The Capital Development Authority (CDA) is responsible for the development and maintenance of the city of Islamabad, Pakistan. The CDA has a set of rules and regulations that govern the construction of buildings and other structures in the city. These rules and regulations are designed to ensure that the city is developed in a planned and orderly manner, and that the buildings and structures are safe and functional.
The CDA rules and regulations for construction are available in PDF here. This PDF document contains detailed information about the various rules and regulations that apply to construction in Islamabad. It includes information on building codes, zoning regulations, and other relevant topics.