The new owner of the Victorian mansion in North Wales plans to restore it as a luxury hotel after buying it for £1.5m at auction.
Insolvency firm Cooper Parry handled the sale on behalf of the mortgage holder and said it could not disclose the buyer's name.
The 122-room chateau-style hall in St George near Abergele is set in 18 acres of land and is Grade 2-listed. The earlier stable blocks – the hall is 1870s and Palladian stables 1850s – are Grade 1-listed.
Tyrone Courtman, partner at Cooper Parry, said: "The new owner has experience of turning sites like Kinmel Hall into attractive luxury hotels so the site will get investment and the attention it deserves and we look forward to how it progresses.
"The site still needs some work on it to get it to which has begun and may take some while but the end results are set to be spectacular."
The main hall totals 70,000 sq ft, there are 13 mews houses and new-build development opportunities for around 100,000 sq ft of mixed-use space.
No date has been set for the hotel opening.