Budget health club operator Pure Gym will open four new sites in South London (Kennington), Belfast, Birmingham (Edgbaston) and Southampton.

The roll-out of four new gyms follows a £10m investment led by Magenta Partners, whose principal investor is New Look entrepreneur Tom Singh.

The Belfast and Southampton sites are due to open in November whilst the Edgbaston gym will open by Christmas 2010.

The Kennington club - the group's first in London - will open to business in April 2011.

Adding to the four sites, chief executive Peter Roberts revealed that the expansion of the chain is set to continue with a further six sites in 2011. The new openings are part of Pure Gym's plans to open 24 new clubs in the UK over the next two years.

Roberts said: "The success of the initial gyms has demonstrated the strong demand for low cost operators in the market. With a strong product offering and funding in place to grow the brand, we have ambitious expansion plans for the UK.

"The management team in place has a clear vision to establish locations that meet our success criteria. One of our biggest challenges is to overcome planning obstacles and ensure we identify the most suitable sites by continuing to lease buildings from major institutional Landlords."