Ground Floor Rear Flat 4 Mozart Street London W10 4LA

1. 28 Oct 2026

   Received by Westminster

2. 5 Nov 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 23 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.

• 7A Mozart Street London W10 4LA

  25/08485/ADFULL Submitted 20 Nov 2025 50 yards away

  Details of planting plan and schedule pursuant to condition 6 of planning permission dated 27 June 2025 (RN: 25/00165/FULL).

  Granted Full applications 2 docs

• 7A Mozart Street London W10 4LA

  25/07049/ADFULL Submitted 1 Oct 2025 50 yards away

  Detailed drawings and a bio-diversity management plan in relation to living green sedum roof pursuant to condition 5 of planning permission dated 27th June 2025 (RN:25/00165/FULL).

  Granted Full applications 7 docs

• 2 Mozart Street London W10 4LA

  26/02416/FULL Submitted 13 Apr 2026 50 yards away

  88% historically approved · decision due ~15 Jul

  Replacement of existing single glazed timber framed sash and casement windows with new double glazed timber framed sash and casement windows to match existing style and opening, replacement of existing zinc flat roof with new 3 layer felt flat roof with thermal insulation to achieve Part L of the Building Regulations.

  Awaiting decision Full applications Windows or glazing 20 docs

• 2 Mozart Street London W10 4LA

  25/06594/FULL Submitted 15 Sep 2025 50 yards away

  Replacement of existing single glazed timber widows to double glazed uPVC windows and replacement of existing zinc roof. Replacement of zinc flat roof with thermal insulation to achieve Park L and new 3 layer felt flat roof (height increase by approx. 0.300m) to include rear additions.

  Refused Full applications Roofing Windows or glazing 29 docs

• Ground Floor 7 Mozart Street London W10 4LA

  25/05046/FULL Submitted 21 Jul 2025 50 yards away

  88% historically approved · decision due ~2 Oct

  Alterations to front elevation to form new entrance door and two windows at ground floor level and replacement pavement light in connection with the use of ground floor as residential (Class C3). Proposed: Alterations to front elevation to form new entrance door and two windows on front elevation at ground floor level and replacement pavement light in connection with the use of ground floor and basement as residential (Class C3). (Site include Ground Floor and Basement 7 Mozart)

  Awaiting decision Full applications Windows or glazing 34 docs

• 88 Bravington Road London W9 3AL

  25/07162/COFUL Submitted 3 Oct 2025 50 yards away

  Replacement of 4 front elevation windows with new double glazed timber units; Installation of 4 air bricks to front elevation; Replacement of dormer window to side elevation with new double timber door; and replacement of rear doors with new Aluminium units.

  Granted Full applications Loft or dormer Windows or glazing 22 docs

• 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
• 26/07339/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