Further out

Further out in areas such as Me Linh Commune in Dong Anh District, prices have remained stable, ranging from less than VND10 million ($520) to VND16 million ($840) per sq.m.
Does “further out” here mean “in addition” or “furthermore”?
There is a definition of it in the link bellow but it seems doesn’t fit in this context.
www.urbandictionary.com/define.php?term=further%20out

Further out means “at a greater distance” from the center of things.

The Urban Dictionary is about as reliable as Wikipedia; sometimes, it’s highly useful, but often enough, it will lead you astray. In the 1960s, the drug culture started using “far out” to mean something was “groovy” and somewhat overwhelming in hipness. This definition is “far out, only to a greater degree.”

Good morning, Steve!
Thank you for your insightful reply.