What’s the Difference?
“The master suite, with two baths, picture windows and built-in bookcases, fronts the park; the other three bedrooms all have en-suite marble baths.”
–“Towers of Limestone, Sold for $32.5 Million“; The New York Times (2/15/2013)
As best I can tell, the only difference 
between an “en-suite” bath and a “private” bath is the number of zeroes in the property’s sales price.
In the case of the 4 BR/5 BA condo in 15 Central Park West (pictured at right) . . . that would be six zeroes.
$7,000 a Square Foot
If that math throws you, consider that, at a prevailing price of $7,000 a square foot, a 500 square foot studio in the building (assuming such a thing exists) would run a cool $3.5 million.
Here in the considerably less expensive (and pretentious) Midwest, “adjoining” or “connected” work equally well for “en-suite.”
P.S.: Once upon time, locals referred to Twin Cities-based mega-retailer Target as “Tar-zhay′.”
