Challenges — finding anchor tenants and financing — are no match for corporate demand, developers like SL Green's Marc ...

Hedge fund magnate Ken Griffin has dropped $45 million on an 18-room apartment in 740 Park Avenue, one of Manhattan's most luxurious residential buildings.

And Vornado Realty Trust and Rudin recently kicked off the public review process for 350 Park Avenue, their Citadel-anchored skyscraper, where they’ll seek to start construction next year.