Planning application
50 Eastcastle Street London W1W 8EA
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Installation of roof top plant and enclosures to provide upgraded mechanical services to the office floors.
As published by the council, reference 25/04435/FULL
Application record
- Reference
- 25/04435/FULL
- Type
- Full Planning Permission Application
- Status
- Decided
- Decision
- Application Permitted
- Received
- 27 Jun 2025
- Validated
- 2 Jul 2025
- Decided
- 17 Feb 2026
- Ward
- West End
- Decision by
- Delegated Decision
- Postcode
- W1W 8EA
Site history
Applications at this address on the Westminster register
This site has had 4 applications since 2025: 1 approved, 0 refused.
-
26/02248/ADV Awaiting decision
50 Eastcastle Street London W1W 8EA
Display of two externally illuminated fascia signs measuring 0.375m x 0.575, 0.17m x 0.28m, one non illuminated fasica sign measuring 0.48m x 0.87m and two non illuminated projecting sins measuring 0.5m x 0.783m, 0.3m x 0.385m.
-
26/02134/FULL Awaiting decision
50 Eastcastle Street London W1W 8EA
Installation of three new dry riser inlets to serve Princess House, 50-60 Eastcastle Street, as part of a wider fire safety enhancement strategy.
-
25/05048/FULL Awaiting decision
50 Eastcastle Street London W1W 8EA
Variation of Condition 1 of planning permission dated 7th February 2024 (RN:23/08597/FULL) for: Alterations to front entrance including replacement canopy; replacement of existing secondary doors and roller shutter to rear entrance; signage and other associated works namely; alterations to front entrance including replacement canopy; replacement of existing secondary doors and roller shutter to rear entrance; signage and other associated works.
Timeline
Dates from the published record
-
27 Jun 2025
Received by Westminster
-
2 Jul 2025
Validated
Checked as complete and ready for consideration.
-
17 Feb 2026
Decision issued: Application Permitted
-
30 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Agent on file, an architecture practice registered in London
17 applications on PlanIndex · across 5 councils · 100% granted
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
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.
Trade members open them from here.
Open the documentsWhat this grant of permission means
Westminster granted permission on 17 February 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
56-57 Eastcastle Street London W1W 8EQ
Approval of details pursuant to Condition 4 and 5 of planning permission dated 20 June 2011 (RN:11/03250), namely detailed drawings of a revised shopfront design and samples of the proposed shopfront materials.
Granted Full applications Windows or glazing 4 docs -
50 Eastcastle Street London W1W 8EA
87% historically approved · decision due ~15 Sep
Variation of Condition 1 of planning permission dated 7th February 2024 (RN:23/08597/FULL) for: Alterations to front entrance including replacement canopy; replacement of existing secondary doors and roller shutter to rear entrance; signage and other associated works namely; alterations to front entrance including replacement canopy; replacement of existing secondary doors and roller shutter to rear entrance; signage and other associated works.
Awaiting decision Full applications 21 docs -
50 Eastcastle Street London W1W 8EA
85% historically approved · decision due ~28 May
Display of two externally illuminated fascia signs measuring 0.375m x 0.575, 0.17m x 0.28m, one non illuminated fasica sign measuring 0.48m x 0.87m and two non illuminated projecting sins measuring 0.5m x 0.783m, 0.3m x 0.385m.
Awaiting decision Advertising 11 docs -
50 Eastcastle Street London W1W 8EA
87% historically approved · decision due ~26 May
Installation of three new dry riser inlets to serve Princess House, 50-60 Eastcastle Street, as part of a wider fire safety enhancement strategy.
Awaiting decision Full applications 14 docs -
Princess House 50 Eastcastle Street London W1W 8EA
Installation of six air conditioning units at roof level.
Granted Full applications 7 docs -
Princess House 50 Eastcastle Street London W1W 8EA
Installation of one air conditioning unit at roof level of No. 50-60 Eastcastle Street.
Granted Full applications 11 docs
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26/05935/FULL Awaiting decision
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Installation of three new condensers on the roof, within an existing designated plant area.