LEED offers several certification programs, some of which are currently being piloted or developed.

With the exception of LEED-Neighborhood Development, each of the LEED certification programs offers points to be gained in six broad categories:

  1. Sustainable site planning
  2. Safeguarding water and water efficiency
  3. Energy efficiency and renewable energy
  4. Conservation of materials and resources
  5. Indoor environmental quality
  6. Innovation and design process

The single-family home category (LEED for Homes) — which launched in January 2008 — also includes points for location and linkages, such as building within one-half mile of public transportation and other community services, as well as homeowner education and awareness.

Based on the number of points earned, LEED provides four progressive levels of certification: Certified, Silver, Gold and Platinum.

Water Efficiency

Because LEED certification takes a holistic approach to a building’s structure and exterior landscape, the water efficiency category includes indoor water use, wastewater reuse, as well as water-efficient landscaping and irrigation. Water use reduction rates are totaled for the building – including all toilets, urinals, lavatory faucets, showers and kitchen faucets. They are not per-fixture reductions. The following table highlights the number of points that can be earned for each type of LEED certification, and indicates the number of points that can be impacted by water use reductions in faucets and other bath fixtures.

Program Total Points Water Efficiency Points Fixture-Related Points Maximum Reduction
New Construction 69 5 2 30%
Existing Buildings:
Operations and Maintenance
92 10 3 30% (from baseline)
Commercial Interiors 57 2 2 30%
Core and Shell 61 5 2 30%
Homes 136 15 6
  • lavatories = 1.5 gpm (or WaterSense® certified)
  • showers = 1.75 gpm per stall
  • toilets = 1.1 gpf
Neighborhood Development (Pilot) 106 4 2 30% for non-residential buildings

For residential buildings:

  • lavatories = 2.0 gpm
  • showerheads = 2.0 gpm
  • toilets = 1.3 gpf

Go to the LEED Project Estimator