Barcelona's Camp Nou stadium is set to undergo a £496m redevelopment after the club's members voted in favour of the project.
It is believed that a roof will be added to the arena, while its capacity will also be increased by 5,000 to 105,000.
The project, which will take an estimated four years to complete, with construction commencing in 2017, is poised to extend beyond football, with an ice rink and a 5,000-space car park set to be included in surrounding areas of the stadium.
President Josep Maria Bartomeu said on the club's official website: "Days like today are when the world sees what FC Barcelona is and means. The support for the proposal has been extraordinary.
"I'm very satisfied. It's a great day, a democratic festival for the Barca members. Voting made me very happy, as did seeing so many votes cast by members. It's a huge project that will improve the club for years to come.
"The most important thing is that the members decide in a massive way. The members have given me strength. We will continue to work very hard like we always have and we continue to solve problems."
Camp Nou is the largest stadium in Europe and ranks 11th in the world in terms of overall capacity.