Second Floor 16 Conduit Street London W1S 2XL

This site has had 3 applications since 2026.

• 26/01480/NMA Awaiting decision

  Second Floor 16 Conduit Street London W1S 2XL

  Amendment of planning permission dated 7 June 2016 (RN: 15/06533/FULL) for 'Dual/alternative use of the second floor for either office (Class B1a) or residential (Class C3) use (1 x 2 bedroom unit). Installation of 4 x external grilles at second floor level on the Mill Street elevation and 1 x external grille on Conduit Street elevation'. NAMELY to vary the wording of Condition 6 to allow the implementation of an alternative ventilation strategy.

  Submitted 9 Mar 2026 Amendments
• 26/01398/ADFULL Awaiting decision

  Second Floor 16 Conduit Street London W1S 2XL

  Details of waste storage arrangements pursuant to Condition 5 of the planning permission dated 7 June 2016 (RN: 15/06533/FULL)

  Submitted 4 Mar 2026 Full applications

1. 24 Feb 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 21 April 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 91 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 lawful development applications in a median of 106 days. More in our guide to how long planning decisions take.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• Second Floor 16 Conduit Street London W1S 2XL

  26/01398/ADFULL Submitted 4 Mar 2026 50 yards away

  88% historically approved · decision due ~29 Apr

  Details of waste storage arrangements pursuant to Condition 5 of the planning permission dated 7 June 2016 (RN: 15/06533/FULL)

  Awaiting decision Full applications 4 docs

• Second Floor 16 Conduit Street London W1S 2XL

  26/01480/NMA Submitted 9 Mar 2026 50 yards away

  93% historically approved · decision due ~4 May

  Amendment of planning permission dated 7 June 2016 (RN: 15/06533/FULL) for 'Dual/alternative use of the second floor for either office (Class B1a) or residential (Class C3) use (1 x 2 bedroom unit). Installation of 4 x external grilles at second floor level on the Mill Street elevation and 1 x external grille on Conduit Street elevation'. NAMELY to vary the wording of Condition 6 to allow the implementation of an alternative ventilation strategy.

  Awaiting decision Amendments 5 docs

• 6 - 8 Mill Street London W1S 2AZ

  25/06233/FULL Submitted 2 Sep 2025 50 yards away

  Installation of a metal framed structure, with part glazed and part retractable awning roof to first floor rear roof terrace, including some additional heaters and associated works.

  Granted Full applications Windows or glazing 21 docs

• 6 - 8 Mill Street London W1S 2AZ

  26/02839/ADFULL Submitted 29 Apr 2026 50 yards away

  88% historically approved · decision due ~24 Jun

  Detailed drawings of the fixed glazed awning and retractable awning pursuant to condition 3 of planning permission dated 17th March 2026 (RN: 25/06233/FULL).

  Awaiting decision Full applications Windows or glazing 3 docs

• 6 - 8 Mill Street London W1S 2AZ

  26/06892/FULL Submitted 9 Oct 2026 50 yards away

  88% historically approved · decision due ~4 Dec

  Variation of condition 1 of planning permission dated 31 August 2023 (RN:23/03515/FULL) for the: Relocation of air conditioning units from rear first floor roof to second floor rear flat roof, railings to second floor flat roof, installation of tiles to exterior rear ground floor level and installation of uplighters to the front facade. NAMELY, to allow provision of railings to two small back of house flat roofs (Application under section 73 of the Act).

  Awaiting decision Full applications

• Sofia House 19 Conduit Street London W1S 2BH

  26/05695/ADFULL Submitted 19 Aug 2026 50 yards away

  89% historically approved · decision due ~14 Oct

  Details of the pre-demolition audit in accordance with section 4.6 of the GLA's adopted Circular Economy; pursuant to condition 12 of Planning Permission dated 31 July 2026 (26/02841/FULL)

  Awaiting decision Demolition

• 26/07468/CLOPUD Awaiting decision

  14 - 16 Great Portland Street London W1W 8QW

  Confirmation the demolition of the existing outrigger structure at fifth floor level (the Proposed Works) constitutes the lawful commencement of development pursuant to the Permission.

  Received 3 Nov, published by the council 5 Nov 2026 Lawful development
• 26/07423/CLOPUD Awaiting decision

  103 Elgin Avenue London W9 2NP

  Painting of the decorative stonework, window frames and doors on the front elevation and front boundary wall

  Received 2 Nov, published by the council 4 Nov 2026 Lawful development
• 26/07454/CLOPUD Awaiting decision

  10 Stratton Street London W1J 8LG

  Changes to existing windows and doors

  Received 2 Nov, published by the council 5 Nov 2026 Lawful development
• 26/07381/CLEUD Awaiting decision

  Ground Floor Rear Flat 4 Mozart Street London W10 4LA

  Use of the ground floor rear flat as short-term visitor accommodation.

  Received 28 Oct, published by the council 5 Nov 2026 Lawful development
• 26/07339/CLOPUD Awaiting decision

  123 Victoria Street London SW1E 6DE

  Use of part of ground floor reception area within Class E including, but not limited to, a retail café (Class E(a)).

  Received 27 Oct, published by the council 30 Oct 2026 Lawful development