The video discusses the development of new towns in Gilston, highlighting concerns about building on prime agricultural land and the Greenbelt. It explores the impact on local communities and the housing shortage, particularly for young couples like Hannah and Jamie. The concept of garden cities is revisited, with worries about infrastructure and the potential for dormitory suburbs. The need for more homes is acknowledged, but the challenge lies in deciding where to build them.

What historical context is provided about the concept of Garden Cities?

What is the main challenge mentioned regarding the construction of new homes?