Planning application
25/06581/LBC
Sanctuary Buildings 20 Great Smith Street London SW1P 3BT
Proposal
Installation of external pipework between the first and second floors on the south elevation.
As published by the council, reference 25/06581/LBC
Timeline
Dates from the published record
-
15 Sep 2025
Received by Westminster
-
15 Oct 2025
Validated
Checked as complete and ready for consideration.
-
19 Feb 2026
Decision issued: Application Permitted
-
21 Jul 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
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
-
25/05903/LBC Awaiting decision
Sanctuary Buildings 20 Great Smith Street London SW1P 3BT
Replacement of raised modern floors at a higher level and internal glazed fall protection screens installation to levels 1, 2 and 3.
-
25/07203/FULL Awaiting decision
Sanctuary Buildings 20 Great Smith Street London SW1P 3BT
Temporary modification and subsequent reinstatement of a single section of curtain walling spanning between the basement and ground floor, to facilitate inclusive access while the main entrance is closed due to internal refurbishment works in that area. (Linked with 25/07204/LBC)
-
25/07204/LBC Awaiting decision
Sanctuary Buildings 20 Great Smith Street London SW1P 3BT
Temporary modification and subsequent reinstatement of a single section of curtain walling spanning between the basement and ground floor, to facilitate inclusive access while the main entrance is closed due to internal refurbishment works in that area. (Linekd with 25/07203/FULL)
-
25/06339/FULL Awaiting decision
Sanctuary Buildings 20 Great Smith Street London SW1P 3BT
Installation of external pipework between the first and second floors on the south elevation. (Linked with 25/06581/LBC)
-
26/02778/FULL Awaiting decision
Sanctuary Buildings 20 Great Smith Street London SW1P 3BT
Installation of automatic opening vents to window openings at levels 00, 01, 02 and 03 on east and west elevations.
-
26/01716/ADFULL Awaiting decision
Sanctuary Buildings 20 Great Smith Street London SW1P 3BT
Detailed proof that all the necessary licenses under the Highways Act have been secured/approved for the placement of any structures associated with the works on the public highway pursuant to condition 6 of planning permission dated 6th March 2026 (RN:25/07203/FULL).
Other heritage and listed buildings applications
In Westminster
-
26/04984/LBC Awaiting decision
47G Randolph Avenue London W9 1BQ
Installation of replacement fire surround.
-
26/04997/LBC Awaiting decision
Hanover Lodge Outer Circle Regent's Park London NW1 4HB
Erection of a morning room side extension. (Linked to 26/04996/FULL)
-
26/04979/LBC Awaiting decision
12 Brewer Street London W1F 0SF
Internal alterations including removal of internal enclosures; Replacement flooring, shelving and slatwall systems, staircase handrail repair and other associated joinery works.
-
26/04987/LBC Awaiting decision
Basement And Ground Floor 8 Ganton Street London W1F 7QL
Repainting of the existing timber shopfront, hand-painted fascia lettering, installation of a new hanging sign using the existing projecting sign bracket, and installation of a discreet fascia-mounted LED trough light.
-
26/04995/LBC Awaiting decision
Hanover Lodge Outer Circle Regent's Park London NW1 4HB
Erection of rear conservatory extensions and an entrance loggia to side with roof terrace above, together with associated landscaping and alterations. (Linked with 26/04994/FULL)