Yorkshire have announced a 20-year redevelopment plan for Headingley as the county attempts to make sure international cricket stays at the ground.
Major renovations at Edgbaston and Old Trafford, coupled with the emergence of the Rose Bowl, Chester-le-Street and Sophia Gardens as international venues, has seen the Leeds ground face greater competition to stage England games in recent years.
The new Carnegie Pavilion was opened in 2010 and Yorkshire have now unveiled plans for a six-phase renovation plan which will include the addition of permanent floodlights, the redevelopment of the stand connected to the neighbouring rugby ground and a new pavilion in the north-west corner of the ground.
Nearly 1,000 seats will also be added to the north-east stand as the capacity is increased from 17,000 to 20,000 and a roof will also be put on the west stand.
Yorkshire County Cricket club chairman, Colin Graves, said: "This is the most ambitious project the club and the venue will have undertaken since the ground was first established 125 years ago.
"Our ambitions are clear. We want to create a stadium that is amongst finest in the world and enable Yorkshire to continue to stage major international fixtures over the long term.
"It is vital that we don't lose sight of our objectives. As other venues around the country continue to invest in their facilities, we cannot afford to stand still and expect that Headingley will always host international cricket.
"The stark reality is that if our stadium fails to evolve we will lose our Test Match status, which would be a devastating blow to the region."
He added: "The Masterplan has been designed to provide a framework to enable us to achieve our objectives of improving facilities over a period of time.
"The phased approach allows room for flexibility and for the stadium complex to evolve over time. Providing the best facilities for our stakeholders, including members, corporate patrons and our playing staff is my driving force.
"These are all very exciting proposals and we will be working with local residents and all parties involved in these plans, as, together, we seek to make them a reality.
"I will be working tirelessly, alongside our partners, to ensure this project becomes a reality and my lasting legacy as chairman of Yorkshire County Cricket Club."
Headingley will host this summer's second Test match against Sri Lanka beginning on June 20, as well as the fifth one-day international against India on September 5 and will also host a Test against New Zealand and an ODI against Australia in 2015.