As you do. One of the fibreglass gorillas from the "Wow! Gorillas" public art project organised by Bristol Zoo in 2011. We had one in the lobby when I worked at Axa -- some were bought by corporations and displayed publically; not sure what the story behind this one being on a balcony in Clifton is.
This one is the "I Spy" Gorilla, originally sited at Slimbridge Wetlands and Wildfowl Trust, which presumably explains the decoration, created by artist Dave Bain.
GPS Coordinates:
51.45137, -2.62367
Location: Hotwells