After the war, the congregation found accommodation in the elementary school. However, the space there was too small. On April 4, 1946, Peutz was commissioned to restore and rebuild the destroyed church. Peutz had test trenches dug to investigate whether there were any remains of an older church. On July 26, 1946, they discovered the foundations of the predecessors of the destroyed church. Peutz prepared a report and sent it to the RDMZ. The Rijksdienst was enthusiastic and decided to conduct further excavations. Indeed, some discoveries followed, including from the cloverleaf choir. However, this led to a delay in reconstruction. Work began in August 1948. The new Medardus Church was inaugurated on December 31, 1949. The tower was completed in June 1951, after which Monsignor Lemmens consecrated the church on June 24, 1951. The church Peutz built was heavily influenced by the destroyed pseudo-basilica. He was also guided by the results of the excavations. The trefoil choir can be seen on the map. Columns, old arch structures, and rediscovered Ionic capitals were reused. The church was rebuilt on the old foundations, which meant it was as wide as its predecessor.