Welcome to the Tools section of the Whole Building Design Guide. These pages offer information on a variety of desktop or Web-based tools used in the building industry.

Click the 'Tool' heading to sort by ascending or descending order. In addition, narrow the list by selecting a tool category from the drop-down and clicking 'Apply'.

Tool Version
Athena Impact Estimator for Buildings 5.4.01 Software tool designed to evaluate whole buildings and assemblies based on internationally recognized life cycle assessment (LCA) methodology
Building for Environmental and Economic Sustainability (BEES) 2.1 BEES allows designers, builders, product manufacturers, and consumers to select cost-effective, environmentally-preferable building products based on consensus standards and designed to be practical, flexible, and transparent.
Building Life-Cycle Cost (BLCC) 5.3-21 The National Institute of Standards and Technology (NIST) developed the Building Life Cycle Cost (BLCC) Programs to provide computational support for the analysis of capital investments in buildings.
Facility Energy Decision System (FEDS) 8.1 The Facility Energy Decision System (FEDS) is an easy-to-use building energy efficiency software tool that quickly and objectively identifies energy efficiency improvements to maximize life-cycle savings.
Sustainable Facilities Tool (SFTool) Online The Sustainable Facilities Tool ( is an interactive website that shows users how to build, buy, and operate green.
TRACE® 3D Plus 4.0 TRACE® 3D Plus allows the latest HVAC systems and controls to be modeled quickly, precisely and with the intricacies of today's many building applications.