What is the term for the urban layout that reflects the idea of a new town following the maximum expansion of a previous town?

The term that accurately describes an urban layout reflecting the concept of a new town that follows the maximum expansion of a previous town is "Neopolis." This term is derived from Greek origins, where "neo" means new and "polis" means city. It characterizes urban planning that embraces growth by establishing a new city adjacent to or in relation to an older, already existing city.

In contrast, "Paleopolis" refers to an ancient or original city rather than a new one. "Acropolis" specifically denotes a high city, often used to refer to the elevated sections of cities in ancient Greece, which served as the center for political and religious activities. The term "Polis" is a more general Greek term for a city or city-state without the specificity of indicating a new development. This background reinforces why Neopolis is the most fitting term for the described urban phenomenon.