Alcazar Regis Guests checking into the 2x000D star rated Alcazar Regis in Madrid are assured of a warm welcome. No on site car parking is available at the hotel, however off site car parking is available. Dining is available at the hotel, which has it's own restaurant. Room Features Alcazar Regis. We are sorry, but smoking is not permitted in either the bedrooms or the public areas of the hotel. Rooms have wireless internet access available. Additional Info. An airport shuttle service is available from the hotel. Pets are welcome at the hotel. Hotel guests can make use of the concierge service that is provided.