of a new roof terrace at fourth floor level. NAMELY, amendments to allow alteration to balustrade; and incorporation/ alteration of the ductwork.
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26/05172/NMA Awaiting decision
3 Eccleston Street London SW1W 9LZ
Amendments to planning permission dated 21 May 2025 (RN: 24/08110/FULL) for the: Refurbishment of building, replacement of all windows at first, second and third floor level, replacement of two doors at ground floor level, removal of two existing windows on eastern elevation, new artwork on eastern elevation, installation of a plant enclosure and replacement of existing roof-top plant equipment and associated works. Namely, to increase the height of the approved ductwork and introduce a short section of stacked ductwork.
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26/02350/NMA Awaiting decision
3 Eccleston Street London SW1W 9LZ
Amendments to planning permission dated 25 May 2025 (RN: 24/09005/FULL) for removal of existing lift overrun and redundant roof equipment, installation of a new roof enclosure to house lift and staircase access to roof, installation of a pergola in association with the creation of a new roof terrace at fourth floor level; NAMELY amendments to balustrade and ductwork.
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25/08264/ADFULL Awaiting decision
3 Eccleston Street London SW1W 9LZ
Details, including photographs of samples and/or manufacturer specifications, 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 4 of planning permission dated 24th June 2025 (RN:24/09005).
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25/06578/ADFULL Granted
3 Eccleston Street London SW1W 9LZ
Details, including photographs of samples and manufacturer specifications of the facing materials, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to Condition 6 of planning permission dated 21st May 2025 (RN: 24/08110/FULL).
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25/06577/ADFULL Refused
3 Eccleston Street London SW1W 9LZ
Details, including photographs of samples and manufacturer specifications of the facing materials, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to Condition 4 of planning permission dated 24th June 2025 (RN: 24/09005/FULL)
Timeline
Dates from the published record
-
10 Apr 2026
Received by Westminster
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21 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
Decision expected by 5 June 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Westminster took a median of 66 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Newmark LLP Agent
921 applications on PlanIndex · across 40 councils · 97% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
19 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.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat happens while it is decided
This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided amendment applications in a median of 54 days. More in our guide to how long planning decisions take.
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
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Radstock House 3 Eccleston Street London SW1W 9LZ
Amendment to planning permission dated 21 May 2025 (RN: 24/08110/FULL) for 'Refurbishment of building, replacement of all windows at first, second and third floor level, replacement of two doors at ground floor level, removal of two existing windows on eastern elevation, new artwork on eastern elevation, installation of a plant enclosure and replacement of existing roof-top plant equipment and associated works'. NAMELY, updating the approved drawings to ensure full alignment between drawings.
Granted Amendments Windows or glazing 13 docs -
Radstock House 3 Eccleston Street London SW1W 9LZ
Amendments to planning permission dated 24 June 2025 (RN: 24/09005/FULL) for 'Removal of existing lift overrun and redundant roof equipment, installation of a new roof enclosure to house lift and staircase access to roof, installation of a pergola in association with the creation of a new roof terrace at fourth floor level'. Namely, changes to treatment of secondary stair core.
Granted Amendments Roofing 13 docs -
3 Eccleston Street London SW1W 9LZ
Details, including photographs of samples and manufacturer specifications of the facing materials, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to Condition 6 of planning permission dated 21st May 2025 (RN: 24/08110/FULL).
Granted Full applications Windows or glazing 7 docs -
3 Eccleston Street London SW1W 9LZ
Details, including photographs of samples and manufacturer specifications of the facing materials, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to Condition 4 of planning permission dated 24th June 2025 (RN: 24/09005/FULL)
Refused Full applications Windows or glazing 9 docs -
3 Eccleston Street London SW1W 9LZ
93% historically approved · decision due ~5 Jun
Amendments to planning permission dated 25 May 2025 (RN: 24/09005/FULL) for removal of existing lift overrun and redundant roof equipment, installation of a new roof enclosure to house lift and staircase access to roof, installation of a pergola in association with the creation of a new roof terrace at fourth floor level; NAMELY amendments to balustrade and ductwork.
Awaiting decision Amendments Roofing 17 docs -
Radstock House Eccleston Street London City Of Westminster SW1W 9LZ
87% historically approved · decision due ~4 May
Details of operational managment plan to show how terrace will be used pursuant to condition 10 of planning permission dated 24th June 2025 (RN: 24/09005/FULL).
Awaiting decision Full applications 3 docs
Other amendment applications
In Westminster
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26/06232/NMA Awaiting decision
37 Trevor Place London SW7 1LE
Amendments to planning permission dated 17th July 2026 (RN 26/03030/FULL) for the Alterations including enlargement of louvres and installation of new plant in basement; landscaping of roof terrace; second floor windows replaced with door sets; partial demolition at ground and first floor levels to create new lightwell and landscaped courtyard. NAMELY, addition of a free-standing sauna to the second-floor roof terrace.
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26/06256/NMA Awaiting decision
Queens Court Queensway London W2 4QN
Amendments to planning permission dated 21st May 2026 (RN:25/05013/FULL) for Variation of conditions 1, 3, 8, 9 and 17 of planning permission dated 11th May 2022 (RN 18/09765/FULL) for the Change of use of rear part of Queensway Market to Retail, Financial and Professional services, Office and Restaurant (within Class E) use and 5 residential units facing Princes Court, reconfiguration of retail units along Queensway including introduction of Retail uses at Nos.23 and 33 (current entrances to Queensway Market) and use of Nos.25 and 41-43 Queensway as Restaurant uses, installation of new shopfronts to Nos.23 to 43 Queensway 23-43, erection of infill extension to rear at ground floor level, erection of two new pavilion structures for Retail use and associated new hard and soft landscaping on land between Queens Court and Princes Court, installation of green roofs, rooflights and mechanical plant within enclosures to first floor level roofs between projecting rear wings of Queens Court installation of kitchen extract ducts to rear elevations, and associated cycle parking, waste storage, plant and other ancillary alterations ('Application 2'). Namely, to vary the hours of operation for the refrigeration plant controlled by condition 6.
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26/06251/NMA Awaiting decision
19 Cumberland Street London SW1V 4LS
Amendments to planning permission dated 20th March 2026 (RN:25/08960/FULL) for Lower ground floor rear infill extension with terrace above, replacement of rear first floor conservatory, new roof level rear single dormer with access to third floor roof terrace, alterations to windows and external refurbishment, namely the change of conservatory gable roof to a flat GRP roof.
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26/06201/NMA Awaiting decision
Almack House 28 King Street St James's London SW1Y 6QW
Amendments to planning permission dated 16th April 2026 (RN:26/01487/FULL) for Installation of a mechanical plant at lower ground floor and installation of two grilles to two lower ground floor windows, namely change to approved grille.
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26/06212/NMA Awaiting decision
10 - 11 Lancaster Gate London W2 3LH
Amendment to Condition 12 (Whole Life Carbon) of planning permission dated 19th April 2024 (RN 23/04044/FULL) for Change of use from hotel to residential use (Class C3) with associated internal alterations to create 11 new units and external alterations comprising reconfiguration and recladding of the rear extension and restoration of the existing building. Namely to include additional requirement to evidence and justify where benchmarks cannot be achieved, consider mitigation measures and if none, evidence that all mitigation measures have been exhausted. (Linked with RN 26/06213/ADFULL)