Orientation

• Is the long face of the building oriented to within 30 degrees of due south? (15 degrees is even better.)
  
  
• Is there unobstructed southern exposure
  
  
• Will trees grow to block the sun
  
  
• Might a building be built in the future that could block the sun?

Energy Efficiency

• Are you going beyond the code requirements for insulation? For the performance of windows?

Air Infiltration

• Are you taking extra care to ensure tight construction?

Windows

• Have you increased the south-facing window area to the maximum for your design choices
  
  
• Could casement windows be used to capture breezes
  
  
• Have you planned for cross-ventilation
  
  
• Are you using energy-efficient windows
  
  
• Have you considered using different windows for each face of the building
  
  
• Is there adequate shading on the south, east, and west windows?

Interior Design

• Are the main living spaces near south-facing windows?
  
  
• Are unused spaces such as closets and storage rooms on the north and west sides of the building
  
  
• Does the floor plan allow for the movement of heat in the winter and ventilation in the summer
  
  
• Is the garage located on the east, west, or north side?

Daylighting

• Does your design maximize the use of natural light
  
  
• Do you have light-colored interior surfaces?

Materials

• Are you using healthy building materials obtained from local sources?

Mechanical

• Have you downsized your mechanical system for the decreased energy demand
  
  
• Have you provided a means for ventilation in all living spaces of the building?
  
  
• Does your open plan allow for ease of air movement?

Solar Water Heaters

• Have you considered using a solar water heater?

Utilities

• Have you checked for financial incentive programs for energy-efficient construction or the use of solar energy?

Financing

• Have you looked for lenders that offer lower-rate energy-efficient mortgages?