The group announced the acquisition of the Grade II listed building in Warwickshire last October, its first for more than 15 years.
It also pledged to invest more than £50 million restoring the historic property and transforming it into a 21st century Warner offering ahead of its launch in March this year.
Warner has since acquired Heythrop Park in the Cotswolds, growing its portfolio to 15 properties. Heythrop will open its doors as a Warner operation in 2020.
