Course : Ancient Greek Topography and Architecture

have a look at an attempt to explain the double stoa at THorikos, esp. page 171

https://eclass.uoa.gr/modules/document/file.php/BAAG112/The_Vanishing_Double_Stoa_at_Thorikos_an.pdf

And the columns of the double stoa at THorikos in the Doric Roman SW temple in the Agora 

and columns of the temple of Athena at Sounion in the Ionic ROman SE temple of the AGora

https://eclass.uoa.gr/modules/document/file.php/BAAG112/anchoring%20two%20floating%20temples.pdf

And a report on the temple of APollo at Zoster

https://eclass.uoa.gr/modules/document/file.php/ARCH1066/%CE%A6%CE%95%CE%92%2023%20%CE%A7%CE%9A%20%CE%96%CE%A9%CE%A3%CE%A4%CE%97%CE%A1%20%CE%93%CE%99%CE%91%20%CE%A0%CE%A1%CE%91%CE%9A%CE%A4%CE%99K%CE%91%202021%20combo.pdf

Urbanization of temples....