The report said the render system to the duplexes on the top floors must be replaced using construction components that are fire resistant, the Local Democracy Reporting Service said.
Warwickgate was originally a nine-storey office block built in the 1960s but was converted about 20 years ago to create 72 apartments.
Two more floors of lightweight construction were added to the original roof construction about seven years ago to create a further 10 duplex apartments.
The report added: “The property is within good proximity of fire and rescue services and as such we anticipate the response times would be relatively quick in an emergency.”
The owner of the building is Warwickgate Freehold Ltd.
Cladding on the construction of high-rise buildings has come under scrutiny since the Grenfell Tower disaster in London in 2017 which killed 72 people.
Combustible cladding was blamed for the speed at which the blaze engulfed the building.