Location radisson blu st helens hotel is located in a country house in the booterstown district of dublin ireland the hotel is within 1 km 05 mi of dublin bay and 5 km 3 mi from the city centre dublin international airport dub is 16 km 10 mi away hotel features the radisson blu st helens hotel is set in a restored historic mansion built from portland stone in 1750 the house looks over 4 acres of formal gardens with flower beds topiary and fountains as well as woodlands a