150 Great Portland Street London W1W 6QD

1. 12 Aug 2025

   Received by Westminster

2. 5 Sep 2025

   Decision issued: Application Permitted

3. 21 Jul 2026

   Added to PlanIndex

Westminster granted permission on 5 September 2025, 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.

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.

• Flat 4 146 Great Portland Street London W1W 6QB

  25/05897/ADFULL Submitted 4 Aug 2025 50 yards away

  Detail of samples 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 4 of planning permission dated 27th July 2023 (RN:23/03389/FULL)

  Granted Full applications Windows or glazing 13 docs

• Flat 4 146 Great Portland Street London W1W 6QB

  25/05433/ADFULL Submitted 4 Aug 2025 50 yards away

  Detailed drawings of the new railings, windows, doors and roof lights pursuant to condition 5 of planning permission dated 27th July 2023 (RN:23/03389/FULL)

  Granted Full applications Loft or dormer Windows or glazing 13 docs

• 138 Great Portland Street London W1W 6PZ

  13/03776/AD7 Submitted 25 Apr 2013 50 yards away

  Display for a temporary period of six months of a non-illuminated estate agent's board on the face of the building at a height of between 3.0m and 4.6m above pavement level and measuring 1.2m x 0.9m.

  Granted Advertising 2 docs

• Ground Floor & Front Basem 138 Great Portland Street London W1W 6PZ

  03/08954/ADFULL Submitted 20 Nov 2003 50 yards away

  Details of proposed ramp pursuant to condition 1 of planning permission dated 27 October 2003 (RN 03/06365) for installation of new shopfront and associated alterations.

  Granted Full applications Windows or glazing 3 docs

• 138 Great Portland Street London W1W 6PZ

  03/06365/FULL Submitted 14 Aug 2003 50 yards away

  Installation of new shopfront, roller blind and ramp for disabled access.

  Granted Full applications Windows or glazing 8 docs

• 95 New Cavendish Street London W1W 6XF

  25/07751/ADFULL Submitted 27 Oct 2025 50 yards away

  Details of samples of facing materials pursuant to condition 3 (part) of planning permission dated 9th July 2024 (RN: 24/00892/FULL)

  Granted Full applications 9 docs

• 26/06232/NMA Awaiting decision

  37 Trevor Place London SW7 1LE

  Amendments to planning permission dated 17th July 2026 (RN 26/03030/FULL) for the Alterations including enlargement of louvres and installation of new plant in basement; landscaping of roof terrace; second floor windows replaced with door sets; partial demolition at ground and first floor levels to create new lightwell and landscaped courtyard. NAMELY, addition of a free-standing sauna to the second-floor roof terrace.

  Received 11 Sep, published by the council 21 Sep 2026 Amendments
• 26/06256/NMA Awaiting decision

  Queens Court Queensway London W2 4QN

  Amendments to planning permission dated 21st May 2026 (RN:25/05013/FULL) for Variation of conditions 1, 3, 8, 9 and 17 of planning permission dated 11th May 2022 (RN 18/09765/FULL) for the Change of use of rear part of Queensway Market to Retail, Financial and Professional services, Office and Restaurant (within Class E) use and 5 residential units facing Princes Court, reconfiguration of retail units along Queensway including introduction of Retail uses at Nos.23 and 33 (current entrances to Queensway Market) and use of Nos.25 and 41-43 Queensway as Restaurant uses, installation of new shopfronts to Nos.23 to 43 Queensway 23-43, erection of infill extension to rear at ground floor level, erection of two new pavilion structures for Retail use and associated new hard and soft landscaping on land between Queens Court and Princes Court, installation of green roofs, rooflights and mechanical plant within enclosures to first floor level roofs between projecting rear wings of Queens Court installation of kitchen extract ducts to rear elevations, and associated cycle parking, waste storage, plant and other ancillary alterations ('Application 2'). Namely, to vary the hours of operation for the refrigeration plant controlled by condition 6.

  Received 11 Sep, published by the council 21 Sep 2026 Amendments
• 26/06251/NMA Awaiting decision

  19 Cumberland Street London SW1V 4LS

  Amendments to planning permission dated 20th March 2026 (RN:25/08960/FULL) for Lower ground floor rear infill extension with terrace above, replacement of rear first floor conservatory, new roof level rear single dormer with access to third floor roof terrace, alterations to windows and external refurbishment, namely the change of conservatory gable roof to a flat GRP roof.

  Received 11 Sep, published by the council 18 Sep 2026 Amendments
• 26/06201/NMA Awaiting decision

  Almack House 28 King Street St James's London SW1Y 6QW

  Amendments to planning permission dated 16th April 2026 (RN:26/01487/FULL) for Installation of a mechanical plant at lower ground floor and installation of two grilles to two lower ground floor windows, namely change to approved grille.

  Received 10 Sep, published by the council 17 Sep 2026 Amendments
• 26/06212/NMA Awaiting decision

  10 - 11 Lancaster Gate London W2 3LH

  Amendment to Condition 12 (Whole Life Carbon) of planning permission dated 19th April 2024 (RN 23/04044/FULL) for Change of use from hotel to residential use (Class C3) with associated internal alterations to create 11 new units and external alterations comprising reconfiguration and recladding of the rear extension and restoration of the existing building. Namely to include additional requirement to evidence and justify where benchmarks cannot be achieved, consider mitigation measures and if none, evidence that all mitigation measures have been exhausted. (Linked with RN 26/06213/ADFULL)

  Received 10 Sep, published by the council 17 Sep 2026 Amendments