11000 sq feet in santa clara near their HQ? Sounds like something more for their own internal use (eg. test lab) rather than the NC data center which is something for public use.
Apple just did some data-center type upgrades (huge AC and power units, concrete walled the windows, etc) to one of their buildings on Bubb Road in Cupertino; that building could tape out to 11K SF.
Not a big place, maybe just something to replace the small one in Cup that burned down last year.