Planning application
46 Portland Place London W1B 1NF
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
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.
As published by the council, reference 26/04128/LBC
Application record
- Reference
- 26/04128/LBC
- Category
- Heritage and listed buildings
- Status
- Pending
- Received
- 23 Jun 2026
- Validated
- 23 Jun 2026
- Postcode
- W1B 1NF
Site history
Applications at this address on the Westminster register
This site has had 4 applications since 2026.
-
26/05632/FULL Awaiting decision
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 26/04113/LBC)
-
26/04113/LBC Awaiting decision
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)
-
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)
Timeline
Dates from the published record
-
23 Jun 2026
Received by Westminster
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 18 August 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 65 days over the applications it decided in the last year.
What happens while it is decided
This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided heritage and listed building applications in a median of 93 days. More in our guide to how long planning decisions take.
About heritage and listed building applications
Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
46 Portland Place London W1B 1NF
87% 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 26/04113/LBC)
Awaiting decision Full applications Loft or dormer Windows or glazing -
46 Portland Place London W1B 1NF
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)
Awaiting decision Heritage and listed buildings Loft or dormer Windows or glazing 24 docs -
46 Portland Place London W1B 1NF
88% 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 docsDomestic -
52 Portland Place London W1B 1NH
87% historically approved · decision due ~12 Jan
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 35 docs -
52 Portland Place London W1B 1NH
90% historically approved · decision due ~12 Jan
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 34 docs -
4 - 5 Cavendish Mews North London W1W 6LA
Details of windows, rooflights and balustrades detailing pursuant to condition 2 of planning permission dated 12 June 2024 (RN:24/00473/FULL)
Granted Full applications Loft or dormer Windows or glazing 40 docs
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-
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-
26/06176/LBC Awaiting decision
46 Gloucester Place London W1U 8HG
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