This document provides an overview of fire safety design principles in buildings based on the Uniform Building By-Laws 1984 (Amendment 2021). It discusses key definitions related to fire safety and the objectives of fire safety in buildings. The presentation then covers important fire safety design principles like means of escape, internal fire growth and linings, internal fire spread and structural fire protection, external fire spread, and access and facilities for firefighting. Fire safety installation requirements outlined in the UBBL are also summarized, focusing on components like means of escape, internal fire spread, external fire spread, and fire alarm and fire extinguishment systems.