Current standard practice in architecture does not take into account the external societal costs that a building creates. To understand the total consequences of a building, one must consider all of the ecological and human health factors involved for a specific project and site. The aim of sustainable architecture is to construct a well-designed building and site environment that is healthy for the occupants, has minimal undesirable impact upon the environment, is effective in the use of natural resources, and is economical and durable. Although tangible impacts are visible only after construction begins, decisions made on the drawing board have long-term environmental consequences. The objective of this thesis is to present the information and tools available to the architect to create a sustainable project. With these tools, the architect can meet the challenges of sustainable design with an informed decision making process. This thesis defines sustainability as it applies to architecture, compares environmental performance rating systems and guidelines, discusses simulation, design, and life cycle analysis tools, outlines specific green building strategies, devises a methodology for prioritization, and summarizes design and construction procedures that incorporate these green concepts into the building process. The thesis finishes with a complete project plan that, when incorporated, will promote the realization of sustainable buildings.