Dartmouth House

You're walking down one of Mayfair's most handsome streets when you spot the cream-coloured facade of Dartmouth House — a proper Grade I listed Georgian townhouse that's been hosting sophisticated gatherings since the 18th century. Step inside and you'll find high ceilings, period details and multiple rooms that can be configured for everything from intimate dinners to larger receptions. The venue's got that effortless Mayfair elegance without feeling stuffy — it's the kind of place where you can actually imagine yourself celebrating something important. Staff are genuinely helpful about tailoring the space to what you need.