Noun
A rustic house or apartment in a garden or park, to be used as a pleasure resort in summer.
Source: Webster's dictionaryAt Can Lis the summerhouse that architect Utzon built for his family, The outer pillars and supporting walls are traditional Mallorcan marès, a local porous sandstone, with denser Santanyí sandstone used for interior walls and floors throughout. Source: Internet
Seward customarily greeted personal friends at the door and was fond of walking them through his tree-lined garden to his white summerhouse. Source: Internet