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

A drawing of ReHousing Co-Founder Michael Piper's triplex in Toronto's east end/ReHousing
Some of the housing configurations available through the design catalogue/ReHousing 












Renderings of the tower proposed for 1394 Robson Street in Vancouver. (Arcadis, Asia Standard Americas)
Renderings of the tower proposed for 1394 Robson Street in Vancouver. (Arcadis, Asia Standard Americas)
Source: CREA Stats XML via HomiesAI.com AI Harness for Realtors
Source: CREA Stats XML via 


Annacis Island
The Vue at 2830 Peatt Road in Langford, British Columbia. (Boardwalk REIT)