West 5 Status Update, Living Net-Zero Energy in London, ON

West 5 (www.west5.ca) is a sustainable community in London Ontario (Canada) that is powered entirely by the sun. The buildings include unsurprising features like extra insulation and good air tightness to drive down energy use, and solar panels everywhere (roofs, facades, and some parking) to generate enough energy to meet our needs. We use a local microgrid, sharing energy through a community net metered arrangement with our local utility (London Hydro). Our homes are market rate and we have a waiting list for tenants.

If we can make net-zero energy work in our harsh winters, then you can too, and we can help! Contact me for more info or to arrange a tour via www.evepark.ca, [email protected]

1. West 5 Master Plan Sifton, s2e, and Stantec

2. Google maps satellite photo: 2023

3. N Sifton Head Office Building Diamond and Schmitt Architects Key design features: 60,000 ft 2 Ground floor retail, 2 flrs . office R20 walls, R40 roof View dynamic glass 110kW PV roof, 55kW BIPV on S/W facades, ~265 kW PV parkade ASHP + VRF for HVAC Energy Recovery Enthalpy Wheel Automated LED lighting (daylight and occupancy controls) Green roofs on lower levels 20 kL cistern

4. Sifton Head Office Building Diamond and Schmitt Architects Key design features: 60,000 ft 2 Ground floor retail, 2 flrs . office R20 walls, R40 roof View dynamic glass 110kW PV roof, 55kW BIPV on S/W facades, ~265 kW PV parkade ASHP + VRF for HVAC Energy Recovery Enthalpy Wheel Automated LED lighting (daylight and occupancy controls) Green roofs on lower levels 20 kL cistern

5. Building 2: Commercial Offices Architects Tilman Ruth Robertson 2025-08 Key design features: 41,000 ft 2 4 floors of mixed medical office R20 walls, R40 roof 350kW PV roofs, BIPV on S/W/E facades, shared parking with HQ ASHP, HRVs for HVAC LED lighting + automation

6. Solar Parkade Sifton Centre Bldg. 2 Oak West Animal Clinic

7. Building 4: 1325 Riverbend (Helio) Diamond and Schmitt Architects Mixed-Use Residential, 2025-08 Key design features: 200,000 ft 2 Ground floor retail, 115 units res, 667-1800 ft 2 R20 walls, R50 roof PV roofs, BIPV on S/W/E facades ASHP, ERVs for HVAC DWHR LED lighting All-off switches

8. Key design features: 200,000 ft 2 Ground floor retail, 115 units res, 667-1800 ft 2 R20 walls, R50 roof PV roofs, BIPV on S/W/E facades ASHP, ERVs for HVAC DWHR LED lighting All-off switches Building 4: 1325 Riverbend (Helio) Diamond and Schmitt Architects Mixed-Use Residential, 2019

9. Legacy Park & surrounding buildings (conceptual render)

10. West 5 – Legacy Park Progress 2019-02

11. Legacy Park, 2025

12. Rental Town Homes Phase 1 Turner Fleisher Architects Key design features: 81 units in 11 blocks: 1-3 storey, 1-4 bedrooms, 1200-1950 ft 2 R30 walls, R50 roof Triple-pane low-e, low SHGC windows Air tight: 1.5 ACH50 PV roofs, south aligned ASHP, HRVs for HVAC DWHR LED lighting

13. Rental Town Homes Phase 1 Turner Fleisher Architects Key design features: 81 units in 11 blocks: 1-3 storey, 1-4 bedrooms, 1200-1950 ft 2 R30 walls, R50 roof Triple-pane low-e, low SHGC windows Air tight: 1.5 ACH50 PV roofs, south aligned ASHP, HRVs for HVAC DWHR LED lighting

14. Rental Town Homes Phase 2 Sifton Properties Ltd. 2019-09 (first closings, rest well underway) Phase 2 Key design features: 72 units in 13 blocks: 1-2 storey, 1-3 bedrooms, 1200-1950 ft 2 R30 walls, R50 roof Triple-pane low-e, low SHGC windows Air tight: 1.5 ACH50 PV roofs, south aligned ASHP, HRVs for HVAC DWHR LED lighting

15. Retirement Living Cornerstone Architecture 2025-08 Key design features: 233 units, 1200-1950 ft 2 R20 walls, R40 roof Triple-pane low-e, low SHGC windows Air tight PV roofs, south aligned ASHP, HRVs for HVAC LED lighting

16. West 5 - Work in Progress ( Spektra & Candella) 2025-08 Sifton Properties Ltd.

17. s2e’s role? Sustainability research & feasibility studies. Product diligence, business models. Consulting: master planned with Sifton, hired first consultants, helped manage first round of designs. Minority stake in development. Purchased land for EVE Park (developed independently, but with Sifton support). Ongoing research and business pilots on sustainable themes (microgrid, EV car share, micro-utility, ongoing product diligence, …)

18. www.west5.ca, www.evepark.ca www.chba.ca/net-zero/