Planning Applications — Change of Use — Westminster

25 Hill Street London W1J 5LW

Refurbishment and external alterations to No. 25 Hill Street comprising external repairs to front and rear facades, replacement linked two-storey Annex with roof terrace, rebuilding of rear mansard roof and creation of new internal mezzanine with spiral staircase access and roof terrace. Reconfiguring and landscaping the garden to the rear of 27 Hill Street and erection of pavilion building with new access point from Chesterfield Hill, consolidating replacement plant equipment, all in association with the continued office (Class E) use, and other associated works.

Received 28 May 2026

25 Hill Street London W1J 5LW

Refurbishment and external alterations to No. 25 Hill Street, comprising of external repairs to front and rear facades, replacement linked two-storey Annex with roof terrace, rebuilding of rear mansard roof and creation of new internal mezzanine with spiral staircase access and roof terrace. Reconfiguring and landscaping the garden to the rear of 27 Hill Street and erection of pavilion building with new access point from Chesterfield Hill, consolidating replacement plant equipment, all in association with the continued office (Class E use), sensitive internal alterations to restore historic character, and other associated works.

Received 28 May 2026

The Ritz Hotel 150 - 156 Piccadilly London W1J 9BR

Replacement of slate roof tiles on mansard roofs of Piccadilly, Green Park and Arlington Street elevations of the Ritz Hotel.

Received 22 May 2026

Duncan House Dolphin Square London SW1V 3PW

Change of use from ancillary residential (storage) to residential at ground and lower ground floors of Beatty House to create one self-contained duplex dwelling, including removal of existing lightwell cap, introduction of mezzanine floor, re-introduction of infilled windows, provision of external access, works to parapet wall and associated internal alterations

Received 20 May 2026

3 Chester Square Mews London SW1W 9DS

Detailed drawings of construction and window details of the new dormers to the mews; new garage doors; and New window and door to the ground floor mews elevation pursuant to conditon 4, a, b, c of listed building consent dated 22nd January 2025 (RN 24/08101/LBC)

Received 18 May 2026

House 1 42 Bell Street London NW1 5AW

Erection of two additional floors and installation of a lift and new stairs to central courtyard at first floor level and conversion of the three five-storey houses to form nine new flats together with alterations to stairs and installation of bin and cycle stores within the central courtyard of the site.

Received 11 May 2026