For a man who dreams up such surreal photos, David LaChapelle’s Chelsea apartment is surprisingly subdued. When the Post reported that the veteran photographer would be putting his parlor level apartment at 427 West 21st Street on the market for $2.469 million, the announcement stirred all kinds of images of a home awash in LaChapelle’s familiar green neon light. But nope. The listing, which went live today, shows a more standard, albeit lovely, one-bedroom apartment with a little porch and three fireplaces. LaChapelle has owned the apartment since 2011, when he bought it for $1.74 million.