A formerly hard-partying block in Chelsea has slipped off its dancing shoes and stepped into something a little more comfy -- or, more to the point, a bit more residential. The Wall Street Journal reports that the West 27th Street block between 10th and 11th Avenue, formerly the site of several notably noisy night clubs, has recently given way to new commerical and residential construction -- with Chelsea Muse, a new luxury rental, leading the way. And while the economy is still somewhat unsteady, the development surge in West Chelsea's former club haven is showing every indication of continuing its book. Factor in the arrival of the second leg of the High Line, and it's easy to understand why the Journal deems the northern reaches of Chelsea "poised for a new wave of development."