Planning application
10 Spring Gardens London SW1A 2BN
Works: Windows or glazing
Decided. The decision notice on the council portal carries the outcome in full, including any conditions.
Proposal
Amendments to planning permission dated 25 May 2023 (RN: 22/07991/FULL) for: refurbishment of the existing building including relocation and provision of mechanical plant at eighth floor level and roof level, installation of photovoltaic panels and new lift overrun at roof level. Alterations to the Carlton House Terrace elevation to facilitate wheelchair access. Replacement of existing windows on the building and installation of acoustic louvres to the west facade at eighth floor level. Alterations to the building undercroft including a new entrance lobby and facade lighting and CCTV. Provision of a new cycle and waste store and loading bay. External alterations to the adjacent piazza area including the installation of bollards, raised external area and the demised area for external seating and external lighting to the stair and passage to Carlton House Terrace; namely to include a roof step-over ladder and to amend PV panel layout.
As published by the council, reference 26/03875/NMA
Application record
- Reference
- 26/03875/NMA
- Category
- Amendments
- Status
- Decided
- Received
- 12 Jun 2026
- Validated
- 12 Jun 2026
- Postcode
- SW1A 2BN
Site history
Applications at this address on the Westminster register
This site has had 5 applications since 2025: 2 approved, 0 refused.
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26/05886/NMA Awaiting decision
10 Spring Gardens London SW1A 2BN
Amendments to planning permission dated 10 July 2025 (RN: 25/00695/FULL) for the use of part-ground, first, sixth, seventh and eighth floor levels as an Embassy (sui generis). Associated external alterations to the ground floor facade on Carlton House Terrace, and part ground floor to Piazza (Spring Gardens) frontage. External alterations to the doors. Installation of roof plant and security screens to the eighth floor; Namely, the addition of external attached building signage on the west elevation and south elevation, addition of two flagpoles on the west elevation, additional of a parcel pass through, rather than a fixed panel to the door on the north elevation and omission of a smoke vent and replacement paving to match existing paving.
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26/00280/TCA Granted
10 Spring Gardens London SW1A 2BN
T1 1 x Platanus x hispanica: Crown lift by 2m, pruning low hanging branches secondary branches only, leaving a well-balanced crown. Reduce back off adjacent wall/building to give 2m clearance. Reduce Previously reduced, overextended, low lateral branches, growing over the paved area to the East by approximately 1.5-2m shaping into upper crown. Remove Massaria infected branches with a diameter of up to 100mm and remove deadwood. T2 1 x Platanus x hispanica: Crown lift by 2m, pruning low hanging branches secondary branches only, leaving a well-balanced crown. Reduce Previously reduced, overextended, low lateral branches, growing over the paved area to the East by approximately 1.5-2m shaping into upper crown. Remove Massaria infected branches with a diameter of up to 100mm and remove deadwood. T3 1 x Platanus x hispanica: Crown lift by 2m, pruning low hanging branches secondary branches only, leaving a well-balanced crown. Reduce back off adjacent wall/building to give 2m clearance. Reduce Over-extended branch adjacent to the National Insitute for Health Building by 1.5m to balance crown. Remove Massaria infected branches with a diameter of up to 100mm and remove deadwood.
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25/09212/FULL Awaiting decision
10 Spring Gardens London SW1A 2BN
New hard and soft landscaping of the piazza area in front of 10 Spring Gardens and partial replacement of the existing steps (towards The Mall) to provide a new ramped access.
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25/07676/ADV Granted
10 Spring Gardens London SW1A 2BN
Display of one halo illuminated fascia sign measuring 0.21m x 1.8m on the 10 Spring Gardens undercroft elevation and one back lit illuminated bike signage panel measuring 0.37m x 0.61m at the cycle store entrance elevation.
Timeline
Dates from the published record
-
12 Jun 2026
Received by Westminster
-
21 Jul 2026
Added to PlanIndex
-
9 Aug 2026
Status changed to Decided
Previously Pending.
After the decision
Westminster has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. 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
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10 Spring Gardens London SW1A 2BN
93% historically approved · decision due ~29 Oct
Amendments to planning permission dated 10 July 2025 (RN: 25/00695/FULL) for the use of part-ground, first, sixth, seventh and eighth floor levels as an Embassy (sui generis). Associated external alterations to the ground floor facade on Carlton House Terrace, and part ground floor to Piazza (Spring Gardens) frontage. External alterations to the doors. Installation of roof plant and security screens to the eighth floor; Namely, the addition of external attached building signage on the west elevation and south elevation, addition of two flagpoles on the west elevation, additional of a parcel pass through, rather than a fixed panel to the door on the north elevation and omission of a smoke vent and replacement paving to match existing paving.
Awaiting decision Amendments -
10 Spring Gardens London SW1A 2BN
Display of one halo illuminated fascia sign measuring 0.21m x 1.8m on the 10 Spring Gardens undercroft elevation and one back lit illuminated bike signage panel measuring 0.37m x 0.61m at the cycle store entrance elevation.
Granted Advertising 11 docs -
10 Spring Gardens London SW1A 2BN
T1 1 x Platanus x hispanica: Crown lift by 2m, pruning low hanging branches secondary branches only, leaving a well-balanced crown. Reduce back off adjacent wall/building to give 2m clearance. Reduce Previously reduced, overextended, low lateral branches, growing over the paved area to the East by approximately 1.5-2m shaping into upper crown. Remove Massaria infected branches with a diameter of up to 100mm and remove deadwood. T2 1 x Platanus x hispanica: Crown lift by 2m, pruning low hanging branches secondary branches only, leaving a well-balanced crown. Reduce Previously reduced, overextended, low lateral branches, growing over the paved area to the East by approximately 1.5-2m shaping into upper crown. Remove Massaria infected branches with a diameter of up to 100mm and remove deadwood. T3 1 x Platanus x hispanica: Crown lift by 2m, pruning low hanging branches secondary branches only, leaving a well-balanced crown. Reduce back off adjacent wall/building to give 2m clearance. Reduce Over-extended branch adjacent to the National Insitute for Health Building by 1.5m to balance crown. Remove Massaria infected branches with a diameter of up to 100mm and remove deadwood.
Granted Trees 8 docs -
10 Spring Gardens London SW1A 2BN
87% historically approved · decision due ~13 Feb
New hard and soft landscaping of the piazza area in front of 10 Spring Gardens and partial replacement of the existing steps (towards The Mall) to provide a new ramped access.
Awaiting decision Full applications 54 docs -
2 Spring Gardens London SW1A 2TS
Retention of two flags (1 each on Spring Gardens and Cockspur Street elevations).
Refused Advertising 4 docs -
2 Spring Gardens London SW1A 2TS
Display of three exterior banners inside the fascia portion of the facade to Cockspur Street and Spring Gardens elevations for a temporary period.
Withdrawn Advertising 6 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)