The York Council is set to pocket nearly £3 million when it sells the site for a new 126 bed student accommodation.
Most of the bids for the site were for student housing although one developer wanted to build a care home on the site which is next to Walmgate and has views of the city walls.
The bids are revealed in a report to a Council Executive meeting
Willow House had 34 beds for elderly people and closed at the beginning of the year.
The Council says it is expecting student numbers in the city to increase by over 4000 during the next 10 years.