The final stages of a £2.6m restoration at Sewerby Hall near Bridlington are now under way.
East Riding Council's contractor has completed restoration work to take the hall back to how it would have looked during the country house's heyday of 1910.
Over the next few weeks, furniture, paintings and historical artefacts will be installed to recreate the historic look.
Councillor Stephen Parnaby, leader of the council, said: "Thanks to prudent financial management, the council is able to invest in its assets and the money being spent on Sewerby Hall reflects its importance as a tourist attraction and heritage asset.
"We are looking forward to opening the hall's doors on Saturday, August 9, and it will certainly be a must-visit for all families during the summer holidays."
He congratulated William Birch & Sons on a first-class job.
