2007_11_mark2.jpgIf you're really, really rich, why not offer $150 million for a triplex penthouse at The Mark Hotel on East 77th Street? The Post reports that Russian-born American billionaire Leonard Blavatnik (#102 on the last Forbes list has "signed a letter of intent" for a number of units that would total almost 30,000 square feet. That's about $5,000/square foot!

The Mark is being renovated to offer residences in addition to its hotel rooms. We guess that Blavatnik will be getting the penthouse, the three apartments on the 15th floor, and perhaps both residences on the 14th floor (the square footage hits about 30,000). You can see plans for the 14th and 15th floor here, and the 10,000 square penthouse here (it has a 2,300 square foot rooftop terrace and a skylit conservatory). The apartment would also have twice-daily maid service and other amenities from the Mark - and Sant Ambroeus is just downstairs!

One real estate agent told the Post, "It's hard to imagine there's a real-estate slump when a number like that is being bandied about." Indeed - the Real Estate Board of New York's latest report says that the market for condos is strong (Manhattan prices rose 25%) while co-ops sales were stable. And Blavatnik already has two NYC residences - a $50 mllion townhouse and a $27 million apartment on Fifth Avenue.