| LINE | Name | Country | City | Regional Rail | |||
| Yonge to Richmond Hill | CA | Toronto | No | ||||
| CONSTRUCTION DETAILS | Start year | End year | Length (in km) | Tunnel (in km) | Tunnel | Stations | Source | 
| 2020 | 2030 | 7.4 | 7.4 | 100% | 6 | Plan | |
| COST INFORMATION | Cost (in M) | Currency | PPP rate | Year PPP | Real cost (in M$) | Cost/km (in M$) | Source | 
| 5,600.0 | CAD | 0.84 | 2020 | 4,925.0 | 665.5 | Media | |
| REFERENCE | https://www.thestar.com/news/gta/2020/06/24/metrolinx-considering-a-route-for-the-yonge-subway-extension-to-richmond-hill-that-would-take-it-above-ground.html | ||||||
| NOTES | The ‘Real cost’ values have been adjusted for inflation and PPP.  Sections of the line constructed in trench are represented with the same line style as the at-grade sections. The project maps are based on information retrieved from OpenStreetMap and our research. Please contact us if you have more accurate information regarding this project.  | 
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| Go to Toronto city page. | |||||||