St Ermin’s Hotel, St James, London

A hidden Edwardian courtyard hotel steps from St James’s Park and Westminster. Bonvoy elite benefits apply as standard Autograph Collection — no lounge, but a distinctive building and one of London’s better hotel bars.
St Pancras Autograph Collection, London

The restored Midland Grand Hotel — one of London’s greatest Victorian Gothic buildings, attached directly to St Pancras International. The building is the product; Bonvoy elite benefits are solid but secondary.
Sheraton Grand, Park Lane, London

Art deco grandeur since the 1920s, overlooking Green Park. One of the strongest Bonvoy elite packages in London — lounge access and breakfast from Platinum, in a genuinely historic building.
W London, Soho, London

Leicester Square’s boldest Bonvoy hotel since 2010 — 192 rooms, Europe’s largest disco ball, AWAY Spa. Upgrades are promised by Marriott policy and routinely ignored at check-in.
The London Edition Hotel

Leicester Square’s most theatrical Bonvoy hotel — bold design, a serious bar, and an AWAY Spa. Loyalty mechanics are thin and upgrades are the least reliable in the London portfolio.
JW Marriott, Grosvenor House, London

Park Lane’s first hotel, open since 1929 and overlooking Hyde Park. One of London’s strongest Bonvoy lounge experiences — but the full value only unlocks at Platinum Elite and above.