Located five miles west of Ripon, on the edge of the Dales, the hotel is expected to open in spring 2019.
Earlier this year, Yorkshire-based building firm Lucas Lee was appointed to develop the property.
The Grade II listed country house will comprise 47 rooms and suites; seven food and beverage operations including both a pan-Asian and a fine dining restaurant; a wedding suite; a performance centre; and a spa.
Its restoration is being overseen by owners the Sykes family, who will add new buildings to the existing estate.
An on-site learning and development programme, Grantley Academy, will provide training and staff facilities, as well as a crew village for the hotel’s workers.
The property is over 300 years old, and historically it was used as a British country retreat for high profile guests including Queen Mary and the Princess Royal, as well as businessmen and wealthy families.
“We believe Grantley Hall will be one of the UK’s most exceptional five star luxury country house retreat experiences, combining rich heritage and 17th century splendour with beautiful contemporary design and state-of-the-art facilities, all set in the tranquil surroundings of the Yorkshire countryside,” says general manager Andrew McPherson.
“We can’t wait to welcome our first guests next spring to mark the beginning of this new and exciting chapter for Grantley Hall.”
Grantley Hall was purchased in 2015 by Grantley Hall Ltd, a company owned by the Sykes family. Planning permission applications began in 2016.