Planning application
Venture House 27 - 29 Glasshouse Street London W1B 5DF
Works: Extension Loft or dormer Windows or glazing
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Amendment of planning permission dated 30th July 2024 (RN 24/02160/FULL) for the Comprehensive refurbishment of the buildings, in connection with use of all of the upper floors as office accommodation (Use Class E), erection of a setback rooftop extension, and a double mansard extension with new dormer windows to the Glasshouse Street elevation including new amenity terraces; alterations to Glasshouse Street chimneys and new plant equipment and screening; external alterations to Glasshouse Street facades including new retail shopfront, new office reception entrance and glazing, new service entrance and associated works; internal alterations including enlargement of the office reception at ground floor, infilling the atrium to provide additional office accommodation (Use Class E) at first floor, and the relocation of the goods corridor on the ground floor; and other associated works. NAMELY, integration of Glasshouse Street dry riser inlet into the glazing system; Minor amendment to location of office plate notional stairs and ramps; Omission of external wall lining; Minor amendment to Atrium Rooflight glass panel sizes; and omission of Level 7 rooflight.
As published by the council, reference 25/08970/NMA
Application record
- Reference
- 25/08970/NMA
- Type
- Non-material amendments
- Status
- Decided
- Decision
- Granted As published: Application Permitted
- Received
- 10 Dec 2025
- Validated
- 10 Dec 2025
- Decided
- 5 Mar 2026
- Ward
- West End
- Decision by
- Delegated Decision
- Postcode
- W1B 5DF
Site history
Applications at this address on the Westminster register
This site has had 25 applications since 2010: 13 approved, 1 refused.
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26/07289/ADLBC Awaiting decision
Venture House 27 - 29 Glasshouse Street London W1B 5DF
Details of samples (photographs and specification) of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located and detailed drawings of the new dormers pursuant to condition 3 and 4 (D) of listed building dated 30th July 2024 (RN:24/02163/LBC)
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26/06773/NMA Awaiting decision
Venture House 27 - 29 Glasshouse Street London W1B 5DF
Amendments to planning permission dated 30 July 2024 (RN: 24/02160/FULL) for, "Comprehensive refurbishment of the buildings, in connection with use of all of the upper floors as office accommodation (Use Class E), erection of a setback rooftop extension, and a double mansard extension with new dormer windows to the Glasshouse Street elevation including new amenity terraces; alterations to Glasshouse Street chimneys and new plant equipment and screening; external alterations to Glasshouse Street facades including new retail shopfront, new office reception entrance and glazing, new service entrance and associated works; internal alterations including enlargement of the office reception at ground floor, infilling the atrium to provide additional office accommodation (Use Class E) at first floor, and the relocation of the goods corridor on the ground floor; and other associated works"; NAMELY: (i) Infilling of an existing first-floor window within the approved internal courtyard/atrium, including removal of the existing window frame and infilling the opening with matching brickwork; and (ii) Amendment to the wording of Condition 6 to substitute a revised drawings number showing the location of the waste and recycling store.
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26/06559/LBC Decided
Venture House 27 - 29 Glasshouse Street London W1B 5DF
Infilling of an existing window at first floor level and associated works, in connection with the Phase 2 proposals approved under (RN 24/02163/LBC) and (RN 25/08966/LBC).
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26/03868/ADFULL Awaiting decision
Venture House 27 - 29 Glasshouse Street London W1B 5DF
Details of facing materials pursuant to condition 16 of planning permission dated 30 July 2024 (RN: 24/02160/FULL).
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26/03784/ADLBC Decided
Venture House 27 - 29 Glasshouse Street London W1B 5DF
Samples of facing materials pursuant to condition 3 of Llsted building consent dated 30 July 2024 (RN :24/02163/LBC)
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26/02309/ADLBC Awaiting decision
Venture House 27 - 29 Glasshouse Street London W1B 5DF
Details of method statement relating to repair of retained cornices including details of any reinstatement works pursuant to condition 4 of listed building consent dated 06 June 2025 (RN: 25/00973/LBC)
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26/02312/ADFULL Awaiting decision
Venture House 27 - 29 Glasshouse Street London W1B 5DF
Details of biodiversity management plan in relation to green roof areas pursuant to condition 9 of planning permission dated 30 July 2024 (RN: 24/02160/FULL).
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26/02283/ADFULL Awaiting decision
Venture House 27 - 29 Glasshouse Street London W1B 5DF
Details of samples (photographs and specification) of the facing materials, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to condition 16 of planning permission dated 30th July 2024 (RN: 24/02160/FULL)
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26/02201/ADLBC Awaiting decision
Venture House 27 - 29 Glasshouse Street London W1B 5DF
Details of samples (photographs and specification) 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 3 of listed building dated 30th July 2024 (RN:24/02163/LBC)
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26/01991/ADFULL Awaiting decision
Venture House 27 - 29 Glasshouse Street London W1B 5DF
Detailed Servicing Management Plan pursuant to condition 19 of planning permission dated 30th July 2024 (RN:24/02160).
Timeline
Dates from the published record
-
10 Dec 2025
Received by Westminster
-
5 Mar 2026
Decision issued: Application Permitted
-
20 Jul 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
1 later application on the register refers to this one:
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26/06773/NMA Awaiting decision
Venture House 27 - 29 Glasshouse Street London W1B 5DF
Amendments to planning permission dated 30 July 2024 (RN: 24/02160/FULL) for, "Comprehensive refurbishment of the buildings, in connection with use of all of the upper floors as office accommodation (Use Class E), erection of a setback rooftop extension, and a double mansard extension with new dormer windows to the Glasshouse Street elevation including new amenity terraces; alterations to Glasshouse Street chimneys and new plant equipment and screening; external alterations to Glasshouse Street facades including new retail shopfront, new office reception entrance and glazing, new service entrance and associated works; internal alterations including enlargement of the office reception at ground floor, infilling the atrium to provide additional office accommodation (Use Class E) at first floor, and the relocation of the goods corridor on the ground floor; and other associated works"; NAMELY: (i) Infilling of an existing first-floor window within the approved internal courtyard/atrium, including removal of the existing window frame and infilling the opening with matching brickwork; and (ii) Amendment to the wording of Condition 6 to substitute a revised drawings number showing the location of the waste and recycling store.
Who's behind it
Company information only, from the register and Companies House
Newmark LLP Agent
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Plans, drawings, consultee responses and the officer's report
37 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.
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Open the documentsWhat this grant of permission means
Westminster granted permission on 5 March 2026, 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 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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Venture House 27 - 29 Glasshouse Street London W1B 5DF
Display of two externally illuminated inset advertisement boards, each measuring 5.5m x 9.3m, to be integrated within the scaffold building wrap approved under application ref. 25/06861/ADV.
Refused Advertising 15 docs -
Venture House 27 - 29 Glasshouse Street London W1B 5DF
Amendments to planning permission dated 29th July 2025 (RN:25/03848/FULL) for replacement of the existing steel windows with a new bespoke windows including associated internal and external works, namely to incorporate six additional windows at fifth floor level on the Glasshouse Street façade
Granted Amendments Windows or glazing 16 docs -
Venture House 27 - 29 Glasshouse Street London W1B 5DF
Replacement of six steel-framed windows at fifth floor level on the Glasshouse Street facade with a new bespoke heritage style window system and associated internal and external works.
Granted Heritage and listed buildings Windows or glazing 19 docs -
Venture House 27 - 29 Glasshouse Street London W1B 5DF
Amendments to planning permission dated 4th April 2024 (RN 24/00846/FULL) for the Replacement of the existing shopfronts on the Regent Street frontage, alongside the internal refurbishment and subdivision of the basement and ground floor retail units (Use Class E), and associated works NAMELY, reconfiguration of the basement and ground floor layouts, and associated additional demolition works; internal relocation of UKPN hatch; and introduction of Dry Riser Inlet to the Regent Street façade.
Granted Amendments Demolition 23 docs -
Venture House 27 - 29 Glasshouse Street London W1B 5DF
Display of printed scaffold building wrap along Regent Street façade, measuring 41m (width) x 11.04m (height), for a temporary period of eighteen months.
Granted Advertising 5 docs -
Venture House 27 - 29 Glasshouse Street London W1B 5DF
Alteration of the basement layout; installation of CCTV cameras on the external elevations; reconfiguration of the Glasshouse Street reception areas; alterations to the dry riser arrangements; alterations to the Core 3 layout; changes to the proposed atrium rooflight, the terrace landscaping, and the omission of a small rooflight on level 7; and changes to the extent of demolition.
Granted Heritage and listed buildings Loft or dormer Demolition 5 docs
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Amendments to planning permission dated 28 October 2025 (25/06226/FULL) for: Installation of a replacement entrance door and the formation of an additional new entrance at ground floor level; associated alterations to the ground floor facade and the installation of plant and related mechanical equipment at roof level namely, paint colour and lighting.
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26/07281/NMA Awaiting decision
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Amendments to planning permission dated 6 May 2026 (25/07520/FULL) for: Replacement of windows to the front, side and rear elevations with aluminium framed windows namely, to include the replacement of five doors.
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26/07243/NMA Awaiting decision
144 Praed Street London W2 1HU
Amendments to planning permission dated 09 August 2024 (RN: 22/08247/FULL) for the replacement of the mansard roof with a sheer brickwork extension, new mansard roof extension and rooftop plant enclosure to provide additional hotel accommodation (Class C1); alterations to facade fenestration and shopfronts; installation of a green wall to the side (north-east); and associated works. NAMELY, to amend Condition 13 to require details of the modular green wall to be submitted prior to commencement of the relevant part of the development.