mansionette

From mansion +‎ -ette. Doublet of maisonette.

mansionette (plural mansionettes)

1. (US) A large and somewhat luxurious house.
   • 1860 July, The Gentleman's Magazine, page 80:

     In the smaller plans of a "Mansionette near Wimbledon Park," "Semi-detached Houses," and "The Compact House built near Blackheath," we are not favoured with any scale.

   • 2007 March 12, Alessandra Stanley, “For This Family of Pros, the Con Is Everything”, in New York Times‎:

     Trading in their battered RV and Louisiana swamplands for a sumptuous pink mansionette with swimming pool, the Malloys pull off their ruse with skill and also childish naïveté.

2. (UK) A flat that spans two or more floors, and often has its own entrance (i.e. not off a communal hallway).
   • 2014, Eoin McNamee, Blue is the Night:

     gone to London to work and had left her mansionette flat empty. The mansionettes stood on high ground overlooking the docks.

• maisonette
• mansion

• sementation