Planning application
3 Cavendish Square London W1G 0LB
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Internal fit out of office space on the fourth and fifth floor level.
As published by the council, reference 26/05556/LBC
Application record
- Reference
- 26/05556/LBC
- Category
- Heritage and listed buildings
- Status
- Pending
- Received
- 14 Aug 2026
- Validated
- 14 Aug 2026
- Postcode
- W1G 0LB
Timeline
Dates from the published record
-
14 Aug 2026
Received by Westminster
-
22 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 9 October 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 61 days over the applications it decided in the last year.
What happens while it is decided
The process from here
This application is with Westminster for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About heritage and listed buildings applications
How this application type works
Heritage applications concern listed buildings and conservation areas. Listed building consent is needed for works, inside or out, that affect the special interest of a listed building, and carrying out such works without consent is a criminal offence. The council weighs harm to the heritage asset against any public benefit of the proposal.
More on heritage and listed buildings applications in our guide
Nearby applications
Within 500 metres
-
3 Cavendish Square London W1G 0LB
89% historically approved · decision due ~22 Oct
Renewal for a temporary period of six months for the display of a non-illuminated 'to let' board attached to the railings in front of the building at street level measuring 0.6m x 0.45m.
Awaiting decision 4 docs -
3 Cavendish Square London W1G 0LB
90% historically approved · decision due ~31 Dec
Internal fitout works to return a CAT B space back to a CAT A space as part of the landlord's dilapidation works.
Awaiting decision Heritage and listed buildings 9 docs -
Third Floor 3 Cavendish Square London W1G 0LB
Fit out works to the third floor
Granted Heritage and listed buildings 22 docs -
Underground Car Park Cavendish Square London W1G 0PG
89% historically approved · decision due ~16 Oct
Details of Site Environmental Management Plan pursuant to condition 3 of planning permission dated 24 May 2022 (RN: 19/08460/FULL).
Awaiting decision -
Underground Car Park Cavendish Square London W1G 0PG
92% historically approved · decision due ~13 Oct
Amendments to planning permission dated 24th May 2022 (RN:19/08460/FULL) for Demolition and erection of above ground structures in conjunction with the use of an underground car park (Sui Generis) as a flexible mixed use commercial development comprising uses within the following use classes A1-A5, B1,B2, B8, C1, C2, D1, and D2 along with the excavation of a 4th basement level, new entrances and associated landscaping and highways works to provide up to 25,953 sqm (GIA) of floorspace. Namely, a series of updated drawings relating to the southern entrance, gardeners pavilion, northeast pavilion, and the extent of pavement lights and grilles.
Awaiting decision Amendments Demolition -
2 Cavendish Square London W1G 0PA
87% historically approved · decision due ~31 Dec
Removal of existing plant equipment, Installation of new air source heat pump, two new air conditioning units and relocation of four existing air conditioning units within existing plant enclosure at roof level. Associated alterations to lift atrium roof.
Awaiting decision Full applications 15 docs
Other heritage and listed buildings applications
In Westminster
-
26/06025/LBC Awaiting decision
House Of Commons Palace Of Westminster Parliament Square London SW1A 0AA
Installation of new and replacement electronic equipment within Speaker. (Linked with 26/06024/FULL)
-
26/05971/LBC Awaiting decision
House Of Commons Palace Of Westminster Parliament Square London SW1A 0AA
Automation of door at principal floor level.
-
26/05962/LBC Awaiting decision
Royal Albert Hall Kensington Gore London SW7 2AP
Variation of condition 2 of listed building consent dated 26 March 2024 (RN: 24/00820/LBC) for the: Erect temporary access scaffolding platform at high level in the auditorium to inspect the condition of the plaster ceilings and main cornices. NAMELY, to allow the gantry to remain in place until December 2028.
-
26/05970/LBC Awaiting decision
Norman Shaw Building South Victoria Embankment London SW1A 2HZ
Replacement and installation of 16 electronic access control systems to Norman Shaw South
-
26/05943/LBC Awaiting decision
1 Barton Street London SW1P 3NG
Use of the building as F1(a) Education, along with associated internal and external alterations. (Linked with 26/05942/FULL)