Lansdowne shortlisted for Heineken semis
The stadia have been deemed suitable whatever the outcome of the four quarter-final matches, which have yet to be played between April 11 and 13.
European Rugby Cup chairman Jean-Pierre Lux said: "The prime considerations of a semi-final venue are to accommodate a crowd in excess of 20,000, a city to cater in all aspects particularly ease of access and accommodation for the influx of thousands of fans while allowing those travelling supporters the opportunity to plan their trips well in advance."