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Planning application

Venture House 27 - 29 Glasshouse Street London W1B 5DF

Awaiting decision Westminster 26/06773/NMA Amendments

Works: Extension Loft or dormer Windows or glazing

Relates to 25/08970/NMA

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 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.

As published by the council, reference 26/06773/NMA

Application record

Reference
26/06773/NMA
Category
Amendments
Status
Pending
Received
5 Oct 2026
Validated
5 Oct 2026
Ward
West End
Postcode
W1B 5DF

Site history

Applications at this address on the Westminster register

This site has had 24 applications since 2010: 13 approved, 1 refused.

  • 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).

    Submitted 24 Sep 2026 Heritage and listed buildings
  • 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).

    Submitted 12 Jun 2026 Full applications
  • 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)

    Submitted 9 Jun 2026
  • 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)

    Submitted 8 Apr 2026 Conditions
  • 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).

    Submitted 8 Apr 2026 Full applications
  • 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)

    Submitted 7 Apr 2026 Full applications
  • 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)

    Submitted 1 Apr 2026 Conditions
  • 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).

    Submitted 26 Mar 2026 Full applications
  • 26/01340/ADLBC Awaiting decision

    Venture House 27 - 29 Glasshouse Street London W1B 5DF

    Details of shopfronts and external doors pursuant to listed building consent dated 24 February 2026 (RN: 25/07749/LBC)

    Submitted 3 Mar 2026 Conditions
  • 25/08966/LBC Granted

    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.

    Decided 9 Apr 2026 Heritage and listed buildings

Timeline

Dates from the published record

  1. 5 Oct 2026

    Received by Westminster

  2. 7 Oct 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 30 November 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 86 days over the applications it decided in the last year.

Cases linked to this one on the register

  • 25/08970/NMA Granted

    Venture House 27 - 29 Glasshouse Street London W1B 5DF

    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.

    Decided 5 Mar 2026 Amendments

What 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

  • Venture House 27 - 29 Glasshouse Street London W1B 5DF

    26/06559/LBC Submitted 24 Sep 2026 50 yards away

    90% historically approved · decision due ~19 Nov

    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).

    Decided Heritage and listed buildings Windows or glazing
  • Venture House 27 - 29 Glasshouse Street London W1B 5DF

    26/03784/ADLBC Submitted 9 Jun 2026 50 yards away

    89% historically approved · decision due ~4 Aug

    Samples of facing materials pursuant to condition 3 of Llsted building consent dated 30 July 2024 (RN :24/02163/LBC)

    Decided
  • Sites At 74-90 Regent Street 1-19 Quadrant Arcade 19 And 27 - 29 Glasshouse Street London W1B 5DF

    08/03794/ADLBC Submitted 28 Apr 2008 50 yards away

    Approval of details to discharge of Condition 5 of the listed building consent dated 10.4.08 (RN: 07/05156/LBC) for various works, namely confirmation of an appropriate Section 106 agreement that includes provision for the historic environment.

    Granted Conditions 2 docs
  • Venture House 27 - 29 Glasshouse Street London W1B 5DF

    26/02201/ADLBC Submitted 1 Apr 2026 50 yards away

    89% historically approved · decision due ~27 May

    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)

    Awaiting decision Conditions Windows or glazing 6 docs
  • Venture House 27 - 29 Glasshouse Street London W1B 5DF

    25/08657/ADLBC Submitted 26 Nov 2025 50 yards away

    Detailed drawings of revised finish to ironmongery to match colour of window and revised handle design to reflect historic designs pursuant to condition 4 of listed building consent dated 29th July 2025 (RN:2503849/LBC)

    Granted Conditions Windows or glazing 6 docs
  • Venture House 27 - 29 Glasshouse Street London W1B 5DF

    26/01340/ADLBC Submitted 3 Mar 2026 50 yards away

    89% historically approved · decision due ~28 Apr

    Details of shopfronts and external doors pursuant to listed building consent dated 24 February 2026 (RN: 25/07749/LBC)

    Awaiting decision Conditions 8 docs

In Westminster

  • 26/07181/NMA Awaiting decision

    Newlands House 37 - 40 Berners Street London W1T 3NA

    Amendments to planning permission dated 9th October 2025 (RN:25/04048/FULL) forInfilling of the ground floor undercroft along Mortimer Street (Class E), replacement of ground floor frontage to the whole building and refurbishment of the upper floor facades. Namely, alterations to the approved green roof area at the site.

    Received 21 Oct, published by the council 22 Oct 2026 Amendments
  • 26/07132/NMA Awaiting decision

    157 - 159 Victoria Street London SW1E 5NA

    Amendments to planning permission dated 27 August 2026 (RN: 26/04666/FULL) for the: Installation of combined defibrillator and bleed kit cabinets to external wall of Nationwide Building Society branch. NAMELY, to allow alteration to design of combined defibrillator and bleed kit cabinet.

    Received 19 Oct, published by the council 20 Oct 2026 Amendments
  • 26/07086/NMA Awaiting decision

    Windsor House 50 Victoria Street London SW1H 0TL

    Amendments to planning permission dated 18th September 2026 (RN 26/01445/FULL) for the Refurbishment of Windsor House and Christchurch House (excluding residential part), including re-cladding and amendment of facades, replacement of windows, new end-of-trip facilities, installation of roof-level plant and screening, and associated works, to provide office, retail, restaurant and indoor recreation accommodation (Class E) with amenity spaces, including a new roof level pavilion to Christchurch House and link bridge between Windsor House and Christchurch House. NAMELY, amendments to the wording of Conditions 1, 11, 12, 13,14, 15 and 26.

    Received 16 Oct, published by the council 20 Oct 2026 Amendments
  • 26/07071/NMA Awaiting decision

    London School Of Economics & Political Science Houghton Street London WC2A 2AE

    Amendments to planning permission dated 21st Februrary 2018 (RN:17/05855/FULL) for Variation of Condition 1 of planning permission dated 19 October 2016 (RN:16/05155/FULL) for demolition of existing buildings known as Clare Market, The Anchorage, the East Building, St Clements (partial) and Tower One (partial) and redevelopment to provide replacement interconnected academic facilities for Class D1 and ancillary uses, comprising a two storey basement, a part six storey / part 13 storey building and a seven storey core extension to the St Clements building and associated cycle parking and other works; all arranged around a new public square namely, removal of two cycle stands.

    Received 15 Oct, published by the council 16 Oct 2026 Amendments
  • 26/06211/NMA Decided

    15 Portland Place London W1B 1PT

    Amendments to planning permission dated 21 July 2022 (RN:22/03521/FULL) which varied Condition 5 of planning permission dated 11 April 2018 (17/10815/FULL) for: Use of the building for a temporary period of 20 years as a medical use (Use Class D1) personal to OM Tower LLP namely to amend the wording of Condition 3 to omit the words " No one else may benefit from this permission" to allow the use by third party practitioners.

    Received 10 Sep, published by the council 16 Sep 2026 Amendments