46 Portland Place London W1B 1NF

This site has had 4 applications since 2026.

• 26/04128/LBC Awaiting decision

  46 Portland Place London W1B 1NF

  Internal alterations to the rear of the first floor, comprising the removal of non-original partitions, fixtures, fittings and doors associated with the existing WC/shower block and kitchen within the closet wing, together with the removal of suspended ceilings to reinstate original ceiling heights in the principal rooms. The works include the installation of a new WC and tea point with associated partitioning, and the formation of a new opening between the library/study and rear seating area, detailed with matching cornices and skirtings to respect the historic character and fabric of the building.

  Submitted 23 Jun 2026 Heritage and listed buildings
• 26/04113/LBC Decided

  46 Portland Place London W1B 1NF

  New dormer windows, replacement of all non-original windows, previously proposed windows and relevant external glazed doors with new painted windows and new glazed painted external doors that encompass vacuum glazing together with reinstatement of suitable joinery profiles throughout. (Linked with 26/05632/FULL)

  Submitted 22 Jun 2026 Heritage and listed buildings
• 26/02183/CLEUD Awaiting decision

  46 Portland Place London W1B 1NF

  Confirmation on planning permission have been lawfully implemented by carrying out a material operation at the site, in accordance with the approved plans (Variation of condition 1 of planning permission dated 29 April 2016 (RN 14/12563/FULL) for the demolition of the rear extension to the building at lower ground, mezzanine, ground and first floor levels and rebuilding to include the creation of a terrace at rear first floor level. Excavation of additional basement levels and installation of plant at main roof and basement level all in association with the use of the property as a single family dwelling (Class C3) from RN 14/12563/FULL. NAMELY, to vary the approved drawings to enable additional excavation at basement levels, installation of photovoltaics at roof level, enlargement of the openings at ground and first floors, to change a window to a door to provide access to the terrace at rear first floor level and to alter the fenestration of the front elevation to the orangery with internal alterations at all floor levels)

  Submitted 1 Apr 2026 Lawful development

1. 18 Aug 2026

   Received by Westminster

2. 24 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 28 Aug 2026

   Added to PlanIndex

4. 12 Oct 2026

   Decision issued

5. 12 Oct 2026

   Status changed to Decided

   Previously Pending.

• 26/04113/LBC Decided

  46 Portland Place London W1B 1NF

  New dormer windows, replacement of all non-original windows, previously proposed windows and relevant external glazed doors with new painted windows and new glazed painted external doors that encompass vacuum glazing together with reinstatement of suitable joinery profiles throughout. (Linked with 26/05632/FULL)

  Submitted 22 Jun 2026 Heritage and listed buildings

1 later application on the register refers to this one:

• 26/04113/LBC Decided

  46 Portland Place London W1B 1NF

  New dormer windows, replacement of all non-original windows, previously proposed windows and relevant external glazed doors with new painted windows and new glazed painted external doors that encompass vacuum glazing together with reinstatement of suitable joinery profiles throughout. (Linked with 26/05632/FULL)

  Submitted 22 Jun 2026 Heritage and listed buildings

Westminster has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. More in our guide to what happens after a planning decision.

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.

• 46 Portland Place London W1B 1NF

  26/04128/LBC Submitted 23 Jun 2026 50 yards away

  90% historically approved · decision due ~18 Aug

  Internal alterations to the rear of the first floor, comprising the removal of non-original partitions, fixtures, fittings and doors associated with the existing WC/shower block and kitchen within the closet wing, together with the removal of suspended ceilings to reinstate original ceiling heights in the principal rooms. The works include the installation of a new WC and tea point with associated partitioning, and the formation of a new opening between the library/study and rear seating area, detailed with matching cornices and skirtings to respect the historic character and fabric of the building.

  Awaiting decision Heritage and listed buildings

• 46 Portland Place London W1B 1NF

  26/04113/LBC Submitted 22 Jun 2026 50 yards away

  90% historically approved · decision due ~19 Oct

  New dormer windows, replacement of all non-original windows, previously proposed windows and relevant external glazed doors with new painted windows and new glazed painted external doors that encompass vacuum glazing together with reinstatement of suitable joinery profiles throughout. (Linked with 26/05632/FULL)

  Decided Heritage and listed buildings Loft or dormer Windows or glazing 24 docs

• 46 Portland Place London W1B 1NF

  26/02183/CLEUD Submitted 1 Apr 2026 50 yards away

  84% historically approved · decision due ~27 May

  Confirmation on planning permission have been lawfully implemented by carrying out a material operation at the site, in accordance with the approved plans (Variation of condition 1 of planning permission dated 29 April 2016 (RN 14/12563/FULL) for the demolition of the rear extension to the building at lower ground, mezzanine, ground and first floor levels and rebuilding to include the creation of a terrace at rear first floor level. Excavation of additional basement levels and installation of plant at main roof and basement level all in association with the use of the property as a single family dwelling (Class C3) from RN 14/12563/FULL. NAMELY, to vary the approved drawings to enable additional excavation at basement levels, installation of photovoltaics at roof level, enlargement of the openings at ground and first floors, to change a window to a door to provide access to the terrace at rear first floor level and to alter the fenestration of the front elevation to the orangery with internal alterations at all floor levels)

  Awaiting decision Lawful development Extension Demolition +1 14 docs
  Domestic

• 44 Portland Place London W1B 1NE

  23/03776/ADLBC Submitted 6 Jun 2023 50 yards away

  Details of new decorative plaster work/restoration works to existing decorative plaster work pursuant to Condition 5 (vii) of planning permission dated 08 February 2023 (RN:22/06619/LBC)

  Granted Conditions 12 docs

• 52 Portland Place London W1B 1NH

  25/08376/FULL Submitted 17 Nov 2025 50 yards away

  88% historically approved · decision due ~12 Jan

  Internal and external works including demolition, refurbishment, restoration and alterations to 52 Portland Place as well as removal of existing external condensers at basement, ground, third and fourth floor level and provision of new, consolidated plant and screening at basement and third floor level alongside other associated works. (Linked with 25/08377/LBC)

  Awaiting decision Full applications Demolition 41 docs

• 52 Portland Place London W1B 1NH

  25/08377/LBC Submitted 17 Nov 2025 50 yards away

  90% historically approved · decision due ~12 Jan

  Internal and external works including demolition, refurbishment, restoration and alterations to 52 Portland Place as well as removal of existing external condensers at basement, ground, third and fourth floor level and provision of new, consolidated plant and screening at basement and third floor level alongside other associated works. (Linked with 25/08376/FULL)

  Awaiting decision Heritage and listed buildings Demolition 39 docs

• 26/05984/FULL Decided

  41 Sutherland Street London SW1V 4JX

  Replacement of front, side and rear windows with double glazed timber framed sash windows and replacement of a door with a double glazed timber framed door.

  Received 2 Sep, published by the council 11 Sep 2026 Full applications
• 26/06134/FULL Decided

  Flat 10H Hyde Park Mansions Cabbell Street London NW1 5BG

  Replacement of front and rear second floor level windows with slim-profile double-glazed panels, retaining the existing window and door frames.

  Received 8 Sep, published by the council 15 Sep 2026 Full applications
• 26/07258/FULL Awaiting decision

  16A Croxley Road London W9 3HL

  Installation of air to air heat pumps to offices and bedrooms.

  Received 22 Oct, published by the council 23 Oct 2026 Full applications
• 26/07193/FULL Awaiting decision

  98 Victoria Street London SW1E 5JL

  Shopfront alterations. (Linked with 26/07194/ADV)

  Received 21 Oct, published by the council 22 Oct 2026 Full applications
• 26/07187/FULL Awaiting decision

  Ground Floor Flat 151 Portnall Road London W9 3BN

  Erection of a single storey rear extension.

  Received 21 Oct, published by the council 22 Oct 2026 Full applications