Planning application
43 - 45 Portman Square London W1H 6LY
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
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.
As published by the council, reference 04/09146/AD7
Application record
- Reference
- 04/09146/AD7
- Type
- Advert Application-Regulat. 7 Area (AD7)
- Status
- Decided
- Decision
- Application Permitted
- Received
- 18 Nov 2004
- Validated
- 18 Nov 2004
- Decided
- 16 Dec 2004
- Ward
- Marylebone High Street
- Decision by
- Delegated Decision
- 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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25/03065/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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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.
Timeline
Dates from the published record
-
18 Nov 2004
Received by Westminster
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16 Dec 2004
Decision issued: Application Permitted
-
30 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
3 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 16 December 2004, 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 advertisement consent applications
Advertisement consent is judged on two things only: amenity and public safety, not competition or other planning considerations. More in our guide to planning application types.
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
87% historically approved · decision due ~27 Jun
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 Full applications 7 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
Other advertisement consent applications
In Westminster
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26/05953/ADV Awaiting decision
Public House 40 Porchester Road London W2 6ES
Retention of one non-illuminated printed advertisement measuring 2.74m x 2.06m on the ground floor glazing.
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26/05958/ADV Awaiting decision
Basement And Ground Floor 50 New Bond Street London W1S 1BJ
Display of internally illuminated fascia sign measuring 0.50m x 2.00; non illuminated hanging sign measuring 0.50m x 0.50m; and temporary vinyl on the glazing during construction.
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26/05912/ADV Awaiting decision
Noel Coward Theatre 85 - 89 St Martin's Lane London WC2N 4AU
Display of internally illuminated fascia sign measuring 0.41m x 5.74m. (Linked with 26/05916/LBC).
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26/05898/ADV Awaiting decision
66 - 68 Brewer Street London W1F 9TP
Display of internally illuminated wall mounted projection sign measuring 0.5m x 0.225m, including display of non-illuminated, printed logo onto canopy fabric.
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26/05873/ADV Awaiting decision
Site At Horse Shoe Yard, White Lion Yard And Lancashire Court London W1S 1EY
Display of two internally illuminated fascia signs measuring 0.2m x 0.687m, 0.34m x 0.34m, one internally illuminated projecting sign measuring 0.5m x 0.5m and non illuminated window signs measuring 0.1m x 0.35m on the Brook Street elevation. Linked with 26/05865/LBC