There is no discount for triple occupancy; passengers pay the double rate. (tourthetropics.com)
Please call for single occupancy and triple occupancy prices. (atlastravelweb.com)
If you wish to avail of ensuite rooms for triple occupancy with three single beds in hotels near Pimlico Underground Station, it would be prudent to visit Sidney Hotel and book your options in advance. (sidneyhotel.com)