NEW YORK CITY-Tuesday morning brought an announcement of onemulti-floor Manhattan headquarters lease, and Tuesday afternoonbrought two more. Rudin Management Co. said late yesterdayafternoon that the National Football League has signed a 20-yearlease for approximately 175,000 square feet at 345 Park Ave. forits new headquarters, while SL Green Realty Corp. announced thatCBS Broadcasting had extended its lease for 281,896 square feet ofstudio space at 555 W. 57th St. through 2023. In all, nearly800,000 square feet of big leases in Manhattan and its suburbs wereannounced Tuesday.

The NFL is relocating from Broadway Partners’ 280 Park Ave. andreducing its square footage by about 15% from the 205,000 squarefeet it currently occupies at 280 Park. Along with three fullfloors totaling about 143,000 square feet, the league is alsotaking approximately 30,000 square feet of below-grade space at 345Park. According to a release, the below-grade space could be usedfor various operational and administrative departments.

Eric Grubman, EVP of NFL Ventures and business operations, saysin the release that the 44-story 345 Park is “an outstandingbuilding and will enable us to be more efficient.” Efficiency isthe name of the game, according to the Wall StreetJournal: in reporting the pending lease earlier this week, theWSJ cited NFL commissioner Roger Goodell’s 2008 directiveto cut league expenses by $50 million.