Church of Santa Maria e San Donato in Murano, Republic of Venice completed.
Church of St Mary and St David, Kilpeck, and first stone Church of St John the Evangelist, Shobdon, both by members of the Herefordshire School in England, built.
Great church of Cîteaux Abbey begun.
1143 – In the Kingdom of Sicily
Trani Cathedral completed (except the campanile).
Mosaic decoration of Cappella Palatina in Palazzo dei Normanni, Palermo, partly completed.
1144: June 11 – Basilica of St Denis near Paris in the Kingdom of France consecrated, the first Gothic church.
1145 – Basilica of Sainte-Trinité, Cherbourg, Normandy, consecrated.
Basilica of San Frediano in Lucca completed.
Saint-Pierre de Montmartre in Paris consecrated.
1149 – Akebäck Church on Gotland is inaugurated.
1149: July 15 – Church of the Holy Sepulchre in Jerusalem consecrated after reconstruction.
1140s in architecture Wikipedia