In the Roman period, domestic structures were built on the site, indicating that the area was no longer a sanctuary.

This site is significant for the study of the origins of Greek temple architecture and rural cults.

There is a legend recounted in Euripides that Medea buried her murdered children at a sanctuary of Hera Akraia as she fled from Corinth.

Herodotus tells the story of Periander stripping the clothes off of the Corinthian women at a sanctuary of Hera.

If the temple was still in use by the 4th-century, it would have been closed during the persecution of pagans in the late Roman Empire, when laws against non-Christian religions and their sanctuaries were enacted by the Christian emperors.

At the extreme southwest end of the sanctuary, there is a polygonal area of roughly 25 by 25 metres (82 by 82 ft) largely cut into the rock beside the cove.

The earliest structure at the site was an apsidal building of perhaps the late 9th century BC, which is thought to resemble the house-temple models known from the Argive Heraion.

In the 6th century BC, a Doric order tetrastyle-prostyle temple of about 10 by 30 metres (33 by 98 ft) was built a little to the west of the apsidal structure.

There was a wall to divide the west end of the cella and a screen in front of the cult statue.

The Doric order triglyph and metope frieze may have only extended along the eastern face, as few of the elements of this survive.

About 15 metres (49 ft) east of the Temple of Hera Akraia, there was a stone altar decorated with a triglyph and metope frieze dating from the early 4th century BC.

Immediately east of the altar was a two-storied stoa with an L-shaped plan, also thought to date to the late 4th century BC.

About 10 metres (33 ft) to the northeast of the settling tank there was a diversion point in the water channel with one branch directed to the cistern and the other to the L-shaped stoa.

Immediately south of the cistern was a double dining room, probably associated with the cult activity at the site.

The "Sacred Pool" features prominently in an effort by Tomlinson to reconstruct oracular practice at Perachora.

Subsequent scholarship has not accepted this theory and Tomlinson views the pool as a simple reservoir.

Around 75 metres (246 ft) east of the cistern lie the remains of a structure that dates perhaps to the 6th century BC.

During excavation a bronze bull was discovered, inscribed with Sikyonian letters and dating to the end of the 6th century BC.

It may have been a house-temple or a dining room, as evidenced by spits for roasting meat found inside.

Many diagrams and reconstructions of this structure show a door in the western side-wall; the gap in the stones, however, may have been created by a trial trench dug by an earlier excavator.

John Salmon, inter alia, has argued convincingly that Hera's cult title at Perachora was Akraia, while Limenaia was a secondary epithet.

[citation needed] About 540 metres (1,770 ft) east-northeast of the sanctuary, there was a hexastyle-prostyle fountain house (having six columns in its facade).

This fountain house is thought to date to the same time as the L-shaped stoa, which is the ultimate destination of the water of the system.

At intervals there were settling basins along the water conduit, including one immediately above the fountain house.

The unusual plan of the 6th century BCE temple of Hera Akraia coupled with its location on the remains of a 9th century BCE apsidal structure are of interest to the study of the development of the Greek temple as an architectural and cultic form.

While it has been proposed that the cult of Hera Akraia had chthonic elements,[4] this idea has not been generally accepted.

The reference in Strabo to an oracle may fit with the idea that the children of Medea were buried at the site, and thus explain any chthonic elements to the cult as pertaining to a heroon.

The sixth century BC temple and sanctuary of Hera Akraia, Perachora (Thesis).

Peloponnesian sanctuaries and cults: Proceedings of the Ninth International Symposium at the Swedish Institute at Athens.

"Das Heraion von Perachora: Eine sakrale Schutzzone in der korinthischen Peraia".