A planning application by Swinton Park for a 2,700sq m (29,063sq ft) country club and spa extension in North Yorkshire, UK, has been approved.

The £5.5m (US$8.6m, €7m) project at the estate, which has been owned by the Cunliffe-Lister family since the 1880s, will be designed by Manchester-based architecture firm NJSR. It will involve the restoration of traditional workshops and garden buildings that are adjacent to the Grade II-listed 31-bedroom castle hotel, in addition to the creation of a new wing that is to be built within a walled garden.

The spa, co-ordinated by spa consultant Helen Merchant, will have six treatment rooms and one private therapy suite. There will be three heat experiences, a rasul treatment room, relaxation room and a vitality pool.

The health club, comprising a fitness studio, gym, indoor swimming pool and the spa, will open towards the end of Q3 2015. The project will create a total of 25 new full-time jobs. There are also plans for a new 40-seat conservatory restaurant, coffee shop and Swinton Estate shop.

Located within the 20,000-acre (8,094-hectare) Swinton Estate, Swinton Park is hoping its spa will become a centre of excellence for skincare.

The main product house at the spa will be Thalgo and the spa will be run in-house by Swinton Park staff, including spa manager Lynn Roach.

Swinton Park proprietor Felicity Cunliffe-Lister said: “We are thrilled to be able to move forward with this project and, together with the expertise of our spa consultant, Helen Merchant, we are confident we will create something exceptional that will see Swinton Park realise its full potential within the tourism industry.”

Swinton Park also offers walking, fishing, falconry, riding and shooting to guests, in addition to a cookery school and nine-hole golf course.