Rectangular building with three narrow chambers, each opening into a long corridor to the north, which extends along the whole width of the building. The area is enclosed with a stone wall and the whole structure has been interpreted as a shrine; in the central room was found a "xoanon" (statue) of the deity worshiped here. In the west room, where the altar stood, was uncovered, according to the excavator, the first human sacrifice to have ever taken place in Minoan times.

The building at Anemospelia was used for only half a century, as it was suddenly destroyed by an earthquake in the middle of the 17th century B.C. The "Minoan Megaron" at Nirou was excavated in 1918 by St. Xanthoudides. In 1960, under the supervision of the Ephor of Antiquities N. Platon, the site was fenced and the building restored. The monument is consolidated and cleared at intervals by the 23rd Ephorate.

The site was excavated in the summer of 1979 by John Sakellarakis. The walls of the building have been consolidated.