Rainwater Harvesting System
A rainwater harvesting system collects and reuses rainwater, reducing utility costs and supporting sustainability.
September 30, 2025
What is Rainwater Harvesting System?
A rainwater harvesting system collects and stores rainwater from rooftops for reuse in irrigation, toilets, or other non-potable applications. Advanced systems may also filter water for potable use.
Why Rainwater Harvesting System Matters in Real Estate
It matters in real estate because rainwater harvesting reduces water costs, eases demand on municipal systems, and supports sustainability certifications. It is increasingly integrated into green building practices.
Example of Rainwater Harvesting System in Action
A commercial building installs a rainwater harvesting system to irrigate landscaping and flush toilets, reducing utility costs and environmental impact.
Key Takeaways
- Captures and stores rainwater for reuse.
- Reduces demand on municipal water supply.
- Supports sustainability and green certification.
- Common in residential and commercial developments.
- May include filtration for potable applications.
Related Terms
- Green Building Certification
- Stormwater Management
- Sustainability
- Building Envelope
- Water Conservation
September residential sales, not seasonally adjusted; the annual comparison uses CREA’s revised figures. Chart: 
Annual changes in the unadjusted national MLS® HPI and average sale price. The average is affected by the mix of transactions. Chart: 
Seasonally adjusted residential months of inventory by province. Local property types can differ substantially. Chart: 
Ontario and B.C. are the two provinces with forecast annual average-price declines in 2026. Chart: 
Annual average transaction prices in Canadian dollars. Forecast values are not December price targets. Chart: 
Five-year changes in seasonally adjusted composite MLS® HPI benchmarks, September 2021 to September 2026. Chart: 
