The Coal Authority has worked alongside the owner of Nottinghamshire hotel in a bid to repair damage caused by a crack in the ground beneath the site.
The damage to Thoresby Hall was reportedly caused by historical mining in the area.
A £150,000 project to repair the site was launched at the beginning of March, though work was soon paused amid the onset of lockdown and consequent closure of the hotel.
Contractors returned to site at the end of May in light of eased restrictions, enabling Warner Leisure Hotels to prepare for reopening in July.
Coal Authority project manager, Rob Pilmore said: “There were a few challenges, including initially carrying out the repairs without disturbing guests staying at the hotel.
“Due to the protected status of the hall and nature of the works, which included repairing carved stonework and the large decorative ceilings, we also required experienced stonemasons and specialist decorators.”
He added: “Once restrictions were lifted and we were back on site the project was completed within a month. Our framework contractors have done a fantastic job – they’ve since been approached to carry out work on other hotels in the group.”
Stuart Billington, head of property and capital Investment at Warner Leisure Hotels, said: “The works have been completed to the highest standard and the collaboration between the Coal Authority, their contractors and Warner Leisure Hotels worked incredibly well.
“With these works carried out and our continuing investment, we are able to maintain Thoresby Hall in all its glory for future generations to enjoy, while our guests can relax and explore the surrounding area for years to come.”