Where: 11 Cadogan Gardens
Cost: £25 per person
Best for: A truly peaceful, relaxing experience.
If the bustling tea rooms of the larger hotels don't appeal to you, head to this oasis of calm in Knightsbridge, where you can enjoy your tea next to a roaring fire, or out in a pretty covered terrace. This boutique hotel feels more like someone's (very large, very luxurious) home, and you'll get exceptional but unobtrusive service as you sip first from a glass of Champagne, then from a long list of special teas. The food spread includes all the classic afternoon tea options, plus a few modern twists, and it's all delicious. This is one of the best value teas in the capital, a best-kept secret we couldn't help but share!