Royal Lancaster London allows dogs of any size for an additional fee of £20 per pet, per night. Cats may also be allowed by request. Four-legged guests are not permitted in the restaurants or bars. Please clean up after dogs and prevent excessive barking. Pets must be leashed or in a carrier in common areas and cannot be left unattended in the rooms. “Paw-Cierge” pet-sitting services can be arranged for £25 per hour, but please note that a minimum of 24 hours notice is required.