25/07377/FULLPlanning Application 25/07377/FULL

Full application at Marylebone Telephone Exchange Building 11 Nottingham Street London W1U 5EL, Westminster. View planning documents, track the decision and get email alerts on updates.

Enriching application data

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Council recordsAppealsFlood risk

Pending Decision

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Alterations to four existing windows with new louvre panels on the north facade at first floor level and removal of an existing external duct at second floor level on the south elevation and installation of four cooling ducts

25/07377/FULL

Small

Full

Marylebone Telephone Exchange Building 11 Nottingham Street London W1U 5EL

SubmittedSubmitted13 Oct

ValidatedValidated

ConsultationConsultation

TargetTarget Date

DecidedDecided

7 weeks typical decision time in Westminster84% of full applications approved

This is a full planning application for window replacement at Marylebone Telephone Exchange Building 11 Nottingham Street London W1U 5EL. Westminster has handled 4,496 applications of this type and approves 84% of them, typically deciding them in 73 days. It was submitted on 13 October 2025 and is still awaiting a decision. The site is in the Harley Street conservation area, with 6 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 221 applications across Marylebone. We hold 777 applications in total for the W1U postcode area.