Hand Picked Hotels' Crathorne Hall hotel in Yarm, North Yorkshire, will re-open for business on Monday 10 November, following a fire that damaged part of the hotel last month.
The historic main house, built in the early 20th century, is to open with 20 of its 37 bedrooms. The four-star hotel is also taking bookings for the fine-dining Leven restaurant, weddings, conferences and meetings.
However, work is continuing on the East Wing, which is away from the main part of the hotel. It is expected to open next year.
The fire was believed to have started in the roof space at the hotel. All guests and staff were evacuated safely. Around 100 firefighters took more than eight hours to bring the blaze under control.
A statement by North Yorkshire Fire and Rescue Service last month said: "Following investigations into the cause of the fire at Crathorne we consider the most probable cause of the fire to be an electric fly killer/insectocutor in the roof space of the east wing of the hotel.
"While other possible causes cannot be fully eliminated we are confident that the cause of the fire was accidental."
Chairman and chief executive Julia Hands said: "Everyone at Crathorne Hall has worked so hard to get the hotel open again following the fire. We are immensely thankful to the fire services from North Yorkshire, Durham and Darlington and Cleveland for containing the fire to the East Wing and minimising the damage."
The Hand Picked Hotels group comprises 21 country house hotels across the UK and the Channel Islands. It was named AA Hotel Group of the Year 2012-2013.