A new £43 million mental health hospital, The Whiteleaf Centre, Bucks Health and Wellbeing Campus will open in November.
Construction is progressing well at the hospital which is based on the site of the old Manor Hospital in Bierton Road.
Under the plans, 40 bedrooms will be allocated to elderly people, with 20 for dementia patients and 20 for people with other illnesses.
A further 40 beds will be for adults and there will be 233 parking spaces, including 12 for disabled people.
The new unit will result in the closure of the nearby Tindal Centre and the John Hampden Unit at Stoke Mandeville Hospital.