Planning Applications — Loft Conversions — 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

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

5 Buckingham Mews London SW1E 6NR

Erection of mansard roof extension, external alterations, replacement windows, and conversion of garage to study room.

Received 6 May 2026

13 Park Place Villas London W2 1SP

Replacement of lower ground floor rear extension; enlargement of existing two-storey side extension; works to loft level including installation of rooflights; alterations to fenestration; internal alterations to all floors and other minor works. [Linked to 26/02940/LBC]

Received 5 May 2026