Serena’s great-great grandfather was commissioned by Thomas Cubitt to build this row of houses and liked the results so much he kept one for himself. They were built to rival Belgravia and have the same august credentials: pillars at the door, porticos and friezes, then high-ceilinged interiors as befits elegant Georgian architecture. Fast forward 160 years and the house, still in the same family, is now a chic B&B hotel, with a friendly brigade of international staff and a lovely sitting room in reception, where you can make a coffee and read the papers. Stylish bedrooms have all been recently refurbished. Expect vibrant colours, period wallpaper, robes in good bathrooms, perhaps a sofa or a bath in the room. You get smart phones, too; free WiFi, UK calls, even calls to the US and several EU countries. A delicious breakfast is served behind a wall of glass downstairs in a cool new dining room with a map of London on one wall; the far end turns into a bar at night. Victoria (and the train to Gatwick) and Buckingham Palace are close. The Harry Potter rooms are popular with younger guests.