The project would have two phases.  One of them is to complete the facilities for the swimming and water polo world championships in 2021 and the other to renovate the popular spa itself, according to reports. 

The central government will finance the larger part of expenses and the city will cover the spa renovation, at a cost of HUF 3.5 bln. 

Building is scheduled to start in September 2015 and last 20 months.