Belfast·SPG008 Advertising and Signage·Page 20·5.5.3
High level advertisements for upper floor commercial premises
High level vertical or horizontal signs on tall buildings can advertise commercial premises in upper floors, which may be important for business viability.
Where commercial premises occupy the upper floors of buildings the need to advertise their whereabouts can be important to their viability. High level advertisements/signs generally relate to those vertical or horizontal signs on the walls of tall, single use buildings such as hotels.
Source — /Users/richardhill/Documents/planning-arch-project/data/documents/belfast/SPG008 Advertising and Signage.pdf