The document provides details on 12 case studies related to geography revision. Case Study 5 examines a proposed planned development of 10,000 new homes in Mid Sussex, UK. The private developers aim to meet housing demand while reducing pressure on small villages and larger towns. Advantages include easing housing pressure, limiting urban sprawl, providing infrastructure in one development rather than many additions, and boosting local jobs and services. However, the development would replace low-grade farmland and impact the sparse local population.