Boutique hotel group City & Country Hotels has revealed details of the spa being launched at the new The Langley hotel later this year.

The 17,222sq ft (1,600sq m) luxury spa has been designed by Dennis Irvine Studio and will feature five treatment rooms.

A separate VIP spa suite will also be available, equipped with a number of exclusive facilities – such as a private relaxation space, Juniper sauna, an amethyst steamroom and a private hammam.

The spa will have two thermal areas – one of which is designated female-only – and will feature a vitality pool, sauna, steamroom, hammam and heated relaxation loungers.

Spa services include a manicure and pedicure studio, hair salon and lounge. There is also a 16m indoor pool with an infinity edge and a separate outdoor pool.

The hotel’s wellness offer includes a health club, created in partnership with personal trainer Matt Roberts, featuring a range of fitness technologies and equipment – including a cryotherapy centre.

Roberts has also devised a programme of outdoor exercise classes suitable for the hotel’s landscaped gardens, which were designed in the 18th century by renowned landscape architect ‘Capability’ Brown.

The 41-bedroom The Langley in Iver, Buckinghamshire, is located on the former estate of the Dukes of Marlborough and will occupy two buildings – the dukes’ historic mansion and a Grade II-listed 18th century building, formerly used as stables and a brewhouse.

The property is owned by City & Country Hotels, which owns four other hotels – The Wellesley, Wyck Hill House, The Royal Hotel Cardiff and Nr 10 in Manchester – as well as The Wellesley luxury yacht. City & Country is a subsidiary of London-based property investor Arab Investments.

Due open in July 2018, The Langley will join Marriott International’s Luxury Collection as part of plans to establish the property on the UK’s high-end hotel market.

“Following the meticulous restoration of the estate, The Langley is set to be a stunning addition to the Luxury Collection portfolio," said Jenni Benzaquen, vice president, Luxury Brands, Europe for Marriott International.