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

This site has had 29 applications since 2025: 5 approved, 0 refused.

• 26/04967/ADLBC Withdrawn

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

  Details of installation of services and related fixtures pursuant to condition 8 (partial) of listed building consent dated 10 June 2025 (RN: 25/01205/LBC)

  Submitted 24 Jul 2026
• 26/04081/FULL Awaiting decision

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

  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)

  Submitted 22 Jun 2026 Full applications
• 26/04082/LBC Awaiting decision

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

  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 26/04081/FULL)

  Submitted 22 Jun 2026 Heritage and listed buildings
• 26/03809/ADLBC Decided

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

  Details of the new lightning protection pursuant to Condition 7 (part 8) (part) of listed building consent dated 11th June 2025 (RN:25/01205/LBC).

  Submitted 10 Jun 2026
• 26/02669/ADFULL Awaiting decision

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

  Details of safe maintenance access systems pursuant to condition 16 (partial) of planning permission dated 10 June 2025 (RN: 25/01204/FULL).

  Submitted 22 Apr 2026 Full applications
• 26/02621/ADLBC Awaiting decision

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

  Details of safe maintenance access systems pursuant to the partial discharge of condition 7 (Part 8) of listed building consent dated 11th June 2025 (RN: 25/01205/LBC).

  Submitted 21 Apr 2026 Conditions
• 26/02506/ADLBC Awaiting decision

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

  Detailed drawings of the new or adjusted ceilings pursuant to condition 7 (15) of listed building dated 11th June 2025 (RN:25/01205/LBC)

  Submitted 16 Apr 2026 Conditions
• 26/02376/ADLBC Awaiting decision

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

  Detailed drawings of the proposed works to the new and adjusted ceilings in the highly significant spaces pursuant to the partial discharge of condition 8 of listed building consent dated 11th June 2025 (RN: 25/01205/LBC).

  Submitted 10 Apr 2026 Conditions
• 26/02297/ADFULL Awaiting decision

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

  Details of refuse and recycling storage pursuant to condition 11 of planning permission dated 10 June 2025 (RN: 25/01204/FULL)

  Submitted 7 Apr 2026 Full applications
• 26/02280/ADLBC Awaiting decision

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

  Detailed drawings to show the buildings areas of high significance and details of the position, type, and method of installation of services and related fixtures. Pursuant to partially discharge elements of condition 8 of Listed Building Consent dated 11 June 2025 (RN 25/01205/LBC)

  Submitted 7 Apr 2026 Conditions

1. 11 Mar 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 6 May 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 66 days over the applications it decided in the last year.

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 91 days. More in our guide to how long planning decisions take.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

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

  25/07571/ADLBC Submitted 20 Oct 2025 50 yards away

  Details of new external fire escape, new pavement lights and supporting structure in the Weymouth Street lightwell, new or adjusted balustrades and railings, new guardrail and glass balustrade, new bronze grilles in the Florence Hall floor, alterations to the stage in the Jarvis Hall pursuant to Conditions 7 (Parts 4, 5, 6, 11, 12 and 13) of listed building consent dated 11 June 2025 (RN: 25/01205/LBC)

  Granted Conditions 7 docs

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

  26/02506/ADLBC Submitted 16 Apr 2026 50 yards away

  90% historically approved · decision due ~11 Jun

  Detailed drawings of the new or adjusted ceilings pursuant to condition 7 (15) of listed building dated 11th June 2025 (RN:25/01205/LBC)

  Awaiting decision Conditions 11 docs

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

  26/01923/ADLBC Submitted 24 Mar 2026 50 yards away

  90% historically approved · decision due ~3 Jun

  Detailed drawings of the a plan to show the building's areas of high significance and details of the position, type, and method of installation of services and related fixtures, including any fire safety works, in areas designated as "high significance", with particular regard to the Jarvis and Florence Hall, Main Foyer and Central Staircase pursuant to condition 8 of planning permission dated 11th June 2025 (RN:25/01205/LBC)

  Awaiting decision Conditions 29 docs

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

  25/07253/ADLBC Submitted 7 Oct 2025 50 yards away

  Details of a plan to show the building's areas of high significance and method of installation of services and related fixtures, including any fire safety works, in areas designated as "high significance", with particular regard to the Jarvis and Florence Hall, Main Foyer and Central Staircase pursuant to Condition 8 (part) of the listed building consent dated 11 June 2025 (RN:25/01205/LBC).

  Granted Conditions 58 docs

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

  26/01325/ADFULL Submitted 3 Mar 2026 50 yards away

  87% historically approved · decision due ~28 Apr

  Details of the new or adjusted balustrades and railings pursuant to Condition 16 (Part 6) of planning permission dated 11 June 2025 (RN 25/01204/FULL).

  Awaiting decision Full applications 11 docs

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

  26/01326/ADFULL Submitted 3 Mar 2026 50 yards away

  87% historically approved · decision due ~28 Apr

  Details of the mew awnings to Weymouth Street pursuant to Condition 16 (Part 7) of Planning Permission dated 11 June 2025 (RN 25/01204/FULL).

  Awaiting decision Full applications 5 docs

• 26/06295/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Installation of a new shopfront with Medication Dispensing Outlet.

  Received 15 Sep, published by the council 17 Sep 2026 Full applications
• 26/06297/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Alterations to rear elevation at basement level comprising replacement window and installation of double opening door.

  Received 15 Sep, published by the council 17 Sep 2026 Full applications
• 26/06294/FULL Awaiting decision

  15 Eaton Mews South London SW1W 9HP

  Installation of railings and sliding lantern light at main roof level in connection with the use of the roof as a terrace.

  Received 15 Sep, published by the council 22 Sep 2026 Full applications
• 26/06317/FULL Awaiting decision

  124 Hamilton Terrace London NW8 9UT

  Replacement of existing first-floor sash windows to the front and rear elevations with traditionally detailed painted timber, slim-profile double-glazed sash windows. (Linked to 26/06318/LBC)

  Received 15 Sep, published by the council 22 Sep 2026 Full applications
• 26/06273/FULL Awaiting decision

  9A Grosvenor Square London W1K 5AE

  Installation of natural Portland Stone paving to two front entrances. (Linked to 26/05473/LBC)

  Received 14 Sep, published by the council 22 Sep 2026 Full applications