The Cardiff Arms Park turf on which Gareth Edwards scored arguably the greatest rugby try ever seen will be dug up and replaced with an artificial surface for next season.
Once the venue used for Wales internationals and host to the Barbarians when Edwards scored an extraordinary try against the All Blacks in 1973, the stadium is now dwarfed by the Millennium Stadium next door.
Club side Cardiff Blues returned there last year after a spell at the Cardiff City football stadium.
The Blues say the new surface will allow games to go ahead no matter the weather and hopefully enable them to play a more expansive and attractive game for supporters to enjoy.
Cardiff Blues are scheduled to play their first match on the new surface in August.