Is it risky to buy "off-the-plan" without first seeing the completed property?

Is it risky to buy "off-the-plan" without first seeing the completed property?

Investors mitigate this risk to an extent by :

  1. buying from reputable developers who have record of success, quality and reliability
  2. buying in positions with potential for strong capital growth. Such as “lack of land” , waterfront, attractive lifestyle and amenties.
  3. buying properties that attract an affluent market for continuing high rents and quality tenants.