Northumberland House Northumberland Avenue London WC2N 5BY

1. 30 Sep 2026

   Received by Westminster

2. 6 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 25 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 86 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 107 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.

• 8 Northumberland Avenue London WC2N 5BY

  26/00829/LBC Submitted 11 Feb 2026 50 yards away

  90% historically approved · decision due ~8 Apr

  External alterations, including replacement of the existing entrance screen, revolving door and canopy, creation of three secondary entrances, relocation of the platform lift; and internal works at lower ground, ground floor and mezzanine levels, including changes in floor level, changes to plan form, removal of some sections of wall, installation of a new staircase and goods lift (linked to 26/00828/FULL)

  Awaiting decision Heritage and listed buildings 50 docs

• 8 Northumberland Avenue London WC2N 5BY

  26/00828/FULL Submitted 11 Feb 2026 50 yards away

  88% historically approved · decision due ~8 Apr

  External alterations, including replacement of the existing entrance screen, revolving door and canopy, creation of three secondary entrances and relocation of the platform lift. (Linked to 26/00829/LBC) Listed building consent is sought for: "External alterations, including replacement of the existing entrance screen, revolving door and canopy, creation of 3no. secondary entrances, relocation of the platform lift; and internal works at lower ground, ground floor and mezzanine levels, including minor changes in floor level, changes to plan form, removal of some sections of wall, installation of a new staircase and goods lift and associated works."

  Awaiting decision Full applications 49 docs

• Trafalgar Buildings 1 - 3 Whitehall London SW1A 2DD

  25/09254/FULL Submitted 22 Dec 2025 50 yards away

  88% historically approved · decision due ~16 Feb

  Conversion of part basement, part ground and the upper floors of the existing buildings, and erection of a rear infill extension and external alterations to front facades and roof level, for use as a hotel and reprovision of retail units at ground level. [Linked to 25/09255/LBC]

  Awaiting decision Full applications Extension 75 docs

• Trafalgar Buildings 1 - 3 Whitehall London SW1A 2DD

  25/09255/LBC Submitted 22 Dec 2025 50 yards away

  90% historically approved · decision due ~16 Feb

  Conversion of part basement, part ground and the upper floors of the existing buildings, and erection of a rear infill extension and external alterations to front facades and roof level, for use as a hotel and reprovision of retail units at ground level. [Linked to 25/09254/FULL]

  Awaiting decision Heritage and listed buildings Extension 49 docs

• Trafalgar Buildings 1 - 3 Whitehall London SW1A 2DD

  26/05447/ADFULL Submitted 10 Aug 2026 50 yards away

  89% historically approved · decision due ~20 Oct

  Detailed site investigation and details of a written scheme of investigation pursuant to condition 7 and 28 of planning permission dated 15th June 2026 (RN: 25/09254/FULL)

  Awaiting decision

• Trafalgar Buildings 1 - 3 Whitehall London SW1A 2DD

  26/05876/ADV Submitted 27 Aug 2026 50 yards away

  82% historically approved · decision due ~22 Oct

  Display of a non-illuminated scaffold shroud comprising a 1:1 scale reproduction of the principal facade and two inset advertisement panels, each measuring 10m x 6m for temporary period from 31 October 2026 until 01 April 2028.

  Decided Advertising 4 docs

• 26/07221/CLEUD Awaiting decision

  Ground Floor Flat A 31 Fermoy Road London W9 3NH

  Confirmation of the lawful existing Use of Unit A, 31 Fermoy Road as a 4-bedroom HMO (Class C4).

  Received 21 Oct, published by the council 23 Oct 2026 Lawful development
• 26/07134/CLEUD Awaiting decision

  5A Motcomb Street London SW1X 8JU

  Confirmation of the planning consent 24/06560/FULL was lawfully implemented within the 3 year time limit period and as such the remainder of the works can be lawfully implemented.

  Received 16 Oct, published by the council 21 Oct 2026 Lawful development
• 26/06979/CLOPUD Awaiting decision

  15 Bridgewater House Hallfield Estate London W2 6EE

  Use as a private hire chauffeur business (administrative and booking management activities of AGR Chauffeurs Limited).

  Received 13 Oct, published by the council 18 Oct 2026 Lawful development
• 26/06991/CLOPUD Awaiting decision

  11 Grittleton Road London W9 2DD

  Installation of an external spiral staircase connecting these existing levels (the ground level terrace to the lower-ground level garden).

  Received 13 Oct, published by the council 15 Oct 2026 Lawful development
• 26/06932/CLOPUD Awaiting decision

  157 Oliphant Street London W10 4EA

  Installation of solar panels.

  Received 12 Oct, published by the council 13 Oct 2026 Lawful development