Wiktionary
n. A house open to the public as an exhibition of architecture, furnishing, etc.
Usage examples of "showhouse".
Although what they mostly needed was confession, there were also restaurants, showhouses, a casino, and several game halls in town.
Unfortunately the theme seemed faked, much like those overdone showhouses that lacked warmth to go with their manicured ambience.
Max worked for Hutch Sales, in the exhibitions department, which dealt with permanent showhouses and with the single collapsible building that did the rounds of exhibitions in the UK.
They could only see showhouses or stands or nauseating slogans or the backs of other people's necks.
But the lack of aesthetic quality wasn't putting people off, and in aisles and other showhouses throughout the hall, thousands of admirers were craning their necks attempting to get a better view.