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


105 (left) and 95 (right) Moatfield Drive in Toronto. (Cushman & Wakefield)
Renderings of Toronto Fortune Centre at 95 and 105 Moatfield Drive. (TAES Architects, Sunray Group)
Sunray Group’s Ray Gupta (centre) at a renovation commence ceremony last month. (TAES Architects)






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Source: TRREB Marketwatch via
Source: TRREB Marketwatch via
Source: TRREB Marketwatch via
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Source: Teranet Q1 2026 Market Insights (
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