off-plan adjective 1adverb 1 adjective1 •Being or relating to a property that has not yet had a structure built on it.About 2m off-plan homes remain unfinished across China, according to a rough estimate by S&P. […] In 2021, about 90% of homes were sold off plan in China. — 2022 adverb1 •Of a property: without yet having had a structure built on it.About 2m off-plan homes remain unfinished across China, according to a rough estimate by S&P. […] In 2021, about 90% of homes were sold off plan in China. — 2022