16 - 18 Connaught Place London W2 2ES

This site has had 2 applications since 2026.

• 26/06171/FULL Awaiting decision

  16 - 18 Connaught Place London W2 2ES

  Retrofit, remodelling and extension of existing office building comprising external and internal alterations, provision of additional office accommodation (Class E), replacement of existing curtain walling and other associated works, provision of roof terraces, external landscaping and other associated internal and external works. (Linked to 26/06172/LBC)

  Submitted 9 Sep 2026 Full applications

1. 9 Sep 2026

   Received by Westminster

2. 22 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 4 November 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.

1 later application on the register refers to this one:

• 26/06171/FULL Awaiting decision

  16 - 18 Connaught Place London W2 2ES

  Retrofit, remodelling and extension of existing office building comprising external and internal alterations, provision of additional office accommodation (Class E), replacement of existing curtain walling and other associated works, provision of roof terraces, external landscaping and other associated internal and external works. (Linked to 26/06172/LBC)

  Submitted 9 Sep 2026 Full applications

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided heritage and listed building applications in a median of 94 days. More in our guide to how long planning decisions take.

Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.

• 16 - 18 Connaught Place London W2 2ES

  26/06171/FULL Submitted 9 Sep 2026 50 yards away

  87% historically approved · decision due ~4 Nov

  Retrofit, remodelling and extension of existing office building comprising external and internal alterations, provision of additional office accommodation (Class E), replacement of existing curtain walling and other associated works, provision of roof terraces, external landscaping and other associated internal and external works. (Linked to 26/06172/LBC)

  Awaiting decision Full applications Extension Windows or glazing

• Bain House 16 Connaught Place London W2 2ES

  08/06487/FULL Submitted 22 Jul 2008 50 yards away

  Installation of air conditioning equipment to external terraces at rear third floor.

  Granted Full applications 7 docs

• Bain House 16 Connaught Place London W2 2ES

  08/05775/FULL Submitted 4 Jul 2008 50 yards away

  Replacement of eastern wing roof top a/c plant at 16-17. Connaught Place with 15 air conditioning condensers.

  Granted Full applications 8 docs

• Bain House 16 Connaught Place London W2 2ES

  07/03777/FULL Submitted 27 Apr 2007 50 yards away

  Erection of three new air conditioning units within an enclosure at front lower ground floor level.

  Granted Full applications 8 docs

• 17 Connaught Place London W2 2ES

  04/07892/AD7 Submitted 7 Oct 2004 50 yards away

  Display of Estate Agent Board.

  Granted Advertising 2 docs

• Bain House 16 Connaught Place London W2 2ES

  04/06640/AD7 Submitted 20 Aug 2004 50 yards away

  Display of Estate Agent Board. (Resubmission)

  Granted Advertising 3 docs

• 26/04878/LBC Decided

  34 Grosvenor Street London W1K 4QU

  Internal works to facilitate the subdivision of 34 Grosvenor Street and 3 Three Kings Yard

  Received 21 Jul, published by the council 1 Aug 2026 Heritage and listed buildings
• 26/06299/LBC Awaiting decision

  Apartment 33 24 Park Crescent London W1B 1AA

  Alterations to internal partitions, door openings, doors and floor finishes.

  Received 15 Sep, published by the council 22 Sep 2026 Heritage and listed buildings
• 26/06305/LBC Awaiting decision

  33A Dean Street London W1D 4PP

  Installation of new concrete slab with drainage channels at basement level and new fire surround in B.01.

  Received 15 Sep, published by the council 22 Sep 2026 Heritage and listed buildings
• 26/06318/LBC 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 26/06317/FULL)

  Received 15 Sep, published by the council 22 Sep 2026 Heritage and listed buildings
• 26/04141/LBC Decided

  80E Randolph Avenue London W9 1BG

  Replacement of sashes in two front windows at 2nd floor level and one rear window with slimline double glazed timber sashes. (Linked with 26/04142/FULL)

  Received 23 Jun, published by the council 21 Jul 2026 Heritage and listed buildings