Planning application
46 Portland Place London W1B 1NF
Works: Loft or dormer Windows or glazing
Relates to 26/05632/FULL
Decided. The decision notice on the council portal carries the outcome in full, including any conditions.
Proposal
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)
As published by the council, reference 26/04113/LBC
Application record
- Reference
- 26/04113/LBC
- Category
- Heritage and listed buildings
- Status
- Decided
- Received
- 22 Jun 2026
- Validated
- 24 Aug 2026
- Ward
- West End
- Postcode
- W1B 1NF
Site history
Applications at this address on the Westminster register
This site has had 4 applications since 2026.
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26/05632/FULL 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 26/04113/LBC)
-
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.
-
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
-
22 Jun 2026
Received by Westminster
-
21 Jul 2026
Added to PlanIndex
-
24 Aug 2026
Validated
Checked as complete and ready for consideration.
-
12 Oct 2026
Status changed to Decided
Previously Pending.
Related applications
Cases linked to this one on the register
-
26/05632/FULL 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 26/04113/LBC)
1 later application on the register refers to this one:
-
26/05632/FULL 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 26/04113/LBC)
Documents
Plans, drawings, consultee responses and the officer's report
24 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Watch members (£5 a month) open the document list from here.
Open the documentsAfter the decision
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.
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 0.3 miles
-
46 Portland Place London W1B 1NF
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
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)
Decided Full applications Loft or dormer Windows or glazing -
46 Portland Place London W1B 1NF
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 docsDomestic -
44 Portland Place London W1B 1NE
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
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
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
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