26/02183/CLEUDPlanning Application 26/02183/CLEUD

Amendment application at 46 Portland Place London W1B 1NF, Westminster. View planning documents, track the decision and get email alerts on updates.

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Confirmation on planning permission have been lawfully implemented by carrying out a material operation at the site, in accordance with the approved plans (Variation of condition 1 of planning permission dated 29 April 2016 (RN 14/12563/FULL) for the demolition of the rear extension to the building at lower ground, mezzanine, ground and first floor levels and rebuilding to include the creation of a terrace at rear first floor level. Excavation of additional basement levels and installation of plant at main roof and basement level all in association with the use of the property as a single family dwelling (Class C3) from RN 14/12563/FULL. NAMELY, to vary the approved drawings to enable additional excavation at basement levels, installation of photovoltaics at roof level, enlargement of the openings at ground and first floors, to change a window to a door to provide access to the terrace at rear first floor level and to alter the fenestration of the front elevation to the orangery with internal alterations at all floor levels)

26/02183/CLEUD

Small

Amendment

46 Portland Place London W1B 1NF

SubmittedSubmitted1 Apr

ValidatedValidated

ConsultationConsultation

TargetTarget Date

DecidedDecided

7 weeks typical decision time in Westminster80% of amendment applications approved

This is an application to amend a permission at 46 Portland Place London W1B 1NF. Westminster has handled 604 applications of this type and approves 80% of them, typically deciding them in 40 days. It was submitted on 1 April 2026 and is still awaiting a decision. The site is in the Harley Street conservation area, with 10 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 214 applications in total for the W1B postcode area.