ADU Business & Investor View
ADUs are not only a family housing solution. They can also be positioned as a repeatable small-scale housing product for rental income, backyard infill, municipal housing partnerships, and portfolio expansion.
Why repeatable models matter
Using a standardized Ontario-ready layout can improve cost control, simplify procurement, and make underwriting conversations easier.
| Metric | Reference figure |
|---|---|
| Reference model size | 634 sq ft |
| Layout | 1 bed / 1 bath |
| Turnkey range in planning package | $135,000–$180,000 |
| Material scaling note at 25 units | Approx. 25% savings vs single-unit material baseline |
CMHC angle
For multi-unit projects, CMHC’s MLI Select program is built around affordability, accessibility, and climate compatibility, with reduced premiums and longer amortization tied to points. For homeowners, CMHC also publishes refinance guidance specifically for creating self-contained secondary suites.
How to use this page
This is a strong place to speak to private investors, landowners, municipalities, or partners who need to understand the broader ADU business case in Niagara and Ontario.