Colbert

You're walking into proper old-school French dining, the kind where they actually know what they're doing with a béarnaise and won't apologise for the prices. Colbert sits right on Sloane Square, watching the world go by through floor-to-ceiling windows, and it's got that particular energy of somewhere that's been consistently good for long enough that it doesn't need to try too hard. The dining room feels lived-in rather than fussy—red leather banquettes, vintage mirrors, the whole confident Parisian playbook executed with genuine poise. You'll spot the business lunch crowd jostling with tourists, regulars ordering the same things they always do, and groups of mates making an occasion of it.