resale

Zakaat on land purchased with the intention of resale

Q: A person purchased land abroad with the intention to sell and make profit 8 years ago. The price of this land has risen, thought is stagnant at present. However due to a decline in foreign investors in the country the market for foreign companies purchasing land from individuals is at a standstill. Therefore being unable to sell this land for the foreseeable future would one be required to pay zakaat on this? If so, at what price? i.e market or purchase price?