Planning application
3 Eccleston Street London SW1W 9LZ
Works: Roofing
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
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.
As published by the council, reference 26/02350/NMA
Application record
- Reference
- 26/02350/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: 2 approved, 1 refused.
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26/05173/FULL Decided
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 the balustrade and incorporation and alteration of 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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26/02351/NMA Awaiting decision
3 Eccleston Street London SW1W 9LZ
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.
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25/08264/ADFULL Granted
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 24 June 2025 (RN 24/09005/FULL)
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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
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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 91 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
925 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
17 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 81 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
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.
Awaiting decision Amendments Windows or glazing 19 docs -
Radstock House Eccleston Street London City Of Westminster SW1W 9LZ
88% 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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26/07459/NMA Awaiting decision
1 Hanover Square London W1S 1HA
Amendments to planning pemrission dated 10 October 2025 (RN: 25/01558/FULL) for the: Partial demolition, refurbishment and extension of the existing building to provide a sub-basement, basement, ground plus eight storey building; infilling and stepped rear extension; excavation of a new sub-basement level; installation of new plant equipment at basement and roof level; terraces at fourth, fifth, sixth, seventh and eighth floor levels; soft and hard landscaping; reprovision of car parking; new cycle parking facilities; and associated external works. Use of the building for retail and/or restaurant (Class E) on part ground floor and office (Class E) on all other floors. NAMELY, to allow alterations to the design of the ground floor frontages on Hanover Square and St George Street.
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26/07438/NMA Awaiting decision
29 - 31 Hill Street London W1J 5LS
Amendments to planning permission dated 1st July 2025 (RN 25/01006/FULL) for the external alterations at roof level including the creation of Level 04 roof terrace for use in association with existing office (Class E), replacement and installation of new plant and landscaping, replacement of windows, introduction of louvres, removal and replacement of rooflights, installation of new rooflight and other associated works. NAMELY, for alterations comprising of the removal of window sash boxes and weights, changes to the window mullion arrangement, the removal of two sash windows, the installation of secondary glazing, the removal of existing chamber hatch and installation of extract vent and integrated bench, the external replacement of rainwater goods and hoppers, the removal of bricks and installation of airbricks, minor demolition works, replacement of roof covering, removal of ductwork, roof plant rearrangement, the installation of a new external door to plant area, minor layout alterations and other associated works.
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26/07389/NMA Decided
Flat 1 5 Grittleton Road London W9 2DD
Amendments to planning permission dated 04 June 2025 (RN: 25/02022/FULL), NAMELY, amendment of Condition 4 to correct the property address from 9 Aldridge Road Villas to Flat 1 5 Grittleton Road.
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26/07377/NMA Awaiting decision
60 Ledbury Road London W11 2AJ
Amendments to planning permission dated 2nd October 2025 (RN 25/04018/FULL) for the Partial demolition, refurbishment, and erection of a mansard roof extension to form a new third floor with dormers to front, side and rear elevations; to form 6 flats (Class C3) on upper floors; external plant equipment and ductwork; lower ground floor excavation to increase floor to ceiling height; replacement windows; cycle parking and associated external alterations; use of the part ground floor and lower ground floor as retail and restaurant (Class E). Site includes 60-68 Ledbury Road) NAMELY, An amendment to the basement and ground floor drawing reference numbers; amendment to the description of development, in reference to restaurant and or retail use; and amendments to C
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26/07375/NMA Awaiting decision
77 Hereford Road London W2 5BB
Amendments to planning permission dated 4th August 2026 (RN 26/03970/FULL) for the Replacement of roof terrace access stair with glazed hatch, new timber decking and front and rear roof railings to roof terrace, with infilling side window of closet wing. NAMELY, Hinged hatch access substituted by sliding hatch.