Planning application
46 Portland Place London W1B 1NF
Works: Extension Demolition Windows or glazing Domestic
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Proposal
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)
As published by the council, reference 26/02183/CLEUD
Application record
- Reference
- 26/02183/CLEUD
- Type
- Certificate of Lawfulness (existing)
- Status
- Pending
- Received
- 1 Apr 2026
- Validated
- 1 Apr 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.
-
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)
-
26/04128/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.
-
26/04113/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)
Timeline
Dates from the published record
-
1 Apr 2026
Received by Westminster
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 27 May 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.
Who's behind it
Company information only, from the register and Companies House
HUB Architects and Designers Ltd. Agent, an architecture practice registered in Pinner
Active · incorporated 2006 · Pinner
14 applications on PlanIndex · across 3 councils
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
14 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.
Trade members open them from here.
Open the documentsWhat 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 lawful development applications in a median of 78 days. More in our guide to how long planning decisions take.
About lawful development applications
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.
Nearby applications
Within 500 metres
-
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
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 -
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
Other lawful development applications
In Westminster
-
26/06158/CLOPUD Awaiting decision
2 Hamilton Gardens London NW8 9PT
Erection of replacement, enlarged single storey ground floor rear extension.
-
26/06080/CLEUD Awaiting decision
91 Gloucester Place London W1U 6JG
Certificate of lawfulness for an existing use or development to confirm that the development authorised by full planning permission ref. 22/08385/FULL & listed building consent (RN 22/08386/LBC) has lawfully commenced as a result of the works evidenced.
-
26/06044/CLOPUD Awaiting decision
9 Abinger Mews W9 3SP
Proposed loft conversion with rear dormer and 3 front rooflights to existing mid-terraced house.
-
26/06035/CLOPUD Awaiting decision
30 Ashworth Road W9 1JY
Erection of new garden retaining wall and erection of new garden timber fence to match the height of existing fence.
-
26/05871/CLEUD Awaiting decision
32 Cambridge Street London SW1V 4QH
Confirmation of the lawful implementation of planning permission dated 13 August 2021 (RN: 21/04143/FULL) has commenced before the expiry of the three year time period and may, therefore, lawfully be carried out and completed.