Sherman Equities is giving the High Line a new neighbor--a luxury condominium at 500 West 21st Street (at Tenth Avenue). This building has homes up to 4,000 square feet. Families are not only the ones taking notice: the area is prime real estate for those who work at neighboring Google or anywhere in the Chelsea Vicinity (or Manhattan, for that matter). The water access is pretty enviable as well. And as the High Line has burgeoned into one of New Yorks hottest destinations in any season, we expect people to be practically banging down the doors.