26/04247/NMAPlanning Application 26/04247/NMA
Amendment application at 7 Stratton Street London W1J 8LE, Westminster. View planning documents, track the decision and get email alerts on updates.
Amendments to planning permission dated 7th April 2025 (RN:23/05074/FULL) for Erection of one additional floor at fifth floor level and infilling of rear lightwell from lower ground floor to fourth floor to provide additional office (Class E) accommodation; creation of terrace at rear fifth floor for use in association with office (Class E) space, installation of Air Source Heat Pumps within acoustic enclosure at new roof level, addition of planter boxes and associated alterations to the front façade, and excavation of plant pit at basement level to provide space for emergency plant equipment. Namely, alterations to the approved front elevation, including the widening of the existing entrance door opening, revisions to front façade detailing, the installation of discreet architectural lighting to the front elevation, and the introduction of a roof access hatch.
26/04247/NMA
7 Stratton Street London W1J 8LE
This is an application to amend a permission at 7 Stratton Street London W1J 8LE. Westminster has handled 604 applications of this type and approves 80% of them, typically deciding them in 40 days. It was submitted on 26 June 2026 and is still awaiting a decision. The site is in the Mayfair conservation area, with 12 listed buildings nearby. There have been 3 other applications at this address. In the past year there have been 561 applications across West End. We hold 629 applications in total for the W1J postcode area.
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Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Westminster