The temple included a ramp leading to a pronaos in the front and an enclosed opisthodomus in the rear. Thirty-eight Doric columns surround the stylogate with six columns alon the front and back. The exterior columns were constructed from Corinthian limestone and covered with a white stucco made from marble dust. Section of the entablature and foundations wre also constructed of thlimestone quaried from Mount Parnassus. Grey stone was used to consruct the naos (cella) and pavement. Cyprus wood beams supported the roof which was most likely construced of pure barble, mimking the Parthenon.

The first temple of Apollo was built in the 7th century BC but ruined by a fire. It was rebuilt in the 6th century BC with teh financial support of the Athenian family of Alkmaeonides. It was creconstructed for a third time in 330 BC but that temple too was devasted by an earthquake in 373 BC Athe temple was evenually destroyed in 390 AD by Emperor Theodosius I during his rant to eradicate all pagan shrines.

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The temple was excavated by the Ecole francais d'Athens in 1893-4, eight columns of the temple were re-erected. The reconstructed collumns appear to contain an extra column drum, making them too tall based on statistical analysis. If a column drum was removed, the column height would be @8.907 meters and makes more sense.