Image by Vlada Karpovich found on Prexels
As drought conditions and water scarcity impact more regions across the United States, building managers are prioritizing water efficiency strategies that deliver long-term results. While simple conservation tips can help, achieving meaningful water savings in commercial buildings requires a structured, data-driven approach.
A successful water management strategy enables facility managers, engineers, and sustainability teams to reduce costs, improve operational efficiency, and support environmental goals year after year.
Below are the key components of an effective long-term water efficiency strategy.
Establish a Water Usage Baseline
Many facility managers lack accurate data on their monthly/annual water consumption, making it difficult to identify inefficiencies or measure progress. Establishing a baseline is the foundation of any successful water efficiency program.
Start with a comprehensive water audit, which evaluates how and where water is used throughout the building. Larger facilities may benefit from professional audits, while smaller properties can often conduct assessments internally.
Focus on these high-impact areas:
Restrooms
Breakrooms and commercial kitchens
Cooling towers and HVAC systems
Irrigation and landscaping
Cleaning and janitorial operations
In most commercial buildings, restrooms account for the largest percentage of water use, making them a primary target for efficiency improvements that require minimal occupant behavior change.
Communicate Your Water Reduction Plan
Clear communication is critical to the success of any water efficiency initiative. Once the audit is complete, inform all stakeholders—including tenants, employees, and maintenance teams—about the plan.
Explain the key objectives:
Reduce overall water consumption
Lower utility and operating costs
Support sustainability goals
Protect local and regional water resources
Transparency helps drive participation and ensures long-term program success.
Set Measurable Water Efficiency Goals
Setting clear, measurable targets is essential for maintaining momentum and accountability. For example, many LEED-certified buildings aim to reduce water usage by 20% or more over a multi-year period.
Track performance using:
Monthly and quarterly water usage data
Submetering where available
Benchmarking against similar properties
Data-driven insights help identify the most impactful opportunities. In many cases, landscape irrigation and restroom upgrades deliver the highest return on investment.
Restroom Water Efficiency Upgrades
Since restrooms can account for 40–60% of total water use in a commercial property, upgrading fixtures is critical:
Install high-efficiency toilets (≤ 1.6 gallons per flush, or 1.28 GPF for newer models)
Install waterless urinals to significantly cut water usage and related costs
Add faucet aerators to reduce sink water consumption by 30–50%
Breakroom and Appliance Efficiency
Upgrade dishwashers, ice machines, and other appliances to ENERGY STAR® and water-efficient models
HVAC and Cooling System Optimization
Transition to air-cooled chillers where feasible
Capture and reuse HVAC condensate for irrigation, cleaning, and maintenance
Smart Irrigation and Sustainable Landscaping
Outdoor water use is often a major source of waste. Improve efficiency by:
Installing smart irrigation controllers that adjust based on weather and soil moisture
Converting to drip irrigation systems
Using native and drought-tolerant plants
Watering during early morning or evening hours to reduce evaporation
Monitor, Measure, and Report Water Savings
Continuous monitoring is essential to sustaining a successful water efficiency program. Regularly tracking performance ensures that systems are operating efficiently and that savings targets are being met.
Best practices include:
Monitoring water usage trends over time
Identifying leaks or inefficiencies early
Adjusting strategies based on performance data
Equally important is sharing results with stakeholders. Reporting measurable water savings and cost reductions reinforces program value and supports ongoing engagement.
Final Thoughts: Long-Term Water Savings Start with a Plan
Implementing a long-term water efficiency strategy for commercial buildings is no longer optional, it’s a business and environmental necessity. By establishing a baseline, setting clear goals, upgrading systems, and continuously monitoring performance, building managers can achieve measurable water savings, lower operating costs, and improved sustainability outcomes.
