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26/00434/NMA

Amendment application at 64 - 65 St James's Street London SW1A 1NF, Westminster. View planning documents, track the decision and get email alerts on updates.

Enriching application data
2/3
Council recordsAppealsFlood risk
Permitted
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Amendments to planning permission dated 2 September 2021 (RN: 21/02158/FULL) for: Demolition of the existing mansard roof and removal of plant and escape stair; erection of new double mansard roof extension and rear extension for additional commercial floorspace (Use Class E); and installation of new escape stair, rear balconies, roof terrace and associated works namely; increase in height of internal stair core roof; solid hinged access hatch with integrated glazed AOV replaced with sliding glazed access rooflight and separate glazed AOV.

26/00434/NMA

Small
Amendment

64 - 65 St James's Street London SW1A 1NF

Submitted26 Jan
Validated
Consultation
Target
Decided13 Mar
7 weeks typical decision time in Westminster80% of amendment applications approved

This is an application to amend a permission at 64 - 65 St James's Street London SW1A 1NF. Westminster has handled 604 applications of this type and approves 80% of them, typically deciding them in 40 days. This one was decided in 46 days, 6 days longer than Westminster's median. There has been 1 other application at this address. In the past year there have been 594 applications across St James's. We hold 1,027 applications in total for the SW1A postcode area.

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Application Details

Reference
26/00434/NMA
Address
64 - 65 St James's Street London SW1A 1NF
Postcode
SW1A 1NF
Local Authority
Westminster
Application Type
Amendment
Scale / Size
Small
Decision Status
Permitted

Applicant & Agent

Planning Application Dates

Date Decided
13 March 2026
Date Submitted
26 January 2026

Planning Decision

Publicity

Appeal

Additional Information

Coordinates
51.506153, -0.139318

Source: Westminster