Yes, but not many, and they sell for premium prices. They are often sold a &quot;penthouse&quot; units, only on the top few floors.<p>They are frequently aimed at retirees downsizing from even larger free-standing homes.  Or, wealthy buyers looking for an urban crash-pad, in addition to their mansion outside the city center.<p>edit - a quick search of Washington DC shows 14 units available with 3+ bedrooms and &lt;$700,000.  Of those, about half are in really rough neighborhoods, where no professional likely to move.