Built for St Catharines banker Francis Blaikie, on 40 acres of land purchased from the Read family in 1904. Name shared with “Holy Dean” built by Blaikies 300 years ago in Bowden, Scotland and “Hollydene”, now part of Branksome Hall girls’ school in Toronto (built in 1879 by Francis Blaikie’s father, John Lang Blaikie).

January 16, 2017, ACO St Catharines supported motion proposed by Councillor Carlos Garcia requesting designation of “one of the most architecturally significant older homes in Port Dalhousie” and request to owners to make every effort to preserve it, when it is incorporated into a development that may include as many as eleven homes. Motion passed unanimously.

February 9 2017, developer withdrew demolition permit pending decision on designation.

May 11, 2017, Planning and Building services recommended designation of the interior and exterior. Aug 9, 2018, ACO St Catharines reports: “Hollydean is being preserved thanks to the efforts made by local councillors Carlos Garcia and Bruce Williamson and by ACO St. Catharines.