Ottawa has relaxed their lighting restrictions but are still quite limiting. All exterior building lighting has to be Dark Sky compliant. You can see this regulation in 1.6 of Ottawa's High Performance Development Standards, you can find the "Dark Sky" regulations on which I posted below.
That being said, one main thing is you cannot have uplift lighting in which the Renaissance had proposed earlier on which would have been really game changing for Ottawa's standards but unfortunately they had to remove those from the plan.
Claridge is close to completing the strip lighting for the south tower, so that will be another welcomed addition to the dark section of Lyon.
1.6 Exterior Lighting
Exterior lighting is important to ensure nighttime safety of the site but the light pollution it causes can have negative effects on neighbouring residents, and local natural species. Nocturnal animals and migratory birds are particularly vulnerable to these impacts. Minimizing light pollution through Dark SkyTM compliant fixtures helps to mitigate these impacts.
Requirement
All exterior lighting fixtures will be Dark Sky compliant (full cut-off). No uplighting.
Dark Sky Compliant fixture(s) must have the
Dark Sky Fixture Seal of Approval (link is external) which provides objective, third-party certification for lighting that minimizes glare, reduces light trespass and doesn’t pollute the night sky. If a Dark Sky Fixture Seal of Approval is not available, fixtures must be full-cutoff and with a colour temperature rating of 3000K or less.
