Mimosa House 12 Princes Street London W1B 2LL

This site has had 2 applications since 2026.

• 26/03074/ADFULL Awaiting decision

  Mimosa House 12 Princes Street London W1B 2LL

  Details of the pre-demolition audit in accordance with section 4.6 of the GLA's adopted Circular Economy Statement guidance shall be submitted to us and approved by us in writing; pursuant to condition 25(a) of planning permission dated 17th March 2026 (RN 24/06571/FULL)

  Submitted 11 May 2026 Full applications

1. 11 May 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 6 July 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.

• Mimosa House 12 Princes Street London W1B 2LL

  26/03074/ADFULL Submitted 11 May 2026 50 yards away

  87% historically approved · decision due ~6 Jul

  Details of the pre-demolition audit in accordance with section 4.6 of the GLA's adopted Circular Economy Statement guidance shall be submitted to us and approved by us in writing; pursuant to condition 25(a) of planning permission dated 17th March 2026 (RN 24/06571/FULL)

  Awaiting decision Full applications Demolition 4 docs

• 11 Princes Street London W1B 2LJ

  04/01021/AD7 Submitted 11 Feb 2004 50 yards away

  Display for a temporary period of six months of a non-illuminated 'to let' board attached to the railings in front of the building at street level and measuring 0.6 x 0.45m.

  Granted Advertising 2 docs

• 283 Oxford Street London W1C 2DN

  04/01899/ADV Submitted 11 Mar 2004 50 yards away

  Display of halo illuminated fascia sign and projecting sign.

  Granted Advertising 4 docs

• 283 Oxford Street London W1C 2DN

  04/00461/ADV Submitted 22 Jan 2004 50 yards away

  Display of internally-illuminated fascia sign, halo-illuminated projecting sign, and full-height banner hoarding (for a 4 month period)

  Refused Advertising 6 docs

• 283 Oxford Street London W1C 2DN

  03/09662/FULL Submitted 17 Dec 2003 50 yards away

  Installation of a new shopfront, rear extension at first floor level and installation of 4 air conditioning units to rear.

  Granted Full applications Extension Windows or glazing 14 docs

• 285 Oxford Street London W1C 2DW

  26/04868/ADV Submitted 21 Jul 2026 50 yards away

  84% historically approved · decision due ~15 Sep

  Display of internally illuminated 3D detailing and graphics measuring 9.076m x 8.7m attached to the upper floors of the building for a temporary period from 31st August 2026 until 30th August 2027.

  Awaiting decision Advertising

• 26/06295/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Installation of a new shopfront.

  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 repolacement window and installation of double opening door.

  Received 15 Sep, published by the council 17 Sep 2026 Full applications
• 26/06287/FULL Awaiting decision

  Barness Court 6 - 8 Westbourne Terrace London W2 3UW

  Installation of a new riser as per GW10 design comprising a single riser with 7 entries and 9 Taylor valves to be installed. (Linked with 26/06288/LBC)

  Received 14 Sep, published by the council 21 Sep 2026 Full applications
• 26/06278/FULL Awaiting decision

  40 Wellington Road London NW8 9TJ

  Installation of a new external access ramp/slope to provide accessibility to the Barclays bank ATM.

  Received 14 Sep, published by the council 21 Sep 2026 Full applications
• 26/06269/FULL Awaiting decision

  Maisonette Basement And Ground Floor 101 Hereford Road London W2 5BB

  Amalgamation of existing lower ground and ground floor maisonette with the first floor flat to create a single dwelling and associated internal works including creation of a staircase. (Linked with 26/06270/LBC)

  Received 14 Sep, published by the council 21 Sep 2026 Full applications