Blackstone-backed Warner Hotels to invest £15.5m in Thoresby Hall

Warner Hotels has announced a £15.5m investment in Thoresby Hall, Nottinghamshire, in a bid to strengthen its portfolio of wellness retreats.

Thoresby Hall is set to join the Reserve, by Warner Hotels collection, sitting alongside the Runnymede on Thames in Windsor and the Grade II-listed Heythrop Park in the Cotswolds.

These properties are positioned at the premium end of Warner Hotels, which operates 16 hotels across the UK for adult-only, all-inclusive breaks.

Thoresby Hall will offer 221 refurbished rooms, newly-added accommodation, 51 upgraded patios, a revamped Live Lounge Bar, and pop-up and seasonal refreshment stations once it reopens in January 2026.

According to its website, the property is also looking to add an outdoor spa garden with a hot tub, plunge pool, sauna and treatment rooms.

Since being bought by Blackstone in 2021, Warner Hotels has undergone an extensive refurbishment programme costing nearly £120m.

Landmark projects have included the £45m restoration of Studley Castle in Warwickshire, the £47m refurbishment of Heythrop Park, further multi-million-pound upgrades at the Runnymede on Thames and the strategic acquisitions of Dalmahoy Hotel and Country Club in Edinburgh and the Forest of Arden Country Club in Birmingham.

Paul Pomroy, chief executive of Warner Hotels, said: “Thoresby Hall represents the next step in our transformation strategy, by taking an estate steeped in history and reimagining it as a flagship Reserve by Warner Hotels destination for today’s holidaymakers. 

“This investment builds on the progress we’ve made across the portfolio and underlines our confidence in the strength of UK leisure. With our strong backing from Blackstone, we’re proud to be setting new standards as a market leader and continuing to grow our nationwide collection.”

In July, it was reported Bourne Leisure, the parent company of Haven holiday parks and Warner Leisure hotels, was planning a split that would lead to separate auctions of the businesses.