Belfast·SPG008 Advertising and Signage·Page 23·5.5.6
Blinds, awnings and canopies - design guidance
Blinds, awnings and canopies must be retractable and made from non-reflective material, integrated with the building's appearance, and positioned at least 2.25m above ground level for public safety.
Blinds, awnings and canopies should be retractable, made from non-reflective material and be designed to integrate with the appearance and construction of the commercial premises / shopfront as a whole. In the interests of public safety, blinds, awnings and canopies should be a minimum of 2.25m above ground level.
Source — /Users/richardhill/Documents/planning-arch-project/data/documents/belfast/SPG008 Advertising and Signage.pdf