The Hammers were named preferred bidders in December but negotiations with the London Legacy Development Corporation (LLDC) have been long and tortuous.
However, the LLDC announced this morning that a deal has now been signed off that sees the Premier League club become anchor tenants under a 99-year lease.
Plans for the revamped stadium were unveiled this morning, with the reported £150 million facelift due to be completed in time for the 2016-17 season.
The Olympic Stadium will be transformed into a 54,000-seater venue, with West Ham now set to embark on a detailed, independent supporter consultation process.
"It's fantastic for everyone at West Ham United that at last all the club's hard work over the past three years has paid off," joint chairmen David Sullivan and David Gold said......read more on http://holakomolafe..com/2013/03/west-ham-united-confirmed-as-olympic.html