From Longman Dictionary of Contemporary Englishsummerhousesum‧mer‧house /ˈsʌməhaʊs $ -ər-/ noun [countable] DLOa small building in your garden, where you can sit in warm weather
Examples from the Corpus
summerhouse• Statues and a summerhouse complete the effect.• At the end of the garden she reached a summerhouse.• He cleared the summerhouse so she would have a studio, and gave her the only key.• Inside the summerhouse she saw an old woman and a boy.• I suggested that the President and the First Lady inspect the summerhouse together.• She fitted out the summerhouse with a sleeping bag and a change of jeans.• Then Susan walked past the summerhouse to watch the dark man paint.• Lying on her back, floating, she looks towards the summerhouse.