This document provides guidelines for the in-building physical infrastructure (IPI) requirements for new construction buildings in Saudi Arabia. It covers definitions of key terms, requirements for single dwelling units (SDUs) and multi-dwelling units (MDUs), as well as general construction guidelines. The document aims to ensure new buildings are equipped with high-speed ready IPI to facilitate cost-effective broadband installation. Adherence to these guidelines is compulsory for developers, consultants, and contractors. The guidelines foster competition by providing an open infrastructure for any communications service provider. Sharing of infrastructure like rooms and ducts is emphasized to optimize investments for all parties.