48 Portland Place London W1B 1NN

1. 27 Oct 2025

   Received by Westminster

2. 15 Apr 2026

   Decision issued: Application Permitted

3. 21 Jul 2026

   Added to PlanIndex

Westminster granted permission on 15 April 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.

This application deals with conditions on an existing permission, supplying the details a condition requires or asking to vary or remove one, without reopening the permission itself. More in our guide to planning application types.

• 11 Weymouth Street London W1W 6DD

  25/04041/ADFULL Submitted 13 Jun 2025 50 yards away

  Details of photographs to be provided to the City Council of the works of implementation at 7 Bentinck Street and conversion of 12 Upper Wimpole Street pursuant to Condition 19 of planning permission dated 15 July 2022 (RN: 22/01841/FULL)

  Granted Full applications 5 docs

• 11 Weymouth Street London W1W 6DD

  23/05187/ADFULL Submitted 27 Jul 2023 50 yards away

  Details of biodiversity management plan for the rear first floor green roof pursuant to Condition 13 of planning permission dated 15 July 2022 (RN: 22/01841/FULL)

  Granted Full applications 12 docs

• Stone House 9 Weymouth Street London W1W 6DB

  26/01145/P3JPA Submitted 24 Feb 2026 50 yards away

  Change of use of ground floor of 9 Weymouth Street, a Commercial, Business, Services (Use Class E) to Dwellinghouses (Use Class C3) Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) under Schedule 2, Part 3, Class MA (Commercial, business and service to dwelling houses).

  Granted Prior approval 20 docs
  Domestic

• 52 Portland Place London W1B 1NH

  25/08376/FULL Submitted 17 Nov 2025 50 yards away

  88% historically approved · decision due ~12 Jan

  Internal and external works including demolition, refurbishment, restoration and alterations to 52 Portland Place as well as removal of existing external condensers at basement, ground, third and fourth floor level and provision of new, consolidated plant and screening at basement and third floor level alongside other associated works. (Linked with 25/08377/LBC)

  Awaiting decision Full applications Demolition 41 docs

• 52 Portland Place London W1B 1NH

  25/08377/LBC Submitted 17 Nov 2025 50 yards away

  90% historically approved · decision due ~12 Jan

  Internal and external works including demolition, refurbishment, restoration and alterations to 52 Portland Place as well as removal of existing external condensers at basement, ground, third and fourth floor level and provision of new, consolidated plant and screening at basement and third floor level alongside other associated works. (Linked with 25/08376/FULL)

  Awaiting decision Heritage and listed buildings Demolition 39 docs

• Royal Institute Of British Architects 66 Portland Place London W1B 1AD

  26/04081/FULL Submitted 22 Jun 2026 50 yards away

  88% historically approved · decision due ~17 Aug

  Removal of an existing roof lantern and infilling of the opening with a new insulated timber roof construction at third floor roof level; replacement of three existing rooflights with new thermally improved rooflights at fifth floor roof level; and associated repair, waterproofing and roof works at 66 Portland Place. (Linked with 26/04082/LBC)

  Awaiting decision Full applications Loft or dormer Windows or glazing 16 docs

• 26/02704/ADLBC Decided

  New Zealand House 80 Haymarket London SW1Y 4TE

  Details of new visible security fixtures in the Royal Opera Arcade pursuant to condition 7(f) of listed building consent dated 12th February 2021 (RN: 19/07816/LBC). Linked to 26/02618/ADFULL

  Received 21 Apr, published by the council 21 Jul 2026 Conditions
• 26/04860/ADLBC Granted

  New Zealand House 80 Haymarket London SW1Y 4TE

  Details of external and internal signage strategy pursuant to Condition 7(E) of listed building consent dated 12th February 2021 (RN: 19/07816/LBC)

  Received 20 Jul, published by the council 1 Aug 2026 Conditions
• 26/04843/ADLBC Granted

  New Zealand House 80 Haymarket London SW1Y 4TE

  Detailed design and specification of new blinds to NZH based on mock-up trials on-site pursuant to Condition 6(m) of listed building consent dated 12th February 2021 (19/07816/LBC).

  Received 20 Jul, published by the council 1 Aug 2026 Conditions
• 26/04850/ADLBC Awaiting decision

  17 Belgrave Square London SW1X 8PG

  Detailed drawings of garage doors, roof lantern and any new lighting and flooring in the principal rooms pursuant to condition 6 (iii) (iv) (v) of listed building 18th August 2025 (RN:25/03417/LBC)

  Received 20 Jul, published by the council 1 Aug 2026 Conditions
• 25/07120/ADLBC Granted

  72 - 74 Lancaster Gate London W2 3NH

  Details of new and altered doors and door architraves, including external faces of lifts (detailed elevations and sections at 1:10) pursuant to Condition 3 (A) of Listed Building Consent dated 14 December 2023 (RN: 23/00772/LBC) (Linked app: 25/07088/ADFULL)

  Received 2 Oct, published by the council 21 Jul 2026 Conditions