In a surprise to commercial market-watchers, Bloomberg signed a nearly 1 million-square-foot lease extension and expansion at SL Green’s 919 Third Ave. between East 55th and 56th streets.

Third Avenue was never a first for tenants. But as Class A office towers along Fifth, Sixth, Madison and Park avenues lease ...

There’s 1.5 million square feet up for grabs at SL Green’s 919 Third Ave. SL Green Realty Several Third Avenue towers have prebuilt offices ready to rent as small as 2,000 square feet ...