Share: Hotel Santa Costanza Prices and Availability Your browser does not support inline frames or is currently configured not to display inline frames. 5 Good reasons to book on our official website! Click here to enter... Your browser does not support inline frames or is currently configured not to display inline frames. Hotel Santa Costanza Via XXI Aprile, 4 - 00162 Roma | Tel. +39 06 8600602 - Fax +39 06 8602786 | E-mail: info@hotelsantacostanza.it COSTANZA 2011 S.r.l. Viale XXI Aprile 4 P.I./C.F. 11664901003 Cap.Soc. Euro 20.000 R.E.A. 1319996 / Reg.Imp. 11664901003 Powerd by EasyConsulting ® - Hotel Web Marketing