xStar helps designers compare and optimize building performance. Autodesk® Revit® geometry and families are used to calculate building performance metrics including cost, energy code compliance (UA analysis), and ballpark heating/cooling loads.

Cost Analysis

• Real-time calculation of first cost and monthly loan payment
• Integrated (residential) cost database, updated quarterly
• Location specific costs (US only)

Energy Analysis

• UA energy code compliance analysis validated against REScheck
• Simplified balance point energy analysis provides ballpark annual heating/cooling loads

Embodied Carbon Analysis

• Coming soon!

Auto Code Minimum Model

• Automatically create an energy code minimum version of your design (currently IECC 2021 only)

Tradeoff Analysis

• View clear building performance metrics in numeric and chart form
• Use our integrated database to easily replace construction assemblies
• Copy, modify, and compare multiple building designs at once

Share Results

• Share designs and custom construction assemblies between xStar users
• Export quantity takeoffs, REScheck schedules, and more

Integrated Uncertainty Analysis

• Variability in costs or R-values? No problem! Use a range and see lower and upper bounds for your building performance estimates.