Collection O Diamond House Khaosan has a shared lounge, terrace, a restaurant and bar in Bangkok. With a garden, the 3-star hotel has air-conditioned rooms with free WiFi, each with a private bathroom. The property has room service and a 24-hour front desk for guests. The rooms at the hotel come with a seating area and a flat-screen TV with satellite channels. All rooms have a desk. At Collection O Diamond House Khaosan guests are welcome to use a hot tub. Popular points of interest near the accommodation include Khao San Road, Bangkok National Museum and Wat Saket. Don Mueang International Airport is 16 miles from the property.