cs:westminster:26/04082/LBCPlanning Application cs:westminster:26/04082/LBC
Planning application at Royal Institute Of British Architects 66 Portland Place London W1B 1AD, Westminster. View planning documents, track the decision and get email alerts on updates.
Removal of an existing roof lantern and infilling of the opening with a new insulated timber roof construction at third floor roof level; replacement of three existing rooflights with new thermally improved rooflights at fifth floor roof level; and associated repair, waterproofing and roof works at 66 Portland Place. (Linked with 26/04081/FULL)
26/04082/LBC
Royal Institute Of British Architects 66 Portland Place London W1B 1AD
This is a planning application at Royal Institute Of British Architects 66 Portland Place London W1B 1AD. Westminster has handled 18,803 applications of this type and approves 88% of them, typically deciding them in 56 days. It was submitted on 22 June 2026 and is still awaiting a decision. The site is in the Harley Street conservation area, with 8 listed buildings nearby. There have been 22 other applications at this address. We hold 214 applications in total for the W1B postcode area.
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Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Westminster