Under the California Model Water Efficiency Landscape Ordinance, turf area is limited to what percent of the irrigated area unless a water budget is developed?

• A. 10 percent
• B. 50 percent
• C. 25 percent
• D. 75 percent

Answer: (C)

Limiting turf area relative to the irrigated landscape is a key way to curb water use. The standard baseline is that turf can occupy 25 percent of the irrigated area. This keeps a portion of the landscape in lower-water-use design while still allowing some lawn where desired. If a water budget is developed and approved, that budget-based approach can determine how much turf is appropriate based on calculated water needs, giving flexibility beyond the fixed 25% cap while still meeting efficiency goals. The 25% figure provides a clear, enforceable starting point that nudges projects toward more water-efficient plantings and irrigation practices.