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Venture House 27 - 29 Glasshouse Street London W1B 5DF

25/08970/NMAApproved

Approved on 5 March 2026

Council decision: Application Permitted

Site boundary (council red line)

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.

Received
10 December 2025
  1. Received10 Dec
  2. Validated10 Dec
  3. Consult.
  4. Target
  5. Decided5 Mar

Decided in 85 days

About this application

This is a planning application for a dormer extension at Venture House 27 - 29 Glasshouse Street London W1B 5DF. Westminster has handled 27,108 applications of this type. This one was decided in 85 days, 5 weeks longer than Westminster's typical decision time. The site is in the Regent Street conservation area, with 8 listed buildings nearby. There have been 16 other applications at this address. We hold 372 applications in total for the W1B postcode area.

Application details

Postcode
W1B 5DF

Planning application dates

Date validated
10 December 2025

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Regent Street
  • Listed building: Second Floor 84 - 86 Regent Street London W1B 5RROn or next to this site
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (22)

flood storage areas, listed buildings, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Planning history at this site

20 other applications at this property, newest first.

  1. 2026
    23 Oct

    Details of samples (photographs and specification) of the facing materials you will use, including glazing…

    PendingAll Other26/07289/ADLBC
  2. 2026
    24 Sep

    Infilling of an existing window at first floor level and associated works, in connection with the Phase 2…

    ApprovedListed building consent26/06559/LBC
  3. 2026
    12 Jun

    Details of facing materials pursuant to condition 16 of planning permission dated 30 July 2024 (RN…

    ApprovedApplication26/03868/ADFULL
  4. 2026
    9 Jun

    Samples (photographs and specification)of the facing materials you will use, including glazing, and…

    ApprovedListed building consent26/03784/ADLBC
  5. 2026
    8 Apr

    Venture House - Cornices LBC Condition 4 (Method Statement)

    ApprovedDischarge of conditions26/02309/ADLBC
  6. 2026
    8 Apr

    Details of biodiversity management plan in relation to green roof areas pursuant to condition 9 of planning…

    ApprovedDischarge of conditions26/02312/ADFULL

Source: Westminster

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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