1. During Periods of Rapid Urbanization or Growth

When a city or region experiences accelerated growth, whether due to population increase, economic development, or infrastructural expansion, a master plan becomes essential. It helps in managing land use, infrastructure, and resources efficiently to accommodate the burgeoning needs. For instance, urban areas that have grown in size and complexity over the decades often require a master plan to regulate and shape this growth effectively.  

2. To Align with Long-Term Strategic Goals

A master plan serves as a blueprint for achieving a community’s long-term vision. When there is a need to set or realign strategic goals—such as enhancing sustainability, improving transportation networks, or diversifying the economy—a master plan provides the framework to guide these initiatives. It ensures that development efforts are cohesive and directed towards common objectives.​

3. When Updating or Revising Existing Plans

Over time, existing master plans may become outdated due to changes in demographics, technology, or environmental conditions. Regular updates, typically every 5 to 10 years, are recommended to ensure that the plan remains relevant and effective. This process involves assessing current conditions, gathering community input, and adjusting strategies to meet evolving needs.