Planning application
43 - 45 Portman Square London W1H 6LY
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Details of accurate and verified estimates of the 'Be Seen' energy performance indicators for the Development as outlined in chapter 3 (Planning Stage) of the Be Seen Guidance pursuant to Condition 33 (A) of planning permission dated 7th April 2025 (RN:24/04987/FULL)
As published by the council, reference 25/03065/ADFULL
Application record
- Reference
- 25/03065/ADFULL
- Type
- Approval of Details (Full PP)
- Status
- Pending
- Received
- 2 May 2025
- Validated
- 2 May 2025
- Ward
- West End
- Postcode
- W1H 6LY
Site history
Applications at this address on the Westminster register
This site has had 14 applications since 2004: 8 approved, 0 refused.
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26/04951/NMA Decided
43 - 45 Portman Square London W1H 6LY
Amendments to planning permission dated 22 April 2026 (Ref: 25/06153/FULL) for, 'Partial demolition of the existing roof and removal of plant equipment; construction of a roof extension providing new office (Class E) floorspace with associated external amenity spaces and plant equipment; refurbishment of the existing building, including infilling of the existing atrium; alterations to the existing façade; provision of cycle parking spaces and end of journey facilities, and all associated and ancillary works'; NAMELY, to amend the wording of Condition 27 to allow basement demolition work to proceed in advance of sustaianble drainage construction drawings being approved.
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26/04721/ADFULL Awaiting decision
43 - 45 Portman Square London W1H 6LY
Details of accurate and verified estimates of the 'Be Seen' energy performance indicators for the Development as outlined in chapter 3 (Planning Stage) of the Be Seen Guidance pursuant to condition 33 (A) of planning permission dated 7th April 2025 (RN:24/04987/FULL)
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26/04154/NMA Decided
43 - 45 Portman Square London W1H 6LY
Amendments to planning permission dated 22 April 2026 (RN: 25/06153/FULL) for the variation of Condition 1 of planning permission dated 7th April 2025 (RN: 24/04987/FULL) for, 'Partial demolition of the existing roof and removal of plant equipment; construction of a roof extension providing new office (Class E) floorspace with associated external amenity spaces and plant equipment; refurbishment of the existing building, including infilling of the existing atrium; alterations to the existing façade; provision of cycle parking spaces and end of journey facilities, and all associated and ancillary works'; Namely,the retention of existing cores, the infilling of atria, the provision of additional rooflights to the western 3rd floor terrace, layout changes at ground and lower ground levels and changes to some windows on the eastern façade and retention of existing first floor windows, resulting in single storey full height glazing to the retail frontages along Orchard Street (Application under Section 73 of the Act); NAMELY rooftop plant screening; enlargement of lift overrun; adjustments to PV layout; reconfiguration of Level 10 north façade with doors and panels; consolidation and removal of blue roofs at Levels 10 and 8; enlargements of SW stair roof with addition of vent for pressurisation; updating of south façade windows with discreet vents; alerations to NW mansard for maintenance access; addition of additional louvres for building services.
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26/02687/NMA Awaiting decision
43 - 45 Portman Square London W1H 6LY
Amendments to planning permission dated 22nd April 2026 (RN:25/06153/FULL) for: Variation of Condition 1 of planning permission dated 7th April 2025 (RN: 24/04987/FULL) for: Partial demolition of the existing roof and removal of plant equipment; construction of a roof extension providing new office (Class E) floorspace with associated external amenity spaces and plant equipment; refurbishment of the existing building, including infilling of the existing atrium; alterations to the existing façade; provision of cycle parking spaces and end of journey facilities, and all associated and ancillary works namely, amendments to mansard roof and rear façades; alterations to skylights and access doors to terraces; alterations to Portman Mews and Orchard Street elevations and to main entrance; alterations to louvres and to internal layout.
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26/00708/ADFULL Granted
43 - 45 Portman Square London W1H 6LY
Details of signed Appendix A of the council's Code of Construction Practice pursuant to Condition 19 of planning permission dated 07 April 2025 (RN: 24/04987/FULL)
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26/00710/ADFULL Granted
43 - 45 Portman Square London W1H 6LY
Detailed method statement for interim and temporary drainage measures during the demolition and construction phase pursuant to Condition 26 of planning permission dated 07 April 2025 (RN: 24/04987/FULL)
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26/00709/ADFULL Granted
43 - 45 Portman Square London W1H 6LY
Details of Construction Logistics Plan to clarify that TfL's assets and services are not adversely affected during the demolition and construction of the application pursuant to Condition 32 of planning permission dated 07 April 2025 (RN: 24/04987/FULL)
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25/06153/FULL Awaiting decision
43 - 45 Portman Square London W1H 6LY
Variation of Condition 1 of planning permission dated 7th April 2025 (RN: 24/04987/FULL) for, 'Partial demolition of the existing roof and removal of plant equipment; construction of a roof extension providing new office (Class E) floorspace with associated external amenity spaces and plant equipment; refurbishment of the existing building, including infilling of the existing atrium; alterations to the existing façade; provision of cycle parking spaces and end of journey facilities, and all associated and ancillary works'; Namely,the retention of existing cores, the infilling of atria, the provision of additional rooflights to the western 3rd floor terrace, layout changes at ground and lower ground levels and changes to some windows on the eastern façade and retention of existing first floor windows, resulting in single storey full height glazing to the retail frontages along Orchard Street (Application under Section 73 of the Act).
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06/00987/AD7 Granted
43 - 45 Portman Square London W1H 6LY
Display of non-illuminated estate agent board measuring 600mm x 450mm to be attached to the railings in front of the building at a height of 1.5m from ground floor level, for a temporary period of 6 months.
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05/10346/AD7 Granted
43 - 45 Portman Square London W1H 6LY
Display for a temporary period of six months of a non-illuminated 'to let' board attached to the railings in front of the building at street level and measuring 0.6m x 0.45m.
Timeline
Dates from the published record
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2 May 2025
Received by Westminster
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30 Aug 2026
Added to PlanIndex
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Decision
Awaiting decision
Decision expected by 27 June 2025, 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 61 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Agent on file
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See who's behind itDocuments
Plans, drawings, consultee responses and the officer's report
7 documents on file for this application
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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 full applications in a median of 85 days. More in our guide to how long planning decisions take.
About full applications
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Nearby applications
Within 500 metres
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43 - 45 Portman Square London W1H 6LY
Display of non-illuminated estate agent board measuring 600mm x 450mm to be attached to the railings in front of the building at a height of 1.5m from ground floor level, for a temporary period of 6 months.
Granted Advertising 3 docs -
43 - 45 Portman Square London W1H 6LY
Display for a temporary period of six months of a non-illuminated 'to let' board attached to the railings in front of the building at street level and measuring 0.6 x 0.45m.
Granted Advertising 3 docs -
43 - 45 Portman Square London W1H 6LY
Display for a temporary period of six months of a non-illuminated 'to let' board attached to the railings in front of the building at street level and measuring 0.6m x 0.45m.
Granted Advertising 2 docs -
Hesketh House 43 - 45 Portman Square London W1H 6LY
Alterations to entrance on Portman Square including removal of gates and installation of full height glazed lobby.
Withdrawn Full applications Windows or glazing 10 docs -
43 - 45 Portman Square London W1H 6LY
92% historically approved · decision due ~17 Sep
Amendments to planning permission dated 22 April 2026 (Ref: 25/06153/FULL) for, 'Partial demolition of the existing roof and removal of plant equipment; construction of a roof extension providing new office (Class E) floorspace with associated external amenity spaces and plant equipment; refurbishment of the existing building, including infilling of the existing atrium; alterations to the existing façade; provision of cycle parking spaces and end of journey facilities, and all associated and ancillary works'; NAMELY, to amend the wording of Condition 27 to allow basement demolition work to proceed in advance of sustaianble drainage construction drawings being approved.
Decided Amendments Extension Demolition -
43 - 45 Portman Square London W1H 6LY
89% historically approved · decision due ~9 Sep
Details of accurate and verified estimates of the 'Be Seen' energy performance indicators for the Development as outlined in chapter 3 (Planning Stage) of the Be Seen Guidance pursuant to condition 33 (A) of planning permission dated 7th April 2025 (RN:24/04987/FULL)
Awaiting decision
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