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

150 Slater Street in Ottawa. (Regional Group)
150 Slater Street in Ottawa. (Regional Group)
Spring 2026 Housing Supply Report/CMHC
Spring 2026 Housing Supply Report/CMHC






Manuela Preis/Instagram




Renderings of the 65-storey tower previously proposed for 145 Wellington Street West. (Partisans with Turner Fleischer / SKYGRiD)