McBane Ranch in Once Upon a Time in the West

Once upon a Time in the West (1968) I have always wondered, is the iconic Mcbane Ranch an original structure constructed for the film, or was it already in existence when Leone first shot it?

I understand it is still standing today in ‘Western Leone’. But what is the buildings history?

The ranch was build for OuTW and later also used for other SWs. It is called Rancho Leone and it is indeed still there.

If I’m not mistaken the ranch was built by re-using materials that were left over from a different film altogether (some kind of medieval epic I believe). I think Frayling was the one who found that out.