14 - 16 Great Portland Street London W1W 8QW

1. 3 Nov 2026

   Received by Westminster

2. 5 Nov 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 29 December 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.

• Ashley House 12 Great Portland Street London W1W 8QN

  03/05116/FULL Submitted 30 Jun 2003 50 yards away

  Use of the ground floor for mixed retail (Class A1) and wholesale showroom purposes

  Granted Full applications 8 docs

• Ashley House 12 Great Portland Street London W1W 8QN

  08/02160/ADV Submitted 5 Mar 2008 50 yards away

  Display of an externally illuminated projecting sign.

  Granted Advertising 7 docs

• Basement And Ground Floor Ashley House 12 Great Portland Street London W1W 8QN

  25/00312/ADFULL Submitted 17 Jan 2025 50 yards away

  88% historically approved · decision due ~14 Mar

  Details of a delivery and operational management plan pursuant to Condition 8 of planning permission dated 9th January 2025 (RN:24/05110/FULL)

  Awaiting decision Full applications 3 docs

• Ashley House 12 Great Portland Street London W1W 8QN

  04/04290/ADV Submitted 4 Jun 2004 50 yards away

  Display of non-illuminated fascia and two non-illuminated projecting signs.

  Decided Advertising 5 docs

• Ashley House 12 Great Portland Street London W1W 8QN

  03/08498/AD7 Submitted 4 Nov 2003 50 yards away

  Display for a temporary period of six months of a non-illuminated 'to let' board located on the face of the building at a height of between 3m and 4.6m above pavement level and measuring 1.2m x 0.9m.

  Granted Advertising 2 docs

• Basement To First Floor 11 - 13 Market Place London W1W 8AH

  26/08979/TCH Submitted 10 Dec 2025 50 yards away

  Use of the public highway for the placing of 21 tables, 92 chairs, 6 planters, 2 parasol/heaters in an area measuring 9m x 12m in connection with the existing ground floor use.

  Granted 13 docs

• 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
• 26/07345/CLOPUD Awaiting decision

  New Scotland Yard Victoria Embankment London SW1A 2JL

  Installation of Solar Gard Stainless Steel 20 solar control film to the internal face of the existing fifth-floor glazing.

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