The church of Crespi d'Adda is a perfect re-edition of the sanctuary of Santa Maria di Piazza di Busto Arsizio, the original city of the Crespi family.
The magazine "L'Edilizia Moderna" of October 1894 reports that "the reproduction of the sacred building of Busto Arsizio in Crespi d'Adda was carried out scrupulously both with respect to the overall size and with respect to the most minute architectural and decorative details".
It was built between 1891 and 1893, with a square plan with a base in Adda strain and culminates in a large octagonal dome, surrounded, on the external part, by a loggia refined by marble columns.
The rich decorations of the internal walls almost faithfully follow those of the Busto church, and reach their peak in the dome, in the representation of a starry sky on a clear night.
The only significant difference compared to the original Sanctuary of Busto lies in having kept "the floor level raised by about seventy centimeters above the level of the surrounding square, with the addition of a plinth made of local stump and a staircase in marble of Verona at the church door".